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Pampered-Z · 12-17-2010, 02:38 PM

I had a Borla version of that. Borla Y-pipe with highflow cat. The studs in the stock manifolds weren't long enough to pass through the flanges because the larger pipes put the flanges futher down the pipes. So I needed longer studs, and of course, the studs broke so I had to drill them out. Didn't see any change at the strip as far as a real power gain, but it did make the car slightly louder/deeper then stock.

12-17-2010, 02:38 PM	#3
Pampered-Z Sliderule / Moderator Join Date: Oct 2004 Location: Catawissa PA Posts: 2,294 iTrader: (1)	I had a Borla version of that. Borla Y-pipe with highflow cat. The studs in the stock manifolds weren't long enough to pass through the flanges because the larger pipes put the flanges futher down the pipes. So I needed longer studs, and of course, the studs broke so I had to drill them out. Didn't see any change at the strip as far as a real power gain, but it did make the car slightly louder/deeper then stock. __________________ 93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada 1) Build it 2) Race it 3) Break it 4) Repeat!!!