Did you have anything remapped to accomodate the K&N or Magnaflow? Do you think the PCM upgrade helped get some performance out of those items?
I saw a car restoration program (wheeler dealers, UK show) where they added several items such as intake and exhaust to an Impreza (IIRC) and it downgraded the original bhp until it was remapped.
2011 Jeep Compass North 4x4 Cherry Red
Options: OWL tires, Sun & Sound, North All-Season
Extras: Magellan GPS, Hidden Hitch Class II, iPAD 2
Traded for '13 Ford Edge
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