Originally posted by silvagsr
hey smurf , so you did notice a differece with the header? Ive had people tell me that the header doesnt make that much of a difference... but I dont have any experience on it my self..
I wasn't expecting much with the header. I decided the Type R stock exhaust was pretty good, and I didn't want the car to be loud. So, I went the header option. I chose the DC 4-1 because I wanted the 4-1 design, but didn't want to mess with the modifications to fit the JDM 4-1.
The header made quite a difference. The kick after 5700 rpm was a noticeably bigger. I wasn't expecting that. There were more gains than I expected. The gains from the header were more than I got from the AEM CAI. I also didn't find any low end losses that a lot of people say happens with a 4-1 design. I would recommend getting a header over an exhaust. It's definitely the weak link on the exhaust side of the engine.