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| 4G Eclipse GS/SE Specific 2.4L I4 (4G69) Specific Forum |
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#1 (permalink) |
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G-TuneD...
Name:
George Platt
Join Date: Mar 2011
Location: Florida, Weirsdale
Vehicle:
2009/Eclipse/GS
Posts: 1,286
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All cats gone = More Power??
Alright, so I did use the search function, no bueno.
I have Headers+SRI on my car, so the first two cats are gone. Now, the third cat... I have a few different scenarios I hope someone can shed some light upon. But first, let me be VERY broad, and ask this first... How can I squeeze all the (Preferably torque) power out of my exhaust system? Scenarios... ![]() Straight pipe back w/o cat w/o muffler... Straight pipe back w/ cat w/o muffler... Straight pipe back w/ racing cat w/o muffler... Straight pipe back w/o cat w/ magnaflow RRE muffler... Straight pipe back w/ racing cat w/ magnaflow RRE muffler... Also... The Aero 2540i is looking interesting... Sound of exhaust isn't a issue for me. For the week I had open headers, I loved it. And the stock audio does a good job. ![]()
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HAVE: OBX Exhaust Header+ Mid pipe, TB bypass, Custom CAI, HID Halo Sonar Projectors, Aero 2540i, Dash kit, AEM FIC, D2 Coilovers, 2 JBL GT5-12's powered by Power Acoustik SOON: Turbo Kit... GT25 WANT: Custom painted Rims, 4 bars of sway, and the rest of my fucking turbo kit. |
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#3 (permalink) |
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Got Stance??? i dont :(
Name:
Dann
Join Date: Apr 2011
Location: LongIsland NY
Vehicle:
2009 Eclipse GT
Posts: 1,457
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Dependin on the muffler used wit no cat it can sound very ricey. I think the hks muffler cancel that out nicely. And dependin were u live u will fail ur inspection wit no cat. I personally would go wit a high flow.cat n dependin onsound u want straight pipe it out or add a muffler
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#4 (permalink) |
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Hard Core 4ger
Name:
Joe
Join Date: Jun 2009
Location: Norman, OK
Vehicle:
08 Eclipse GT - SC
Posts: 9,236
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man I honestly don't know - no way to know which of these will actually produce the most torque w/out trying them on your car. I would not go w/out a muffler. If I were to choose I would do the performance cat and the Magnaflow. that is me. you may get a FEW more ponies doing it another way - but this is going to perform good AND sound good.
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![]() "Has blower and many modifications." ~347 WHP / ~309 WTQ / ~6 lbs Boost |
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#5 (permalink) |
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Huge Member
Name:
Steve
Join Date: May 2010
Location: Tampa FL
Vehicle:
2006 Eclipse GT-N
Posts: 1,895
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I have obx straight to hks..don't really get a rasp and I love the feel of the power..and it deff freed up a lot of power
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Full Bolt On + Zex 75 wet shot ~ 353WHP~~327lbs TQ http://club4g.org/board/members-ride...ates-ride.html RIP Matt (bullet06) A great man you were. |
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#7 (permalink) |
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illusionperformance
Name:
travis
Join Date: Jul 2010
Location: Reading, PA
Vehicle:
07 eclipse gs-n
Posts: 5,637
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i have rre header to magnaflow resonator and magnaflow muffler. and its a little raspy when the car is cold but otherwise i like it.
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Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq
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#9 (permalink) |
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Black Irish
Name:
Ross
Join Date: Jul 2009
Location: south carolina
Vehicle:
2006/eclipse/gs
Posts: 3,222
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ha nice suggestion but I doubt he is going to want to spend the $$ to verify if it adds power. If he feels a gain then he won't bother.
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#10 (permalink) | |||||||
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G-TuneD...
Name:
George Platt
Join Date: Mar 2011
Location: Florida, Weirsdale
Vehicle:
2009/Eclipse/GS
Posts: 1,286
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Quote:
Quote:
Quote:
Quote:
![]() Quote:
Is your sound deep and clean, or raspy at like 4k rpm? Quote:
Quote:
I just want to know the BEST gain before I do something dumb like buy an eBay JDM rice rice baby one for 40$ lol. So guys. The question is partially answered? Straight pipe to muffler/no cat?
