Muffler
#1
Muffler
Hello, I have a 87 Iroc 350 t tops 26,000 orig miles.
I want to change the muffler only. car is all stock. Is the inlet in the muffler 3in and 2.5 out the back.
I know Hawks use to sell that bolt on Cat delete pipe , any one know where I could get one of those. Thanks
I want to change the muffler only. car is all stock. Is the inlet in the muffler 3in and 2.5 out the back.
I know Hawks use to sell that bolt on Cat delete pipe , any one know where I could get one of those. Thanks
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dmccain (10-19-2020)
#5
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Muffler
Agree w/ chazman about the FM. My personal description of the one I had for a few weeks was like a 55 gallon drum on a 10' chain dragging behind the car. It didn't even sound "good" outside the car. It sounded like cold leftover yesterday's BUTT as far as I was concerned. Loud, hollow, blubbery, hilljack, only one step removed from a pickup with a cherry bomb, ... not me at all.
I. COULD. NOT. STAND. IT. I gave it away. I hated it so bad I even felt guilty about trying to get money for it.
Closest you can get to stock is a Walker / Dynomax (same company, 2 brand names). Don't know the PN off the top of my head.
There is absolutely no reason whatsoever to delete the cat. No benefit at all to doing that. On a car with that low of mileage it's a rabbit hole that isn't worth going down.
I. COULD. NOT. STAND. IT. I gave it away. I hated it so bad I even felt guilty about trying to get money for it.
Closest you can get to stock is a Walker / Dynomax (same company, 2 brand names). Don't know the PN off the top of my head.
There is absolutely no reason whatsoever to delete the cat. No benefit at all to doing that. On a car with that low of mileage it's a rabbit hole that isn't worth going down.
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T.L. (10-03-2020)
#7
Re: Muffler
DO NOT USE FM!!! I have a 92 Formula 350 with Hooker headers and 3" exhaust going into a FM 40 and I HATE THE SOUND!! It sounds almost stock. Go with a magna flow or spintech you will like the Mello deep rumble it gives. Listen on youtube to find what you want.
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MARKT111 (11-11-2020)
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: Muffler
Lookup my video of a Flowmaster 80 series on YouTube and see for yourself if you like the Flowmaster sound on my Thirdgen. I personally think it sounds great. "dmccain" on you-tube or "dmccain2"
#11
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Re: Muffler
I've had quite a range of mufflers on my thirdgens over the years. The FM 80 wasn't the greatest. It's decent enough if you're just changing the muffler/tips but I wouldn't do it again. The muffler I really enjoyed was my Spintech/Mufflex setup or my SLP LM with a Powerstick chambered muffler. Sounded great on my 383. If you're just looking for some grumble/tone then the Magnaflow is probably for you.
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Car: 88 T/A, 91 Formula, 94 Firehawk
Engine: 400 Pontiac, 5.0 TPI, 5.7 LT1
Transmission: 700R4, T5, T56
Axle/Gears: 4.10, 3.42, 3.42
Re: Muffler
The Flowmaster is like a woman or a fine wine, it’s an acquired taste
I can understand why so many don’t like it but I have one on my 88 Trans Am that’s been on there since late 90’s. Had it with the SBC and the Pontiac engine now. I truly love the sound of it. Shorty headers on both engines, 3” no cat. If only I knew how to post a video clip lol
I can understand why so many don’t like it but I have one on my 88 Trans Am that’s been on there since late 90’s. Had it with the SBC and the Pontiac engine now. I truly love the sound of it. Shorty headers on both engines, 3” no cat. If only I knew how to post a video clip lol
#13
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Re: Muffler
Or of course, one of those evenings with a fine and willing partner of the sex you desire, and a wine that's $3.99 a bottle, is better than one that's $399 a bottle that the partner in question GAGS on.
Price in many situations is NOT an indication of how much satisfaction you will receive. Mufflers are like women (or men, for some of you out there): what it costs is INNO WAY correlated to how much you'll like or enjoy it.
I HATED my Blowmaster. Buttt, exhausts, and their sounds, is a deeply personal matter. Anybody here can only offer what THEY felt or thought, within THEIR preferences.
Price in many situations is NOT an indication of how much satisfaction you will receive. Mufflers are like women (or men, for some of you out there): what it costs is INNO WAY correlated to how much you'll like or enjoy it.
I HATED my Blowmaster. Buttt, exhausts, and their sounds, is a deeply personal matter. Anybody here can only offer what THEY felt or thought, within THEIR preferences.
Last edited by sofakingdom; 10-04-2020 at 06:51 PM.
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Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: Muffler
If we are using women analogies....
The FM is like the woman who seems attractive at 2:00 AM, after an evening bender which ends in Yagermeister shots, and 2 hours later when enough ETOH has been eliminated, you think OMG ! What have I done!
The FM is like the woman who seems attractive at 2:00 AM, after an evening bender which ends in Yagermeister shots, and 2 hours later when enough ETOH has been eliminated, you think OMG ! What have I done!
#16
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Car: 89' Firebird
Engine: 3.4L V-6
Transmission: 700-R4
Axle/Gears: Whatever came stock!
Re: Muffler
Flowmaster is loud and raspy. I hate it.
I had one on my V-6 and it rotted out so fast as well...now there's one from the PO on my TPI car and it is ridiculously loud and I believe its rotting as well.....you can tell because the sound changes and theres some rattling...I can't wait to replace it.
I had one on my V-6 and it rotted out so fast as well...now there's one from the PO on my TPI car and it is ridiculously loud and I believe its rotting as well.....you can tell because the sound changes and theres some rattling...I can't wait to replace it.
#17
Supreme Member
Re: Muffler
I agree on FM, they are terrible. I have tried to add a resonator to take out some of the drone and rasp but the only solution is getting rid of it
#18
Senior Member
Re: Muffler
I have the Magnaflow on mine. It is about 15 years old, sounds great. Louder than when it was new. Not too bad just going down the road but at WOT is is loud AF. After all, at WOT don't we want loud AF?
#19
Re: Muffler
if the car is all stock, and you want to keep it stock, just get a Walker brand. Its just OEM replacement.
As far as aftermarket tho...i had a FM for about 10 years before i got rid of it for rotting (and bursting from backfiring after my fuel pump went). I have a Dynomax on my truck and so far i like it. It has been on for a few years now and no sign of rust on the actual muffler. on my T/A now i have a SLP loudmouth with a borla muffler, which i enjoy.
As far as aftermarket tho...i had a FM for about 10 years before i got rid of it for rotting (and bursting from backfiring after my fuel pump went). I have a Dynomax on my truck and so far i like it. It has been on for a few years now and no sign of rust on the actual muffler. on my T/A now i have a SLP loudmouth with a borla muffler, which i enjoy.
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