A downpipe or cat delete will usually wake up the rear O2 sensor and trip a check engine light. RVNG O2 Spacers move that sensor slightly out of the exhaust stream so its readings stay in range and the light stays off. Each one is checked for defects before shipping.They're effective on 100% of twin-turbo vehicles and about 85% of single-turbo cars — depending on tune and setup, a single-turbo car can still throw a code.Effectiveness Twin-turbo vehicles — effective in essentially all cases Single-turbo vehicles — effective in roughly 85% of cases Emissions disclaimer: This product is not legal for sale or use on pollution-controlled vehicles operated on public roads and is intended for off-road, race, or closed-course competition use only. You are responsible for compliance with all applicable emissions laws; use on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws. Please check your local laws before purchase and installation.Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email [email protected].
