The Boss Frog Miata "Straight Cat" is a great alternative to knocking the center out of your stock Miata catalytic converter, or buying an expensive high-flow Miata catalytic converter. An unrestricted 2-1/2" stainless pipe is coupled with two heavy duty flanges that bolt right up to your Miata exhaust in place of the stock Miata catalytic converter. Two models available for your Miata, the SC1 for '90-'93 Miatas, and the SC2 for '94-'97 Miatas. NOT CARB legal and never will be, therefore legal for offroad race vehicles only!
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