Your ECU knows that you dont have cats installed but doesnt throw the code. After I installed my test pipes I used the Cobb AP tuner to check for any issues. The ECU gave an error code, dont remember exactly what it said but essentially said no cats installed but Ive never gotten a CEL.
Ive had my test pipes installed for close to a year now.
BTW signature, Just GOGGLE it?
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Stillen Gen 3 Intake / Invidia Gemini Cat Back / Invidia Test Pipes / Ivey Cobb AP Dyno Tuned 314 rwhp / 5Zigen FN01R-C Hot Version 18" Wheels Matte Black / 15% Tint / Alpine INA-W900BT / JL Audio 10w6 x 2 Stealth Enclosure / Kicker ZX 750.1 Amp / V-LED Blue LED's
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