Hey guys. I bought OBX Racing Sports Header with down pipe on eBay for my 2003 Mitsubishi Lancer OZ Rally was supposed to be 4-1 header but for some reason i received 4-2-1 header with down pipe. any opinions on 4-2-1 header vs 4-1 header?

 

Works fine for me

 

hello, im no specialist, but a 4-1 header is more for higher rpms, and seems to give you a bit more power up there. i personally like the 4-2-1 header much better because im not running at 7000k rpm around town/highways. a 4-2-1 header gives you the power low-mid rpm ranges, but some say that it takes a little power away from the higher rpm range and gives it to the lower-mid ranges. but try it out for yourself and see. im looking into getting thr srs header, all the way back. looking forward to it! good luck