JST Results/Blog

We have been asked numerous times about our set-up on the Time Attack FoST over the past several months as she has shown that she has the capabilities to be one of the fastest Focus ST's to date. I figured,...

Well guys, i guess the question of " is over 300whp possible on the stock turbo on a Focus ST?" has been answered. These pulls were done in our 2015 Focus ST Time Attack Car. The same car that has...

Some pretty sweet results from Jose Chino's Stage 2 Focus ST. This car has just very basic modifications including a CP-E Intake, NGK 1 step colder spark plugs, JST Performance intercooler kit, a preloaded wastegate actuator and of course a...

Finished up our Mountune B4 package Stage 1 #focusrs dyno tune earlier today via #cobb #accessport...here are the results as promised...350 whp/411 wtq on our dyno!

We were able to put Jason Smith's 2016 Ford Focus RS on our dyno earlier this week! Here are the results! Modifications:-Custom dyno tune from Brian Tyson at JST Performance via Cobb Accessport-Mountune Intake, Charge pipes, Bypass Valve-Turbosmart 10 psi...

As many of you well know by now, we have retired our first time attack Focus ST. This isn't because she performed poorly or against our expectations, but rather because we felt it was time to step the game up...

We picked up 52 whp and 58 wtq with our JSTuned Custom Stage 1 dyno tune on this amazing Focus RS! She feels like a completely different car with just a few modifications! Mods- Air Filter, Spark Plugs, AP and...

Something new in the shop this week at JST Performance. Joe Holcomb from Atlanta,GA made the drive down to our shop in his brand new 2016 Ford Focus RS to have a Cobb Accessport installed and a custom dyno tune...

Thanks Corey for letting us custom tune your Fiesta ST!We came up with 208 whp and 275 wtq on our dyno! Modifications:COBB Acessport, JST Custom Stage 2 Tune on 93 OctaneMishimoto IntercoolerMishimoto oil catch can