Need a replacement catalytic converter for your 1991 Toyota 4Runner? MagnaFlow offers high-quality catalytic converters engineered for 1991 Toyota 4Runner sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1991 Toyota 4Runner requirements and state vehicle registration to buy the best 4Runner catalytic converter online that fits your '91 4Runner and meets your state’s emissions compliance.

Need a 1991 Toyota 4Runner replacement exhaust system? Shop all BRExhaust 1991 Toyota 4Runner Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 1991 Toyota 4Runner OEM exhaust.