By A Mystery Man Writer
991 Turbo - O2 spacers - Does anyone here use O2 spacers in combination with bypass-pipes (without a tune)? If so, does it prevent the CEL from coming on? I have a FVD muffler that I would want to use with bypass pipes but I don
Rennlist Member
Basic Sponsor
Rennlist
Site Sponsor
Soul Performance Products - 991.2 Development Thread - Page 14 - Rennlist - Porsche Discussion Forums
Mini Cat O2 Extenders Rennlist Porsche Discussion Forums, 40% OFF
Those with Catted Downpipe - What do you think of this?
What did you buy your 991 today thread - Page 530 - Rennlist - Porsche Discussion Forums
Mini Cat o2 Extenders - Rennlist - Porsche Discussion Forums
Need Help O2 Sensor Won't Reach New Header - Rennlist - Porsche Discussion Forums
Intake Manifold Spacer - Dyno Mule Needed - Rennlist - Porsche Discussion Forums
Mini Cat O2 Extenders Rennlist Porsche Discussion Forums, 40% OFF
Need Help O2 Sensor Won't Reach New Header - Rennlist - Porsche Discussion Forums
991.2 catless downpipes with integrated o2 spacers - Rennlist - Porsche Discussion Forums
WTS: Used Fabspeed Universal O2 Spacer with Catalytic Converter - Rennlist - Porsche Discussion Forums
Catalytic Converter Replacement - Anyone done it? - Page 2 - Rennlist - Porsche Discussion Forums
Kline 76/70mm (Regular) Exhaust w/ test pipes and o2 spacers - Rennlist - Porsche Discussion Forums