So, just last week we threw a lot of time and money into the integra.... First, we got the NGK iridium spark plugs installed, and then we did the Royal Purple oil change with a K&N oil filter and did an side-exit exhaust cutout, and for some AWESOME reason, the header we ordered came in in ONLY 2 DAYS! We were just about to head out to our local hangout spot and spot for some ricer cars to laugh at, and then the UPS truck came down the street, the second I saw it, I was like, uh-oh! And then it stopped right in front of us and the guy came out and handed us a box. Our buddy was with us and he was like, what's that? A header and cat-delete combo! So we then sacrificed our hangout time to install the header all through the darkness of the night... We finally got it all bolted up, but for some reason we forgot to tighten the bolts connecting the top header piece to the downpipe, so when we headed out, it had a huge exhaust leak and ran really bad... But we got it all better over the weekend, for our trip up to the mountains for camping, and boy did we have fun tackling those mountain corners! Even on stock suspension, this thing stuck hella good! We didn't get the cat-delete installed because of time issues and because we couldn't do it on our driveway very well, the bolts were all too tight. But just the header produced a massively noticeable power increase towards the high rpms...