I have a 2012 mustang gt all stock except for cobra jet intake mani, frpp intake and twin 60 mm throttle body and Lund tube is been this way for 2 years with no problem all of a sudden last week it started stumbling at wot, it's like I hit a brick wall losing power between 4500 rpms to 5500 only...
i have a 2012 rs1 with 20x9.5 rims wrapped in 275/35zr20 all the way around. I plan on installing a set of bc coilover on my car here soon is there anything else that needs to be installed at the same time to prevent scrubbing and help with the ride?