ZR-1 Net Registry Forums - View Single Post - Anyone ever install Cats on their OBX headers?

Gunny · 04-12-2016

If the OBX collectors are 3" I think you will be more pleased with 3" bullet cats. The shorter the cats, the better and you still may need to shorten the cat on the muffler side when you reduce to the 2-1/2" of the Corsas.

The best setup that I used was to slip joint the cats to the headers and then v-clamp the other end of the cats to the reducer. Very quick & easy to drop the entire exhaust system when needed.

A setup that I was interested in (but never tried) is on Phil's Z ... he used braided stainless connectors to the exhaust pipes. Here's the LINK plus some good pics of the install.

04-12-2016	#5
Gunny Join Date: May 2005 Location: Georgia Mountains Posts: 918	Re: Anyone ever install Cats on their OBX headers? If the OBX collectors are 3" I think you will be more pleased with 3" bullet cats. The shorter the cats, the better and you still may need to shorten the cat on the muffler side when you reduce to the 2-1/2" of the Corsas. The best setup that I used was to slip joint the cats to the headers and then v-clamp the other end of the cats to the reducer. Very quick & easy to drop the entire exhaust system when needed. A setup that I was interested in (but never tried) is on Phil's Z ... he used braided stainless connectors to the exhaust pipes. Here's the LINK plus some good pics of the install.