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HAVE: OBX Exhaust Header+ Mid pipe, TB bypass, Custom CAI, HID Halo Sonar Projectors, Aero 2540i, Dash kit, AEM FIC, D2 Coilovers, 2 JBL GT5-12's powered by Power Acoustik SOON: Turbo Kit... GT25 WANT: Custom painted Rims, 4 bars of sway, and the rest of my fucking turbo kit. |
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#11 (permalink) |
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illusionperformance
Name:
travis
Join Date: Jul 2010
Location: Reading, PA
Vehicle:
07 eclipse gs-n
Posts: 5,637
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i can tell you a aero muffler with either header will be very loud.
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Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq
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#12 (permalink) |
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G-TuneD...
Name:
George Platt
Join Date: Mar 2011
Location: Florida, Weirsdale
Vehicle:
2009/Eclipse/GS
Posts: 1,286
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Sweet. Thats what I want. Real loud exhaust. But, will it rasp? Im going to put a stage 2 cam in it next year summer time. (grad present) ;D
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HAVE: OBX Exhaust Header+ Mid pipe, TB bypass, Custom CAI, HID Halo Sonar Projectors, Aero 2540i, Dash kit, AEM FIC, D2 Coilovers, 2 JBL GT5-12's powered by Power Acoustik SOON: Turbo Kit... GT25 WANT: Custom painted Rims, 4 bars of sway, and the rest of my fucking turbo kit. |
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#13 (permalink) |
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Senior Member
Name:
Rob
Join Date: Mar 2010
Location: Bel Air, MD
Vehicle:
2009/Eclipse/GS
Posts: 1,977
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OBX longtubes no cats and HKS
http://youtu.be/HUG0AtnY9PM
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Boobies: Because you can't motorboat personality |
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#14 (permalink) |
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tUNED.
Name:
Brian
Join Date: Sep 2010
Location: Boston, MA
Vehicle:
2009 4G69
Posts: 2,989
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sorry bout all the other noise in the shop but mine is rre heads, magnaflow high flow cat and magnaflow catback
Dyno - YouTube
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AEM FIC / UEGO Wideband + POD / Custom Bolted |
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#15 (permalink) | ||
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G-TuneD...
Name:
George Platt
Join Date: Mar 2011
Location: Florida, Weirsdale
Vehicle:
2009/Eclipse/GS
Posts: 1,286
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Quote:
RE: I came. Thats an amazing sound..... Quote:
__________________
HAVE: OBX Exhaust Header+ Mid pipe, TB bypass, Custom CAI, HID Halo Sonar Projectors, Aero 2540i, Dash kit, AEM FIC, D2 Coilovers, 2 JBL GT5-12's powered by Power Acoustik SOON: Turbo Kit... GT25 WANT: Custom painted Rims, 4 bars of sway, and the rest of my fucking turbo kit. |
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#16 (permalink) |
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Hard Core 4ger
Name:
Joe
Join Date: Jun 2009
Location: Norman, OK
Vehicle:
08 Eclipse GT - SC
Posts: 9,236
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to answer your question about why I wouldn't go w/out a muffler, I guess I just think it wouldn't sound good, but I don't know for sure. You can always try it and see what you think.
here is my set up - 3" SES by Injen from RIPP long tubes. (performance cat in there) If you have over-ear headphones it will sound 10x better. Long Tubes to 3" Cat-back
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![]() "Has blower and many modifications." ~347 WHP / ~309 WTQ / ~6 lbs Boost |
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#17 (permalink) |
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tUNED.
Name:
Brian
Join Date: Sep 2010
Location: Boston, MA
Vehicle:
2009 4G69
Posts: 2,989
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ya u need to hear it in person really. and revving the engine doesnt sound the same or as good as when ur driving so . . .
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AEM FIC / UEGO Wideband + POD / Custom Bolted |
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#18 (permalink) |
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illusionperformance
Name:
travis
Join Date: Jul 2010
Location: Reading, PA
Vehicle:
07 eclipse gs-n
Posts: 5,637
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this is the car with no muffler
VID00004-20110430-1328.mp4 video by oakleyfreak88 - Photobucket the car with aero turbine muffler, header and no 3rd cat ![]() car with no resonator magnaflow muffler and header photos253.mp4 video by oakleyfreak88 - Photobucket i think this was with the header no 3rd cat or resonator and a aero turbine muffler. MVI_0230.mp4 video by oakleyfreak88 - Photobucket
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Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq
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#20 (permalink) |
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Contributing Member!
