My Mods:
-Custom Exhaust w/Magnaflow tips
-Catless Downpipe
-Intake
-JB4 Stage 2
-Scoops (if it makes any difference -_-)
I recently beat an Audi s7 .. it was stock obviously.
I'm still not sure how I won.
maybe 135's should be given more credit.
I recently lost to an x6m.. but honestly it was really really close