first of all, thanx for the replie Rich. on a scale from 1-10 i'd say a 5. its not too loud.

anyway, right now im running without any cats, wich brings up the following questions:
1- it took three weeks for the check engine light to come on, why??
2- the 4-1 headers that SR sells have longer pipes before all joining, compared to mine which are relativly short, is it possible that i am empting out(back pressure)???
thanx guys

 

The ecu goes through certain short term and long term tests, so your light doesn't necessarily come on immediately after a change is made.

With a header, pipe, and exhaust... you will be losing some back pressure. However, the low end losses are probably not bad considering the mid and high gains you should be experiencing.

[ September 07, 2002, 03:29 PM: Message edited by: Josh ]

 

thanx for the info man.

 

my CEL came on went off on it's own and came back on a couple days later. about how long will it take to go out again?

current mods:
sr 4-2-1 headers, 59-61mm bbtb, cat-back

 

sometimes, cel comes on when your Oxygewn sensor is going bad. Maybe your running lean also.