Looking more into the 40 series flowmaster mufflers, but i cant remember what size offset and inlet. i dont know if its 2.5" or 2" i know its not 3". This is for my 03 GP GT
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05-10-2011
Looking more into the 40 series flowmaster mufflers, but i cant remember what size offset and inlet. i dont know if its 2.5" or 2" i know its not 3". This is for my 03 GP GT
05-10-2011
2.25"
05-10-2011
flowmasters are gunna drone like a mother fugger just so you know, I willling to bet your gunna hate it after a while.
05-10-2011
I've got Flowmaster super 44's on my GP GTP and it sounds pretty sweet and the drone you kinda forget aboutOriginally Posted by Fivefingerdeathpunch
05-10-2011
The 40 series are a chambered muffler and sound like junk on these cars. Leave those to the V8's.
I'd go with a Magnaflow or something not chambered. There are tons of threads on this subject here and will give you a good idea of what sounds good and what doesn't. Some people also remove the resonator and stick a glasspack in place and leave the stock muffs on.
05-10-2011
+1.. I had 40 series on my last GTP and my mustang.. sounded great on the stang but the drone was pretty bad on the GTP.. but yes 2.25 on the exaust.. I'm looking at goin with Borla on my new GTP.. a buddy of mine has them and they sound nice.
05-10-2011
X2 on Borla. They sound great
05-10-2011
YouTube - 2002 Grand Prix GTP with Flowmasters
heres a vid of a SC 3800 GP with flowmaster super 44's and borla exhaust tips.
05-11-2011
stick with a 'turbo' style muffler. keep the exhaust mellow sounding.
05-11-2011
I guess I'll have to check the magnaflows out. I thought
The 40 series sounded pretty good on this one GT , but im open to anything
05-11-2011
40 series is legit, i have it on my 05 gp, sometimes it gets annoyign from the loudness but that usually wen im hungover haha
05-11-2011
I'd go with magnaflows. I had the clambered xl turbos from magnaflow on my gtp and I went through three sets in a year. I put on magnaflows straight throughs and they are a little bit quieter, have less than half the drone and will not go bad. they sound super smooth and don't shake the car when you're hungover
05-11-2011
YouTube - 2001 Pontiac Grand Prix GT w/Flowmaster 40 series mufflers
this video fo this 01 GT got me the idea to use 40 series, which i think sounds good here.
05-11-2011
YouTube - 1997 Grand Prix GT w/ magnaflow mufflers
and heres a GT with the Magnaflows. I like them both actually now i just have to make the decsision on which one
05-11-2011
Lol... been there on that. I had my resonator cut too.... after a few months I was like FFFFF THIS!! And then put a 24" glasspack on. I'm gonna redo my exhaust some day. Maybe when I do my top swap.
05-12-2011
I have flowmasters 44 on my 98 gtp with the 3inch downpipe and the cat and it sounds good with some drone but with some trunk sound dampining it should be ok.
The drone really isnt that bad with 44s and no sound dampining. I have my 1month year old boy in the back and he falls right asleep with no problem.haha
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