RiCeRzz PhEEr mE!!!!!

Finally, I got to add some power to the civic this past thursday. My friend picked up a 4-1 header for like 100 bucks or so. When I autocross the civic was so down on power i really felt bad for it. So I did the header, new O2 sensor, plug change and oil change. Car pretty much didn't know what to do with itself lol, till i reset the ECU, I think now its gettin the idea it CAN go faster. My existing mods are a AEM short ram, and magancore wires, and the damned focuz axle back exhasut I have with the muffin shooter tip. However the header was just the first step, few more months and i'll have a new catlalic converter and thermal R&D catback hehe.

As for the 4-1 header...well i would have rather had the 4-2-1 but again for the price and my situation i couldn't pass it up. Sometimes around 2000-3000 rpms it feels like the car is taking a breath or something before goin up though the RPM band but maybe its just me I dunno, i need to give it some more time yet but overall it did get alot faster which is good (the car gets pissed above 5000). This is truly the best the motor has ever been, however I'm fearing the main seals on the engine are leaking now...eh...never ends. Least I can hold off ricers in a line now muahahahaha.

Does replacing the O2 sensor help a lot?

Originally posted by FourthGenHatch
Does replacing the O2 sensor help a lot?

yes cuz once it starts getting gunked up it wont read the exhaust gases right and it will tell your ecu to either run more rich or lean, causing a loss of power, it should be changed every 60 grand.