Ya im kinda disappointed that i have to cut em up and put in hi flow cats. I was really hoping i could just bolt em right in without welding anything.

 

Actually I have a feeling if you call Dynatech and ask for the high flow cats with piping and flange that come with their Supermaxx set, the section right after the collector with the resonator on the obx kit is the same length and tubing size as the dynatech with the high flow cats I'm almost positive since obx copied the Supermaxx kit almost completely. That's my plan as well, because I'd like some cats in there later on for legal reasons and visual inspections if I get pulled over. Give Dynatech a call and order the cat section of the midpipe if you don't want to get some welded in.

EDIT* Just realized you have an Expy, this would only work with the Harley/Lightning OBX setup also sold on ebay at the moment. Sorry, but having some cats welded in would be really easy for any exhaust shop to do for you really.

 

I've been pondering those OBX headers for my L for a week and decided to buy it yesterday.
The Ebay store sucks as far as returning emails and the obx site is still down, so we'll see how they turn out...

01WhiteL - Good idea on the Dynatech cats, the main reason for buying this exhaust is I want some hi-flows... So you have installed the OBX on your truck?

 

any pics yet???

 

Too bad they don't make them for the 05 and up.

 

OBX is a ricer sport compact brand. Most likely they bought a domestic company's header and copied it. So if it is a good copy it should fit. Otherwise you will have near zero chance of help from OBX if it doesn't fit.

 

Anyone know of a website or contact information for them??