Does anyone know if I can get a cat delete pipe that will work with my 4" mbrp cat back and factory downpipe? If i can get around changing the downpipe i'd like to because ive heard its a pain.
The mating surface at the DP could cause you issues. It's worth a shot at worst the cat delete will not fit well and you have to order the MBRP DP to make it all work. If you can operate a sawzall the OEM DP will come out easily.