Fits 2011-2017 Mustang 5.0 & 3.7L Rear O2 Extensions- 12In (Pair)-1110 quick-fuel-technology 9 V8 1971 - 1974

9 V8 1971 - 1974 American Motors Javelin 258/4

6 V8 1976 Pontiac Catalina Safari 400/6

4L V8 1985 - 1986 GMC K1500 High Sierra 379/6

5 V8 1970 - 1973 Chevrolet Bel Air 454/7

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49703

Fits 2011-2017 Mustang 5.0 & 3.7L Rear O2 Extensions- 12In (Pair)-1110 quick-fuel-technology 9 V8 1971 - 19742011 17 MUSTANG 5. 0 & 3. 7L REAR O2 EXTENSIONS 12IN (PAIR) BBK Performance oxygen sensor extensions feature OEM Factory connectors on the end of the wiring to allow simple plug in installation to the factory wire harness. The extension wires are covered with a heat protective sleeve for maximum protection. Features: BBK O2 extensions use OEM connectors and heat protective sleeves make installation a snap. Some connectors may require the small