5.0

Red370

Magnaflow muffler deletes... less than $300, Pypes also makes a set for less than $250 on americanmuscle. Cold start will wake the neighbors, tame at idle (you can turn the idle up with the SCT tuner), melts faces at full throttle. BTW, get the tune man, the TQ gain down low and the mid to high range hp are ludicrous. According to Chris Young at AM, the JLT/Airrade provide the biggest gains of all the CAI's. I was at my current HP level with just the intake/h-pipe, decided not to go with an x because they are MEGA raspy, moreso than my Stillen/Berk combo on my Z.

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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs