New Caprice - Discussion forums

I put a 2.5 x pipe on after the JBA connection pipes and took an L99 Vert Camaro system into the muffler shop, i used square stock from work and hose clamps to wedge the butterfly valve in the bends around the diff on with same 2.5 cutouts and stock mufflers,,, Didnt go any faster, sounds better tho...

Another 1/4 track day! Tried a couple different things today. I had my 2.25 x pipe and 2" stock pipe replaced for 2.5 x & Camaro exhaust. I did wedge the butterfly valves open. I was also messing with drive vs low. My MPHs are well in range of 6k RPM but the car shifts like 90 feet b4 the l...

Ive been running it all year, best to get a used 1 for 1/2 price imo

Yea!! The up bend after the x pipe that clears that super thin cross brace measures 1.98 OD on mine too. Im on the hunt for camaro exhaust now. 2.25 my ass

What ever these are, are they restrictive??

Not stock cats, i have the JBA catted connection pipes. They meet the 3 inch primary off the header and at some point come down to 2.5 inch. I still have the pup cats on near the diff though

So i ran 13.57 thru the mufflers and a 13.45 thru the cutouts. I thought the difference would be bigger. Maybe the exhaust is to small b4 the mufflers

Ok, so stock the car was 9.05 to ~9.35 So when it was within 100 of 0 DA, i ran 8.75s. I assume the work lowered it ~.3 and the average was 8.9. In July ihad a 2.25 x pipe put on. Went to the track and was 85*-90* lol terrible air for me, 2400 - 3400 DA but ran 8.9 to 9.1, so i think the x pipe lowe...

I’ve read a lot of Vizard’s articles and he indicates that 2.25” pipes are good for up to about 415 HP without being a restriction. 2.5” should be good for up to 514 HP. I’d guess that 2.25” pipes are probably going to be a little small for you, but no idea if going bigger will get you 5+ HP. Wtf a...

I’ve read a lot of Vizard’s articles and he indicates that 2.25” pipes are good for up to about 415 HP without being a restriction. 2.5” should be good for up to 514 HP. I’d guess that 2.25” pipes are probably going to be a little small for you, but no idea if going bigger will get you 5+ HP. Wtf a...