muffler bolts w/springs? - Club4G Forum : Mitsubishi Eclipse 4G Forums - 2006-2012 Eclipse Authority

Scottishsamurai · October 23rd, 2011, 05:16 PM

Ok I searched and couldn't find anyone who did what I did so my question is-
The bolts and springs that hold the muffler to the exhaust pipes, are they necessary? I was getting some ratting from the muffler and a friend of my club said its my spring and advised me to remove them so i did and put some new bolts with some nuts to keep it tight. Then today (only 2 days later) and I was talking to a mechanic friend and he told me I need the springs to deal with the flexing of the pipe to the muffler when the engine revs and without them the bolts could snap off...so ya anyone heard or have this problem?
I should say this is with the stock muffler and piping.

nokiauser · October 23rd, 2011, 06:19 PM

Yea I was told the same thing by a muffler shop when I had them inspect the rattle but in my case, I had the RRE axleback at the time on the stock pipe flange. The springs were useless because they couldn't cover the gap and would just rattle.

If the newer bolts can clamp down tighter than the previous ones, then you should try to put back the springs.

akley88 · October 23rd, 2011, 06:27 PM

i have no springs on my muffler just grade 8 bolts.

Scottishsamurai · October 24th, 2011, 04:55 AM

how long have they been in there?

akley88 · October 24th, 2011, 08:44 AM

over a year since i replaced my muffler.

NitroGlisson · October 24th, 2011, 08:54 AM

I would think that the springs would cut down on unwanted vibrations too.

mrgibs121 · October 24th, 2011, 08:58 AM

i think all the way back at the muffler probably doesnt matter as much... where you really need them is where the cat connects to the midpipe

MACH1219 · November 1st, 2011, 03:02 PM

many exhaust systems, on many different models, have no springs what so ever. i would not lose sleep over this.

Boomko · November 1st, 2011, 04:49 PM

I don't think its necessary, in old days no exhaust systems had those stupid springs and all was fine. and to reduce vibrations and cracking problems all exhaust systems are hanging on some sort of rubber hangers.

October 23rd, 2011, 05:16 PM	#1 (permalink)
Scottishsamurai So many ideas, But no $$$ Name: Matt Join Date: Jun 2011 Location: Minnesota Vehicle: 2007/SE/GS Posts: 524 Rep Power: 1	muffler bolts w/springs? Ok I searched and couldn't find anyone who did what I did so my question is- The bolts and springs that hold the muffler to the exhaust pipes, are they necessary? I was getting some ratting from the muffler and a friend of my club said its my spring and advised me to remove them so i did and put some new bolts with some nuts to keep it tight. Then today (only 2 days later) and I was talking to a mechanic friend and he told me I need the springs to deal with the flexing of the pipe to the muffler when the engine revs and without them the bolts could snap off...so ya anyone heard or have this problem? I should say this is with the stock muffler and piping.

October 23rd, 2011, 06:19 PM	#2 (permalink)
nokiauser Senior Member Join Date: Jul 2011 Vehicle: Eclipse GS 5 Speed Posts: 646 Rep Power: 1	Yea I was told the same thing by a muffler shop when I had them inspect the rattle but in my case, I had the RRE axleback at the time on the stock pipe flange. The springs were useless because they couldn't cover the gap and would just rattle. If the newer bolts can clamp down tighter than the previous ones, then you should try to put back the springs. __________________ RRE/RRM Underdrive, Fujita F5 Wrinkle Black CAI, Throttle Bypass, GT Throttle body, Outlaw TB Spacer, Ripp Mods LT Headers, Magnaflow Performance Cat, Fully Custom 2.5" Exhaust Piping, RRE Magnaflow Muffler, Eibach ProKit Springs, Progress 24mm Rear Anti-Sway, Tanabe TSB, GT Tower Brace

October 23rd, 2011, 06:27 PM	#3 (permalink)
akley88 illusionperformance Name: travis Join Date: Jul 2010 Location: Reading, PA Vehicle: 07 eclipse gs-n Posts: 5,637 Rep Power: 7	i have no springs on my muffler just grade 8 bolts. __________________ Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq

October 24th, 2011, 08:44 AM	#5 (permalink)
akley88 illusionperformance Name: travis Join Date: Jul 2010 Location: Reading, PA Vehicle: 07 eclipse gs-n Posts: 5,637 Rep Power: 7	over a year since i replaced my muffler. __________________ Member of the giggle gas dark side The Fastest of the Slowest Nitrous Breathers the GS-N's 239whp/262wtq

October 24th, 2011, 08:54 AM	#6 (permalink)
NitroGlisson Soon to be SC'd :) Name: Don Glisson Join Date: Sep 2009 Location: Raleigh, NC Vehicle: 2008 Eclipse GT Posts: 25,369 Rep Power: 30	I would think that the springs would cut down on unwanted vibrations too. __________________ Mods: Nitro's Little Girl With Attitude

		Club4G Forum : Mitsubishi Eclipse 4G Forums - 2006-2012 Eclipse Authority > Performance and Technical > 4G Eclipse GS/SE Specific
muffler bolts w/springs?

October 24th, 2011, 04:55 AM	#4 (permalink)
Scottishsamurai So many ideas, But no $$$ Name: Matt Join Date: Jun 2011 Location: Minnesota Vehicle: 2007/SE/GS Posts: 524 Rep Power: 1	how long have they been in there?

October 24th, 2011, 08:58 AM	#7 (permalink)
mrgibs121 Senior Member Join Date: Jun 2007 Vehicle: 2007 eclipse GS Posts: 379 Rep Power: 5	i think all the way back at the muffler probably doesnt matter as much... where you really need them is where the cat connects to the midpipe __________________ 07 eclipse GS MT,AEM FIC with harness, RRE UD pulley, TB coolant bypass, ACT 6 puck ceramic clutch, Fidanza 8.5lb flywheel, AEM UEGO wideband, WRX 440cc blue injectors, custom boosted @ 8psi on a gt35 clone snail, custom tubular turbo manifold, wyntonm BOV and wastegate, 3" turbo back with catalytic converter, bronze helical 2.6GPM oil scavenging system and secondary filter, tanabe strut tower bar, megan lowering springs

November 1st, 2011, 03:02 PM	#8 (permalink)
MACH1219 Senior Member Join Date: May 2011 Location: Warner Robins GA Vehicle: 2007 Spyder GS Posts: 278 Rep Power: 0	many exhaust systems, on many different models, have no springs what so ever. i would not lose sleep over this.

November 1st, 2011, 04:49 PM	#9 (permalink)
Boomko Senior Member Join Date: Jan 2008 Location: Des Plaines, IL Vehicle: 08 Eclipse GS Posts: 246 Rep Power: 5	I don't think its necessary, in old days no exhaust systems had those stupid springs and all was fine. and to reduce vibrations and cracking problems all exhaust systems are hanging on some sort of rubber hangers.

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