ssidekickbp

Sorry from the start of this sounds dumb guys but I figured ask. I'm just now looking at different header systems as I would like long tubes and an x-pipe but want to keep my stock NPP cat backs.

What size do I need to connect it all to the stock cat-back? I'm mainly looking at Borla options. Any info would help me as I'm new to modding my C7.

Higgs Boson

American Racing Headers if you want to spend more for American made quality product. I used to run ARH.

Texas Speed longtubes if you want a bargain and still not have a piece of crap. I currently run TSP.

Forget the rest.

1 7/8 is best all around size.

officermartinez

Great advise from Higgs Boson.. Personally, I use the 1 7/8" American Racing Long Tube Headers on my C7 with my NPP as well. Sounds wonderful!

ssidekickbp

Thanks. So those will run all the way back to the stock cat backs?

sycraft

Texas Speed Headers here too, fit great and sound amazing

Higgs Boson

yes, any of them will fit the stock cat-back.

thrilled

I have always heard that 1+3/4 was the best size if you don't do anything more than headers and COA.If you might want to do A cam,supercharger and other thinks then go with 1+7/8.
I'm just going by what I read on the forum.

marcouvo

I would call up ARH and discuss your situation/goals with them, because they make both 1-3/4" and 1-7/8" full length headers. For me, since I'm a hopeless Torque addict, I'd go for the 1-3/4".

TON C7S

Kooks headers are #1 in my book.

Jason 98 TA

I will easily put tsp headers against any header available. The extra long primaries make awesome torque gains that's hard to pass up compared to typical long tube designs. The 17/8" versions are in stock and 2" is in final stage of development!

T/A KID

TSP here and they work amazing

Elite275

TSP here and love them as well.

sycraft

no disappointments here- sound freakin amazing too.