MIL.SPEC True 3" 100-cell Catalytic Converter
These cats flow 75% more than an OEM cat and 50% more than an aftermarket 3" ceramic cat.
Outflow ANY cat in the market and get the highest flowing cat around. Period. If you are tired of that test pipe smell, you want to help save the trees or you're racing in the Redline Time Attack Street Class then THIS CAT IS FOR YOU! Manufactured in an ISO/TS 16949:2002 accredited facility, the quality of these race cats is second-to-none. Our cats are constructed of 304SS tubing. The pieces are made ENTIRELY in the USA. That means no foreign-made quality control issues!
THIS PART MAY NOT BE USED IN VEHICLES USING PUBLIC HIGHWAYS. THIS PART IS FOR USE ONLY IN COMPETITION RACING VEHICLES. ANY USE OF THIS PART IN ANY OTHER VEHICLE OR FOR ANY OTHER PURPOSE MAY SUBJECT YOU TO FINES AND PENALTIES FOR VIOLATION OF FEDERAL AND/OR STATE LAW, WILL VOID ANY WARRANTY FROM MODERN AUTOMOTIVE PERFORMANCE AND MAY VOID YOUR VEHICLE'S WARRANTY.
It is your responsibility to comply with all applicable federal, state and/or local laws relating to the use of this part. Modern Automotive Performance hereby makes no representation or warranty as to the compliance of this part with federal, state and/or laws and disclaims any liability resulting from the failure to use this part in compliance with all applicable federal, state and/or local laws.
I know this Mil-Spec cat is next best thing to test-pipe (not legal for street), I sourced at least 5 of these units so far, and one was failed (internal structure collapsed and block the exhaust) at EVO IX GSR. I saw the pictures to MAP so that they can discuss this with Mil-Spec, and they said this was first time to see this kind of failure. They asked about the conditions of the car, and it was stock turbo/stock engine/stock boost level, so nothing was out of ordinary.
They sent me two replacements (because one of the two units I bought together failed), and they even covered international shipping for me!
I had a strong belief in Mil-spec, but now I can say I can buy theirs with great confidence all the time! Highly recommended!