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  Weistec N55 ECU Tune W.1
The Weistec N55 tune provides solid gains through out the entire powerband, with signifigant peak to peak gains as well as large mid range gains! This is on an otherwise 100% stock vehicle, including the air filters! In addition to the performance gains, there are a couple options available for race vehicles. First is the "Burble". The M4 GTS comes from the factory with this in a mild form. You can choose "Off" "Mild" or "Aggressive" for the "Burble". Many seem to prefer aggressive, but we gladly will let you choose based on your preference. The other race vehicle option would be Catalyst Heating. On race vehicles, many times the catalysts are removed. In those cases, there is n...GSP Price:
$799.99

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  Weistec N20/N26 ECU Tune W.1
N20/26 ECU Calibration The N20/26 vehicles are built very stout from the factory and respond beautifully to modifications. While they have great performance right off the show room floor, it is just too hard to leave them untouched. The Weistec N20/26 Tune provides solid gains throughout the entire powerband, with gains of +60WHP* and close to 60WTQ* torque! This is on an otherwise 100% stock vehicle, including the air filters. In addition to the performance gains, there are a couple options available for race vehicles. First is the "Burble". This is best compared to that of the M4 GTS burble which comes from the factory with this in a mild form. You can choose "Off" "Mild" o...GSP Price:
$599.99

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