Best aftermarket exhaust system for performance purposes - Club4G Forum : Mitsubishi Eclipse 4G Forums - 2006-2012 Eclipse Authority

jhun35 · July 6th, 2011, 01:13 AM

I'm sure this has been asked before, but just curious on peoples opinions. Wondering what would be my best bet for an exhaust system for max performance increase on my '06 GS.

meDave · July 6th, 2011, 01:53 AM

Yes it has. If you are still using stock exhaust manifold no exhaust change will really help you, it'll just change the sound. Now if you are running a header (RRE,OBX,Ripp) that's a different story 2.5 piping would be the biggest you need put a high flow cat nice resonator and free flowing muffler and you're as good as gold!

Turbo charging same set up but you can upgrade to 3" piping.

Stock piping is not the problem it's 2 1/8" piping which works fine, it's the exhaust manifold that slows things down

Use that search button, and you'll find a lot of good info.

jhun35 · July 6th, 2011, 02:11 AM

thanks man, yeh search buttons make me mad lol. People word things differently and I feel like I always miss out on valuable info. But I plan on upgrading my headers in the process.

meDave · July 6th, 2011, 02:24 AM

I'm on my second custom exhaust setup now. 2.5 cat back no resonator, with a cherry bomb glasspack muff into dual 4" tips, and I must say besides being loud as hell I lost a lil power, thinking too free flowing.

My last setup was a 2.25 resonator back with a dynomax welded ultra flow muff sounded great and decent power. Running a Fujita CAI and RRE header with both setups.

I plan on scrapping the cherry bomb and putting two resonators in its place not too worried about the loss in power cuz I'm in process of a turbo build, and the loss of back pressure will actually help with the turbo.

jhun35 · July 6th, 2011, 03:08 AM

I eventually want to start a turbo build. I have a lot of things I have to handle first. I was looking into RRE Headers soon. If I'm going turbo should I go ahead with the 3" now?

meDave · July 6th, 2011, 08:59 AM

No, what you need to do is just buy a muffler take it to your local muffler shop and have them weld it on to your stock piping. Done!

Putting 3" on there now and your car will lose a lot of power. When running a turbo I said you "can" upgrade to 3", but 2.5" is fine for the boost this car uses.

When I dyno'd my car (your other thread question) it was with the stock piping.

And before your start another thread. No, they do not make a turbo kit for our car, and if you piece it together and do all the work yourself it'll still cost you around $3,000 someone doing the work be ready to pay $5-6,000+

JoeyC · July 6th, 2011, 10:59 AM

injen mufflers

July 6th, 2011, 01:13 AM	#1 (permalink)
jhun35 UV Blue Crew Name: Jay Join Date: Apr 2011 Location: Cruisin' Vehicle: 2006 Eclipse GS Auto Posts: 4,451 Rep Power: 6	Best aftermarket exhaust system for performance purposes I'm sure this has been asked before, but just curious on peoples opinions. Wondering what would be my best bet for an exhaust system for max performance increase on my '06 GS.

July 6th, 2011, 01:53 AM	#2 (permalink)
meDave Senior Member Name: David Join Date: Jan 2008 Location: San Francisco, Calif. Vehicle: 06-GS-Titanium Pearl Posts: 1,112 Rep Power: 6	Yes it has. If you are still using stock exhaust manifold no exhaust change will really help you, it'll just change the sound. Now if you are running a header (RRE,OBX,Ripp) that's a different story 2.5 piping would be the biggest you need put a high flow cat nice resonator and free flowing muffler and you're as good as gold! Turbo charging same set up but you can upgrade to 3" piping. Stock piping is not the problem it's 2 1/8" piping which works fine, it's the exhaust manifold that slows things down Use that search button, and you'll find a lot of good info. __________________ Performance: AEM F/IC w/ BilletProof PNP Harness, AEM UEGO Wideband, 2.5" Catback Exhaust w/Dual Outlets, Fujita CAI, Ported Intake Manifold with GT TB Swap, Ralco RZ Short Shifter, RPW Thermal Spacer Kit, RRE SS Race Header Suspension: Evo Brembo Swap, Front: Cusco Strut Tower Bar, Custom Tein Coilovers with D2 Camber Plates Rear: Eibach Sportlines Springs, KYB GR-2 Shocks

