Got an appointment in 1/2 hour to put 2/2 chamber Flowmasters on mine. Had them on my '99 L and I miss the rumble. If I remember right the passenger side one was offset-inlet,center-outlet and the drivers side one was center-inlet,center-outlet. They fit in there by putting them at an angle on their side like so: // . I'll confirm this later when I get back. As far as a single Flow w/dual in, dual out one member tried it and it made a loud blowing noise under WOT. Best to use 2.

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Red '00 Lightning,
Adopted 4/19/00,
PSP Filter,
Track time pending...

 

The guy that made my appointment didn't know they were out of one of them and I didn't leave my phone number so I wasted a couple hours. Remade my appointment for tuesday. BTW, he did confirm the use of one offset-in, center-out and one center-in, center-out muffler(2.5").

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Red '00 Lightning,
Adopted 4/19/00,
PSP Filter,
Track time pending...

 

Stopped by the exhaust shop on the way home tonight. I wanted to find out what he is putting on Bolts. I asked about Bassani, Borla and Flowmasters. I also asked about using two Flowmasters. The recommendation I got was to use a Magnaflow 2/2 with 3” from the cats back. This guy has done several of my trucks so I trust what he tells me. I had him put the same thing on my last truck and it sounded sweet. He also does a lot of Vipers. People bring them from all over the place to get them done. I don’t know what he puts on them but the Viper guys love him for his work. 2 cents worth
http://www.magnaflow.com/

 

I am wanting to improve the sound of my truck. I am thinking of getting just a flowmaster muffler (not the cat back). I have noticed everyone saying that you don't see much of an improvement from the full setup.

Would two singl in single out be better than on dual in dual out?



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2000 Black Lightning
PSP Air Filter Kit
PSP Computer Chip
MPulse Lo-Pro Bed Cover
Chrome SVT Wheels
Pumpin Stereo

 

What about gibson exhaust. I know they dont make a dual inlet muffler, but the guy at gibson said if you Y the pipe directly before the muffler, that it would sound great. I have heard quite a few gibson exhaust systems on trucks and they sound great!

 

Question: There has been some discussion about the merits of aftermarket exhaust.

What I was curious about is if any of you who have replaced the stock (log) manifolds with aftermarket headers have any access to a flowbench to see what the stock manifolds will flow. Granted a good equal length design may have more scavenging, but I was curious about raw flow numbers.

Has anyone done this? Or would anyone that has a set be willing to for the sake of information exchange (and to settle the debate once and for all)?