STM Evo 7/8/9 GESi EPA Stainless High Flow Cat Elite 750 Mazda Miata (MX-5) NB lightweight flow-molded carbon fiber composite

lightweight flow-molded carbon fiber composite housing

and all race fuels

8 x Inputs + Dedicated Ignition Switch Input

Coolant Temperature

STM Evo 7/8/9 GESi EPA Stainless High Flow Cat Elite 750 Mazda Miata (MX-5) NB lightweight flow-molded carbon fiber compositeThe STM stainless high flow cat for Evo 7 8 9 features a full stainless steel construction, tig welded in house at STM and utilizes the 85030 GESi GEN1 ultra high output EPA compliant catalytic converter. Bolts right in place of your stock cat and will fit most aftermarket exhausts that keep the stock location for the cat. Both O2 bungs are included as pictured for your factory o2 sensor and and a wideband if you run one, as well as the extra plug if