2014 Focus ST w/ JSTUNED E30 Tune Comparison
We had the opportunity to replace a customer's custom E30 E-Tune with our own version of an E30 Tune using our in house dyno for comparison. The car only picked up a few peak WHP, but over 30 lbs of...
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The JST Performance 2015 Mustang Ecoboost
As we all know, the Ecoboost Mustang has the potential to be a really fast straight line car with a few modifications and a tune. However, the JST Performance Mustang was purchased for more than just straight line performance. We...
The JST Performance 2015 Focus ST
We originally purchased our 2015 Focus ST to be a top contender as a national level autocross prospect. It was our intention to build the car to fit in the SCCA stock autocross classing, however, since then the car has...