Originally posted by dgodard:
Hi guys, if i remove main cat will CEL appear?




No...but believe me, if/when you remove it, you'll regret it forever b(sounds like total ass). Put a high flow unit in it's plece and you should be ok.

As far a performence, with my test pipe installed the car seems to breath much easier up top, however i have no dyno graps to back this up. I only run my test pipie on track days as I hate the way it makes the car sound.


99 SE V6\5spd - 156 HP\157 TQ 15.166-90.84 Totaled 02/12/06 99 SVT # 1571 - 175 HP\153 TQ 14.999-91.88 Born 3/24/99 Reborn 3/18/06 Pietenpol Racing Technologies project vehicle 90 Festiva L 5spd, Blue(not for long), 103k