Originally Posted by dunluvmeeh
too late now. i gotta start somewhere. it's my first time doing all these mods.
how does the new header sets of the CEL though? how do I fix it without putting back the stock one?
its been more than 2 days now since I cleared the code, and the CEL hasnt come back on yet.
if I decide to swap in an H22A from the 97-98 prelude type S. can I reuse all these mods?
right now I have a magnaflow cat-back, AEM short ram, and this dc sports header
If it isn't throwing a CEL anymore, forget about it.
I don't know what's up with your catalytic converter. Something clanking around shouldn't be the source of your problem. It's a non-mechanical part. The materials in the catalytic converter help with exhaust emissions cleaning. If you do want to replace it, it's going to be expensive to replace it with an OEM catalytic converter. Get an after-market free-flow catalytic converter. It will free up the exhaust gas flow but again, no torque increase, minute amount of HP increase.
Just to give you the down-low if you don't know, the header is a bit more free-flowing on the exhaust side of things. So at low to mid RPMs, there isn't going to be less restriction with your header than you had with your OEM exhaust manifold. So you won't get any HP increase and no torque increase. At high RPMs, there is going to be less restriction so your engine is going to be able to push out exhaust gases a little bit easier. So you are going to get about 3- 5 HP only at the top end. No torque increase.
If you get a different engine, the layout is usually different and you won't be able to re-use the aftermarket parts you have.