Yonaka Motorsports headers for all B-Series motors featuring 1 5/8" pipes with 2.5" collector flange. This is an aftermarket header, designed for the JDM 1998+ Integra Type R B18C engine. It has all the fitments for the OEM upper and lower headshields. This header is identical to the JDM Honda Integra Type R except ours comes painted black or polished (unlike the unpolished, rusty one from the factory piece). This header is made of mild steel with a flat black finish or polished finish.