Flowmaster 40 series

**SerenityGTO** · 05-10-2011

Originally Posted by Fivefingerdeathpunch

flowmasters are gunna drone like a mother fugger just so you know, I willling to bet your gunna hate it after a while.

I've got Flowmaster super 44's on my GP GTP and it sounds pretty sweet and the drone you kinda forget about

**FordMan77** · 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.

**SuperCharged0nE** · 05-10-2011

Originally Posted by FordMan77

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.

+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.

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