Name:
Trevor
Join Date: Jan 2010
Location: Endwell, NY
Vehicle:
07 Spyder GS6
Posts: 1,422
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__________________
V6 Swap in Progress; Fujita F5 CAI, MagnaFlow CatBack, Energy Suspension Bushing, KYB/Eibach Pro Kit Combo, TB Bypass, Ripp Mods F/R Poly Mounts, Iridium IX One Step Colder Plugs, 8k HIDs |
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#22 (permalink) |
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illusionperformance
Name:
travis
Join Date: Jul 2010
Location: Reading, PA
Vehicle:
07 eclipse gs-n
Posts: 5,637
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cai, no cats, rre header, and cat back exhaust. im think it is also running some kind of piggyback because the afr's arent as bad as everyone else's
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Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq
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#23 (permalink) |
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Contributing Member!
Name:
Trevor
Join Date: Jan 2010
Location: Endwell, NY
Vehicle:
07 Spyder GS6
Posts: 1,422
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Like what Travis said, its in the description below the graph
__________________
V6 Swap in Progress; Fujita F5 CAI, MagnaFlow CatBack, Energy Suspension Bushing, KYB/Eibach Pro Kit Combo, TB Bypass, Ripp Mods F/R Poly Mounts, Iridium IX One Step Colder Plugs, 8k HIDs |
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#25 (permalink) |
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illusionperformance
Name:
travis
Join Date: Jul 2010
Location: Reading, PA
Vehicle:
07 eclipse gs-n
Posts: 5,637
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there has to be a piggyback on that car that they arent saying anything about. the afr never even goes below 12
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Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq
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#27 (permalink) |
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illusionperformance
Name:
travis
Join Date: Jul 2010
Location: Reading, PA
Vehicle:
07 eclipse gs-n
Posts: 5,637
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whats messed up is that they are advertising a horsepower bump and not saying that they are running tuning software to get that gain
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Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq
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#28 (permalink) |
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tUNED.
Name:
Brian
Join Date: Sep 2010
Location: Boston, MA
Vehicle:
2009 4G69
Posts: 2,989
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ya my torque is actually slightly above theirs but that hp is pretty high. and they still have the 3rd cat ?? it says one cat
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AEM FIC / UEGO Wideband + POD / Custom Bolted |
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#29 (permalink) | |
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Senior Member
Name:
Chris
Join Date: Mar 2011
Location: San Antonio, Tx
Vehicle:
2008/Eclipse/Gs-N
Posts: 1,681
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Quote:
Your car is pure sex. It looked so clean on the Dyno |
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#30 (permalink) |
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Contributing Member!
Name:
Trevor
Join Date: Jan 2010
Location: Endwell, NY
Vehicle:
07 Spyder GS6
Posts: 1,422
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Hard to say from the dyno graph, our cars run rich from the factory ECU, if it had been tuned, it would have been leaned to 13.1 AFR all the way to redline, which prolly would have netted a few more ponies.
__________________
V6 Swap in Progress; Fujita F5 CAI, MagnaFlow CatBack, Energy Suspension Bushing, KYB/Eibach Pro Kit Combo, TB Bypass, Ripp Mods F/R Poly Mounts, Iridium IX One Step Colder Plugs, 8k HIDs |
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#31 (permalink) |
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illusionperformance
Name:
travis
Join Date: Jul 2010
Location: Reading, PA
Vehicle:
07 eclipse gs-n
Posts: 5,637
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those dynos also werent done on the same day. if you zoom in on the graph you can see it maybe touches the 12 afr section but it generally above that dotted line which is the 12s section.
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Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq
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#32 (permalink) |
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Contributing Member!
Name:
Trevor
Join Date: Jan 2010
Location: Endwell, NY
Vehicle:
07 Spyder GS6
Posts: 1,422
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wow, didn't notice that.. wonder if its even the same car
__________________
V6 Swap in Progress; Fujita F5 CAI, MagnaFlow CatBack, Energy Suspension Bushing, KYB/Eibach Pro Kit Combo, TB Bypass, Ripp Mods F/R Poly Mounts, Iridium IX One Step Colder Plugs, 8k HIDs |
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#33 (permalink) |
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illusionperformance
Name:
travis
Join Date: Jul 2010
Location: Reading, PA
Vehicle:
07 eclipse gs-n
Posts: 5,637
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yeah its just kinda deceiving that they did that. i have had one or two issues with rre.
