Best headers for stock vtir

[DC2-PWR]

Thanks for that man. So what you're saying is that i cant fit the JDM 4-1 headers to my ITR exhaust due to the different size cats? So even if i did get another aftermarket header like skunk2 alpha, RMF, PLM, it still wouldnt fit with my ITR exhaust unless i change the cat?

Think about it, JDM DC2R's had - JDM 4-1 bolt onto JDM ITR Exhaust. AUDM DC2'Rs had - AUDM 4-1 bolt onto AUDM ITR Exhaust. They are both different in lenth and diameters. (Check out the thread TGW92 posted up and see comparison)

Aftermarket header would be best with aftermarket hiflow cat (What most people do). But if you want to get achieve the best preformance you will then have to change the exhaust. Thats upto you though on what you plan to do