Paul94Z28

Hey Board,

I have a 94 Z28. I installed edelbrock headers and y-pipe with a high flow cat that runs through the factory I-pipe with a flowmaster muffler.

I am planning on ripping out the stock cat-back and high flow cat and replacing it with a SLP 2OTL from a 96 SS. Can I just have the muffler shop weld on some extra 3" stainless steel to bridge the gap? Any other mods I will have to make to pull this off?

Help appreciated.

Thanks.

EviLBoX

That's all it should take, just a couple feet of 3" pipe welded in.

teke184

that's all you should need, depending on what the shop quotes you for price you may be able to save some $$ by lookin into the S pipe that either tbyrne or thunder racing sells...just a thouht..

Paul94Z28

Hey Teke-

I thought you only needed the s-pipe if you were using a 95-97 dual cat setup to bring it over to the 93-95 cat location.

At any rate, I am goin to get it welded up as soon as the roads are dry.

Thanks for your opinions.

Paul94Z28

I had it installed on the car. I need an s-pipe, so that is the only part still 2.75. The cat and cat-back are 3" now. I was disappointed at first with the sound at idle - really tame compared to the flowmaster. When you get on it, this thing screams - noticeable SOTP power gain. I can't wait to dyno it again!

Thanks for the help fellas!



Here is a pic:
http://mywebpages.comcast.net/plsteepe12/2otl.jpg


Later,

Greasepunk

I'm thinking about getting some edelbrock headers, did you notice a SOTP gain? And do you happen to have the P/N layin around still? Any info on these headers would be greatly appreciated! TIA!

--Tim

Paul94Z28

Hey Greasepunk-

I did notice a good gain with the headers even though I did it backwards. I just replaced my catback now and should have done that before the headers. I bought them used from this board and had them jet hot coated so they look new. I am very happy with them and do hear everyone saying go with long tubes. I did not want to worry about clearance and these headers I could actually afford on my rather constrained budget. Plug access is ok and no burned wires yet - I most likely will replace wires at 100K with the factory set so no buning will take place.

My car dynoed 264/299 on a dynojet with the fipk, headers, 1.6 roller rockers and flowmaster muffler(no catback so pretty choked). I am expecting to get it dynoed again this summer after my hotcam goes in.

Here is my car page if you want to see how they look installed:

http://mywebpages.comcast.net/plsteepe12/camaro.htm

Good Luck,