__________________
Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq
Last edited by akley88; September 19th, 2011 at 08:10 AM. |
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#34 (permalink) |
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Soon to be SC'd :)
Name:
Don Glisson
Join Date: Sep 2009
Location: Raleigh, NC
Vehicle:
2008 Eclipse GT
Posts: 25,369
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I have OBX long tubes, racing cat, Aeon imports 3" resonator, and custom pre-axle dual with magni-flow mufflers and it is still loud as heck. My racing cat is flanged at both ends so I can swap in a real cat for inspections....hate the inspection laws in NC.
Didn't notice that much of a gain loosing the pre-cats buy the rear cat delete gave me noticeable gains. I can really feel the difference when i swap the real cat back in for inspections.....feels like I'm dragging an anchor
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Mods: Nitro's Little Girl With Attitude Last edited by NitroGlisson; September 19th, 2011 at 12:03 PM. |
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#35 (permalink) | ||
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G-TuneD...
Name:
George Platt
Join Date: Mar 2011
Location: Florida, Weirsdale
Vehicle:
2009/Eclipse/GS
Posts: 1,286
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Okay guys, lets not get too off topic. Thanks.
Quote:
Trev, you are the man! Now I know the optimal sound and optimal setup. Thanks so much trev. Quote:
So, it has been decided, No cat pipe along with a Aero AT240 w/e muffler. Best sound (akley88, and opinion) Best performance (trev's chart) Best pulling power (NitroGlisson) Thank you all for helping me out, and possibly some other newbs. ![]()
__________________
HAVE: OBX Exhaust Header+ Mid pipe, TB bypass, Custom CAI, HID Halo Sonar Projectors, Aero 2540i, Dash kit, AEM FIC, D2 Coilovers, 2 JBL GT5-12's powered by Power Acoustik SOON: Turbo Kit... GT25 WANT: Custom painted Rims, 4 bars of sway, and the rest of my fucking turbo kit. |
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#36 (permalink) |
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Contributing Member!
Name:
Trevor
Join Date: Jan 2010
Location: Endwell, NY
Vehicle:
07 Spyder GS6
Posts: 1,422
![]() ![]() ![]() ![]() |
__________________
V6 Swap in Progress; Fujita F5 CAI, MagnaFlow CatBack, Energy Suspension Bushing, KYB/Eibach Pro Kit Combo, TB Bypass, Ripp Mods F/R Poly Mounts, Iridium IX One Step Colder Plugs, 8k HIDs |
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#37 (permalink) | |
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G-TuneD...
Name:
George Platt
Join Date: Mar 2011
Location: Florida, Weirsdale
Vehicle:
2009/Eclipse/GS
Posts: 1,286
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Quote:
![]() Sent from my DROID2
__________________
HAVE: OBX Exhaust Header+ Mid pipe, TB bypass, Custom CAI, HID Halo Sonar Projectors, Aero 2540i, Dash kit, AEM FIC, D2 Coilovers, 2 JBL GT5-12's powered by Power Acoustik SOON: Turbo Kit... GT25 WANT: Custom painted Rims, 4 bars of sway, and the rest of my fucking turbo kit. |
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#38 (permalink) |
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tUNED.
Name:
Brian
Join Date: Sep 2010
Location: Boston, MA
Vehicle:
2009 4G69
Posts: 2,989
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does anyone know wut muffler produces a great deep throaty sound for a straight piped GS . . . one that is not raspy and somewut high pitched ??
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AEM FIC / UEGO Wideband + POD / Custom Bolted |
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#39 (permalink) |
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Senior Member
Name:
Jon
Join Date: Apr 2011
Location: Wrightsville Beach, NC
Vehicle:
2008/Eclipse/Not a GT ; (
Posts: 1,203
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I haven't read a single word of this thread, not even the OP, because I do what the FUCK I want. I mean....I do what I WANT.
But according to RRE's dyno, yes it does increase power ; )
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Fujita F5 Cold Air Intake> RRE Headers> WORKS Axleback Exhuast> RRE Underdrive Pulley> Meghan Racing Springs> NOS Octane Booster> Seven Nitros |
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#40 (permalink) |
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tUNED.
Name:
Brian
Join Date: Sep 2010
Location: Boston, MA
Vehicle:
2009 4G69
Posts: 2,989
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muffler or axle-back ?? nice deep smoothe sound ??????
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AEM FIC / UEGO Wideband + POD / Custom Bolted Last edited by FeaRlezZ; October 14th, 2011 at 06:58 PM. |
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| Tags |
| audio, back, car, exhaust, exhaust system, good, headers, issue, light, magnaflow, muffler, pipe, power, racing, rre, sound, sri, stock, system |
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