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Muffler finally went bad! Options please

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Old Jan 12, 2012 | 09:25 AM
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Default Muffler finally went bad! Options please

So my muffler just went out after 10 years of faithful service. Yes, I was surprised it lasted as long as it did. Here is my dilemma: I have the Flowmaster American Thunder catback exhaust system and the muffler is a special order. Flowmaster will charge me $176 for the muffler and who knows for shipping. The system is 10 years old with no signs of rust. Car has been recently checked for leaks and it is good to go. Should I just buy the muffler or look to upgrade the entire catback system? Thanks for your feedback!
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Old Jan 12, 2012 | 09:26 AM
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Prior to the muffler going, were you content with it, or are you looking for something new?
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Old Jan 12, 2012 | 09:30 AM
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I really couldn't complain. Loved the sound and the system seemed to go well with my headers.
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Old Jan 12, 2012 | 09:36 AM
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If you're content with it, and the rest of the system is in good condition then i would just get the muffler. If you wanted changed then i'd say look at cutouts and other catbacks, but $200 bucks sounds better than spending $400.
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Old Jan 12, 2012 | 05:29 PM
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IMO, if you don't want to change the sound or how loud it is then as stated already get the replace from FM, otherwise a Dynomax #17536 would be a good replacement. It's quieter (especially in the car) and it's a lot less restrictive, plus it cost less and it's even Stainless Steel.
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Old Jan 13, 2012 | 05:03 AM
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10 yrs old, no rust, no leaks...I take it you have the SS version?

...is the entire intermediate pipe 2.75 inches? or just the inlet portion that mates to the Y?
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Old Jan 13, 2012 | 08:35 AM
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Originally Posted by etmateo
So my muffler just went out after 10 years of faithful service. Yes, I was surprised it lasted as long as it did. Here is my dilemma: I have the Flowmaster American Thunder catback exhaust system and the muffler is a special order. Flowmaster will charge me $176 for the muffler and who knows for shipping. The system is 10 years old with no signs of rust. Car has been recently checked for leaks and it is good to go. Should I just buy the muffler or look to upgrade the entire catback system? Thanks for your feedback!
MAGNAFLOW.MAGNAFLOW.MAGNAFLOW Part number 12267 available at
http://www.ecklersfirebird.com/

No need to change the cat back pipes they are all going to do the same flow.Just throw on the muffler they sound great inside and out you will not be disappointed!!!Just did mine last week off of my Flowmaster cat back.
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Old Jan 13, 2012 | 09:03 AM
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Your catback doesnt use a special muffler, just a normal flowmaster 80 series crossflow muffler. You can order it from jegs for around $90.
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Old Jan 13, 2012 | 12:53 PM
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FYI, ws6man29, that Magnaflow has 2.5" outlets, and moeZ28 the fm80 that comes with the cat-back has 3" outlets. You can't buy it from jegs or summit all the fm80's they sell aren't the same, the largest they have are dual 2.5" outlets; not dual 3" outlets.
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Old Jan 13, 2012 | 12:56 PM
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Originally Posted by Tobias05
10 yrs old, no rust, no leaks...I take it you have the SS version?

...is the entire intermediate pipe 2.75 inches? or just the inlet portion that mates to the Y?
Yes, just the inlet portion that mates to the Y-pipe merger.
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Old Jan 13, 2012 | 02:50 PM
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Originally Posted by 99Bluz28
FYI, ws6man29, that Magnaflow has 2.5" outlets, and moeZ28 the fm80 that comes with the cat-back has 3" outlets. You can't buy it from jegs or summit all the fm80's they sell aren't the same, the largest they have are dual 2.5" outlets; not dual 3" outlets.
99bluz you are correct the Magnaflow has an 2.5 outlet compared to the 3 inch out from Flowmaster.This is a quick fix I did myself at my shop.All you need to do is make a sleeve to go over the 2.5 outlet for the tailpipes and tig it and then just slide over your tailpipes and clamp it down and your good to go.I just did this last week and let me tell you the Magnaflow is a way better sounding product and its stainless not galvanized junk.
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Old Jan 16, 2012 | 04:47 PM
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Thanks for the help! I took it to a muffler shop that works with LS1s and he made me an offer on dual exhausts that I couldn't refuse. So, I went with dual exhausts and love the sound/power.
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Old Feb 9, 2012 | 05:01 PM
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Originally Posted by etmateo
Thanks for the help! I took it to a muffler shop that works with LS1s and he made me an offer on dual exhausts that I couldn't refuse. So, I went with dual exhausts and love the sound/power.
Pics of your new duals?
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