FreePenguin
Well-Known Member
i jumped from stage 1 to stage 2 without changing air filter/intake. They also say stock exhaust or catback, since my car has active exhaust with no resonator i figured it was acceptable. Weird i just noticed all stage 3 maps have been removed from cobb website. I still have stage 3 on my AP but i dont plan on a DP and would prob go pro tune before then anyway
read this on.
https://www.mustang6g.com/forums/threads/more-downpipe-troubles.158493/page-5#post-3228951
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