Which x pipe?
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Instructor
Joined: Nov 2011
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From: Bloomington MN
Which x pipe?
I have the Borla Challenge system on my 91 ZR-1. I'm looking at replacing the resonator with an x pipe. Can anyone who has done this tell me which one you used and post pics if you can?
Race Director
Joined: Dec 1999
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From: Alexandria, Virginia, USA VA
Le Mans Master
Joined: Oct 2004
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From: South-central Missouri
The design of the one Stainless Works, and others that have have copied it, was developed by a Al Dashto and Pete Polatsidis and resulted in a substantial increase in RWHP over simply installing a crossover.
It differs from an "X" pipe in that the parallel tubes come together to "kiss" before dividing to return to parallel config.
Where the two parallel pipes come together, there is a window in the pipe walls that allows a certain amount of crossover, without actually altering the direction of the flow substantially. (Practically ALL of the FBI cars have those crossovers.)
It differs from an "X" pipe in that the parallel tubes come together to "kiss" before dividing to return to parallel config.
Where the two parallel pipes come together, there is a window in the pipe walls that allows a certain amount of crossover, without actually altering the direction of the flow substantially. (Practically ALL of the FBI cars have those crossovers.)
Le Mans Master
Joined: Sep 2000
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From: Bartlett IL
If u get the Stainless Xpipe, make sure they don't send u the one w the "cheese grater" baffling. Its used to cut down on resonance, but it does that by impeding air flow. Removing the resonator w bring more drone into the cabin. You can mitigate that in a few ways, but it will be louder.
