chelios

so i need a new exhaust. i have a manifold leak and plugged cats. its all stock. found a whole bunch of stuff on ebay that looks good and is cheap

headers from summit
http://www.summitracing.com/parts/SUM-G9036/

y pipe to merge stock y into single 3"
http://cgi.ebay.com/ebaymotors/ws/eB...category=33633

high flow cat
http://cgi.ebay.com/ebaymotors/3-Cat...ht_1895wt_1162

flowmaster 10 knockoff
http://cgi.ebay.com/ebaymotors/1-Cha...Q5fAccessories


and i have a question. there is a small pipe (more like a tube) that connects to my exhaust pipe right after the first cat. it comes down from a red bull can sized thing up near the firewall. what is it?

thanks.

AlanS

That small pipe is for your thermactor, if I read you correctly, it's an air pump that injects air into the exhaust system so the second cat can combust any fuel the first cat missed.

chelios

thanks! when i do my new exhaust with one cat, should this go before or after the cat?

Just call me Sean

iTrader: (1)

If you're going with a single cat then the pipe needs to go before it. It adds oxygen to the exhaust so the cat can burn the fumes.

chelios

thanks

does anyone see anything wrong with this setup? besides the fact i found the cheapest parts possible....