Exhaust Setup?

Nick02GT

New Member
Apr 29, 2003
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Just ordered the Mac Prochamber mid-pipe that will go with my 2 flowmaster 40series mufflers.

How do you think it'll sound? too loud with no cats? any info appreciated..

thanks.

oh its on a 01 GT.
 
i have heard the flowmasters get really weird sounding without cats. weird in a bad way.... some people have gotten rid of them due to the raspy sound. i hate flowmasters so i wouldn't recomend them to begin with, in any application.
 
Defleshed said:
i have heard the flowmasters get really weird sounding without cats. weird in a bad way.... some people have gotten rid of them due to the raspy sound. i hate flowmasters so i wouldn't recomend them to begin with, in any application.

misinformation. flowmasters an an x-pipe sound gay. That goes for any chambered muffler. Prochamber and h-pipes sound awesome with flowmasters. There aren't many vehicles on the planet that sound better than a 4.6L with flowmasters and a prochamber imo. You'll absolutely love it. Its not real loud at idle but it just adds a deep throaty sound on top of the already throaty chambered muffler sound. The last few days i've been into some street races and had it in 3rd and 4th at high rpms and i tell you it just makes me lose my load everytime :D

kirkyg
 
I have that exhaust setup on my car w/ 3.5" tips and it sounds awesome. It has a deep throaty sound and isn't raspy. I didn't notice much of a performance gain though.
 
Nick02GT said:
any gains with that setup exept for sound?

Sound is about the most you'll gain with the ProChamber. I recall a dyno of one compared to a stock H pipe on the same car and if I remember right it gained about 1 HP or so. Before anyone calls :bs: on me I believe Tim at T&J Performance was the one that furnished that info and those guys know their stuff.

Your combo will sound good, but don't expect much more than that.
 
I've seen about 4 dyno's with flowmasters and a prochamber showing gains of between 7-15hp with no header modifications.

The only t&j dyno i heard about showing what your talking about was on a supercharged car with about everything done to it. You can't just simply compare that to just any stock vehicle.

kirkyg
 
Flowmasters own all in sound , except in off road x pipes though , too raspy for my taste , If you have cats and Xpipe the rasp is not nearly as bad . Just ordered my off road H pipe for my set up , cant wait to see what the full lengths sound like with no cats .