test pipe on 99 SI
 

hi didley doodly neighboor, question for you, im gay ass 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?

Re:test pipe on 99 SI
 

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

Re:test pipe on 99 SI
 

you need a o2 killer for for your str8 pipe
http://mkiv.com/techarticles/oxygen_sensor_simulator/
or
http://www.importparts.com/importpar.../View/ECG&2D28

Re:test pipe on 99 SI
 

itll take a while for the cel to come on...i have obd2 as well with no cat and sometimes it takes weeks