I'm doin a b18c1 swap into my 93 civic HB this month and I don't know which aftermarket catback to shop for; a gsr, since the engine is a gsr, or a civic HB, since the body is a civic HB? Could you guys help me out, thanks.

 

a muffler shop can cut & weld to fit your car. what header are you using? you might want to look into a JDM-R exhaust mani. you will need a 2.5 collector. the piping should be 2.25-2.5 for all motor. 3 for turbos.

 

I'm using the stock JDM header from the GS-R engine right now, later i will put a dcsport 4-2-1 header. So basically your saying i can't buy an aftermarket exhaust sys., i have to have one customized?

 

yes you can get one for your car, jsut get one for yoru exact car, you might need some modification done to the cat though but thats about it, if your lucky itll all bolt up