Need a replacement catalytic converter for your 1988 GMC S15? MagnaFlow offers high-quality catalytic converters engineered for 1988 GMC S15 sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1988 GMC S15 requirements and state vehicle registration to buy the best S15 catalytic converter online that fits your '88 S15 and meets your state’s emissions compliance.

Need a 1988 GMC S15 replacement exhaust system? Shop all BRExhaust 1988 GMC S15 Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 1988 GMC S15 OEM exhaust.