OK, I did a search but I didn't find the answer to my question. Here it is... I have a 97 Integra with a USDM Type R exhaust manifold. I plan to buy a test pipe for "off road purposes". Anyway, Omni power has two types. Stock usdm headers, and jdm headers. Is the difference just diameter or are the flanges different? Will the jdm 2.5" work with my type r exhaust manifold? I want the one with the bigger collecter, will it work?

 

Anybody?

 

Email KTeller (sponsor on h/t) He sells omnipower stuff and he can tell you the differences. I think the US one is 15" and the JDM one is 13". I think before the flanges but email him and post up to let the rest of us know. I also believe the diameters are different as the US header is 2.25" and the JDM is 2.5". Someone correct me if I'm wrong. And the JDM header length is longer so you'll need a shorter test pipe if running the JDM header. But one of the Omnipower test pipes is adjustable. It's a 3 piece item that you can slide off the sleeves to accomodate 13" or 15" lengths (not sure if that's prior to the flange or not though)

Good luck!

 

Thanks, thats where I was looking to order it from, Kteller! I will email them and let you know when i find out.

 

my 98 USDM GSR's cat length is ~17.5in - will the Omni Power piece work for me?

 

there is an adjustable omnipower one.... it'll work for most folks