hi didley doodly neighboor, question for you, im gay *** car has to much lag and it takes for ever to get up to 8PSI and i couldnt stand it becaus ei could feel the back pressure, anyways i bought a testpipe and i havent installed it yet but i was just thinking, is my check engine light going to come on? if so how can i make it not come on?

 

what turbo u running i have a 99 si myself with ls/vetec and t3/t4 and it gets up there in a hurry..