I just in stalled my header and high flow cat yesterday on my d15b7 and everything went smoothly (cc dc sports and a Engine Dynamics high flow)
Well, last night the women and I went out to eat and I drove the Honda. got to a light near my house and proceeded to go in first gear when it started studdering abd jumping like crazy!!!! This lasted for all of 5 min then stopped. Is my car just going through the growning pains of a non restrictive exhaust or what?

 

ur o2 hooked up rite to the header? hooked up at all?

 

ya its hooked up properly

 

maybe there's something blocking in ur cat...didnt the cat come in a box with them soft styrofoam thingies? or u bought it at a store? sorry but without really being there looking/driving ur car im not much of a help

 

I remember reading a post on this problem before. Don't remember if the problem was resolved cuz I lost track of that thread...I'd like to see if anyone remember which one I'm referring to...er...maybe someone'll give ya some help. Good luck.

 

it could be leaking around the exaust manifold...did you geta new exaust manifold gasket?? that could be it...

 

I found that thread, but it's a dead end no one ever really helped it out. Just So you know your not the only one here... https://honda-tech.com/zerothread?id=221410

 

I'm still interested in a solution to your problem so I'll bump ya.

 

thanx man
hasnt returned yet so im still looking good

 

i ran a little lean after a header and intake install..but, upgrading the gas one level solved that problem