July 6th, 2011, 02:24 AM	#4 (permalink)
meDave Senior Member Name: David Join Date: Jan 2008 Location: San Francisco, Calif. Vehicle: 06-GS-Titanium Pearl Posts: 1,112 Rep Power: 6	I'm on my second custom exhaust setup now. 2.5 cat back no resonator, with a cherry bomb glasspack muff into dual 4" tips, and I must say besides being loud as hell I lost a lil power, thinking too free flowing. My last setup was a 2.25 resonator back with a dynomax welded ultra flow muff sounded great and decent power. Running a Fujita CAI and RRE header with both setups. I plan on scrapping the cherry bomb and putting two resonators in its place not too worried about the loss in power cuz I'm in process of a turbo build, and the loss of back pressure will actually help with the turbo. __________________ Performance: AEM F/IC w/ BilletProof PNP Harness, AEM UEGO Wideband, 2.5" Catback Exhaust w/Dual Outlets, Fujita CAI, Ported Intake Manifold with GT TB Swap, Ralco RZ Short Shifter, RPW Thermal Spacer Kit, RRE SS Race Header Suspension: Evo Brembo Swap, Front: Cusco Strut Tower Bar, Custom Tein Coilovers with D2 Camber Plates Rear: Eibach Sportlines Springs, KYB GR-2 Shocks

July 6th, 2011, 08:59 AM	#6 (permalink)
meDave Senior Member Name: David Join Date: Jan 2008 Location: San Francisco, Calif. Vehicle: 06-GS-Titanium Pearl Posts: 1,112 Rep Power: 6	No, what you need to do is just buy a muffler take it to your local muffler shop and have them weld it on to your stock piping. Done! Putting 3" on there now and your car will lose a lot of power. When running a turbo I said you "can" upgrade to 3", but 2.5" is fine for the boost this car uses. When I dyno'd my car (your other thread question) it was with the stock piping. And before your start another thread. No, they do not make a turbo kit for our car, and if you piece it together and do all the work yourself it'll still cost you around $3,000 someone doing the work be ready to pay $5-6,000+ __________________ Performance: AEM F/IC w/ BilletProof PNP Harness, AEM UEGO Wideband, 2.5" Catback Exhaust w/Dual Outlets, Fujita CAI, Ported Intake Manifold with GT TB Swap, Ralco RZ Short Shifter, RPW Thermal Spacer Kit, RRE SS Race Header Suspension: Evo Brembo Swap, Front: Cusco Strut Tower Bar, Custom Tein Coilovers with D2 Camber Plates Rear: Eibach Sportlines Springs, KYB GR-2 Shocks

July 6th, 2011, 10:59 AM	#7 (permalink)
JoeyC -cruzer- Name: joeyc Join Date: Nov 2010 Location: AZ Vehicle: 2006 ECLIPSE GT Posts: 1,561 Rep Power: 3	injen mufflers __________________

		Club4G Forum : Mitsubishi Eclipse 4G Forums - 2006-2012 Eclipse Authority > Performance and Technical > 4G Eclipse GS/SE Specific
Best aftermarket exhaust system for performance purposes

July 6th, 2011, 02:11 AM	#3 (permalink)
jhun35 UV Blue Crew Name: Jay Join Date: Apr 2011 Location: Cruisin' Vehicle: 2006 Eclipse GS Auto Posts: 4,451 Rep Power: 6	thanks man, yeh search buttons make me mad lol. People word things differently and I feel like I always miss out on valuable info. But I plan on upgrading my headers in the process.

July 6th, 2011, 03:08 AM	#5 (permalink)
jhun35 UV Blue Crew Name: Jay Join Date: Apr 2011 Location: Cruisin' Vehicle: 2006 Eclipse GS Auto Posts: 4,451 Rep Power: 6	I eventually want to start a turbo build. I have a lot of things I have to handle first. I was looking into RRE Headers soon. If I'm going turbo should I go ahead with the 3" now?

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