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Has anyone had or heard of problems with the B&B Tri-Flo PRT Exhaust System? I recently got this put on by Corvettes of Houston, and it seems like I lost a lot of back pressure and low end torque. There now seems to be a dead spot when taking off fast in first gear. It's like the car hesitates for a second. Also, whenever I let off the gas while in gear I can hear the engine back fireing through the exhaust. I never noticed any problems before when I had the stock TI exhaust on my Z06.

:-?
 

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Although I did have a severe resonance problem with my PRT's, which were replaced by B&B, I have noticed absolutely no loss in power.... 355 RWHP and 369 RWTQ.

The back pressure popping is normal, not just on B&B's, but any aftermarket exhaust, and is somewhat irritating to me. An X-Pipe should help that problem.

Hope you get it straightened out soon. :)
 

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I know people who have B&B and no problem. This is the first I have heard of this condition, not sure it is exhaust related. The popping you are hearing seems to happen on a lot of Z's, it is problably more noticable with the louder exhaust. C4C5speacialist could problably be of help here.
 

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FCalmes is right. The popping is normal for aftermarket exhausts. Had aftermarkets on three C4's and they all popped. Kinda like it myself. Thinkig about an aftermarket on my Z but don't know which one. All the one's I've heard just don't make that much of a difference sound wise. IMO. At least not like the difference aftermarkets made on my C4's.
 

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I have the PRT's on my 02 Z06 and SOTP haven't noticed any problems except my neighbor with a minivan thinks they're too loud:)

Steve
 

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I had PRT's on my '01 Z and never noticed any loss of low end torque from the system itself. I did, however, feel a loss of low end torque when I installed a Bassani off road X-pipe. I think the elimination of the cats along with the free flowing PRT's left too little back pressure. I kept the PRT's and pipe when I traded for the '02. I think I'll just use the rear section of the pipe on the new Z and keep the cats in place.

By the way, the X-pipe will help SOME of the popping and cracking but not all of it.
 

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Guerro said:
Has anyone had or heard of problems with the B&B Tri-Flo PRT Exhaust System? I recently got this put on by Corvettes of Houston, and it seems like I lost a lot of back pressure and low end torque. There now seems to be a dead spot when taking off fast in first gear. It's like the car hesitates for a second. Also, whenever I let off the gas while in gear I can hear the engine back fireing through the exhaust. I never noticed any problems before when I had the stock TI exhaust on my Z06.
I have heard the farting you talk about - I don't like it!
Sounds like it's time for a ECM reprogram or add some back pressure.

Do you know about the washer trick to add back pressure?
Check this out for the theory: http://www.nightrider.com/biketech/exhaust.htm
 

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Roger,
I spoke with Ernie @ BPP and he indicated almost word for word what your link stated. "Peak" and "Usable" horsepower are two different things. That's why they tuned their new long tube header in a step design to help low and mid range torque as well as the big end. They got the best results from their header with the cats removed and the stock TI cat back. I think this is the set up that I'll go with. :cool:
 

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Z06 Tom said:
That's why they tuned their new long tube header in a step design to help low and mid range torque as well as the big end.
My experience with stepped headers is that they only show improvements when the cam is not right. I would rather put the money into the right cam selection.
 
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