Earls -5 Male to -4 Male Union Reducer - Stainless Steel - SS991903ERL pre-bent-brake-lines 9 wideband to relay AFR

9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control

8 L6 1968 - 1970 Ford Mustang 200/3

5 V8 1976 Pontiac LeMans 455/7

8 V10 2002 Ford E-550 Econoline Super Duty 415/6

Application 70 Mopar E-Body

Earls -5 Male to -4 Male Union Reducer - Stainless Steel - SS991903ERL pre-bent-brake-lines 9 wideband to relay AFROverview: Stainless Steel Construction. Available for Any Plumbing Situation And Many Custom Applications. Features: Stainless Steel Available for Any Plumbing Situation And Many Custom Applications. Application: Year Make Model Submodel Engine Size Universal Specs: Adapter AN Size ( A ) 5 AN MALE Adapter AN Size ( B ) 4 AN MALE Adapter Type AN Male Union Brand Earls Emission Code 5 Finish Natural Material Stainless Steel Product Line Premium Product