Best Sellers

FREE JSTUNED Decal, JSTUNED Colorblock Decal, Team JST Printed Decal, Team JST Decal, Team JST Lanyard, or JSTUNED Keychain with Custom Tune Purcha...

FREE Decal or Keychain with Custom Tune Purchase! Discount will be applied during checkout, just add your swag item of choice to the cart along wit...

Vinyl Windshield Banner specially sized for the Fiesta ST and Focus ST/RS Banners sell out very quickly and may require 1-2 weeks special processin...

Click Here for our Turbo Recommendations Blog Product Highlights: - Stock Location, Direct Bolt-on - Internally Wastegated - Built-in external wast...

Gain a prominent advantage over the competition with the MFactory Helical Limited Slip Differential. Through the smooth and constant distribution o...

TB Performance products are custom built to order, please allow 1-2 weeks for shipment. Born from months of design and redesign, the Torque Gusset ...

The BNR ST67 Turbocharger option is really the best option for stock fuel system and stock block cars.  It has enough air flow for 400-420 WHP with...

We thought we would make it easier for our newest customers to upgrade their Focus ST's by introducing our best selling products now in a package! ...

Product Details The Damond Motorsports Oil Catch Can kits come with everything needed for an optimized Oil Catch Can system. An oil catch can is, ...

The BNR ST71 turbocharger upgrade is intended for cars with auxiliary fuel systems!  This turbo is good for up to around 500 WHP.   This upgrade ta...

*ADJUSTABLE CONTROL ARMS* These fully adjustable Upper Control Arms transform your performance vehicle from sluggish, non-responsive handling to hi...

FREE JSTUNED Decal, JSTUNED Colorblock Decal, Team JST Printed Decal, Team JST Decal, or JSTUNED Keychain with Custom Tune Purchase! Discount will ...

After months of engineering and development, cp-e™ is proud to release the Lightweight ΔCore Front Mount Intercooler for the Focus ST. The stock in...

FA Coilovers are custom built to order, please allow 3-4 weeks for items to ship. Generation 8 is here, new features include: High Flow Digressive™...

Cobb 13+ Ford Focus ST/RS Air Filter

FREE Decal or Keychain with Custom Tune Purchase! Discount will be applied during checkout, just add your swag item of choice to the cart along wit...

Product Details Looking to plant power to the ground, reduce drivetrain slop, drastically lessen wheel hop, all while adding minimal NVH? Look no ...

Even MORE EXPLOSIVE POWER through Garrett Gen2 technology to the popular direct drop-in upgrade turbo for the 2.0L EcoBoost Ford Focus ST. New feat...

Click Here for our Turbo Recommendations Blog Product Highlights: - Stock Location, Direct Bolt-on - Internally Wastegated - Built-in external wast...

 The Garrett PowerMax™ Stage 1 turbocharger upgrade for the 2013 – 2018 2.0L Ford EcoBoost engine platform is engineered to increase engine perform...

Product Details Looking to plant power to the ground, reduce drivetrain slop, drastically lessen wheel hop, all while adding minimal NVH? Look no ...

Click Here for our Turbo Recommendations Blog Product Highlights:  - Stock Location, Direct Bolt-on - Internally Wastegated- Built-in external wast...

We thought we would make it easier for our newest customers to upgrade their Focus RS's by introducing our best selling products now in a package! ...

FREE JSTUNED Decal, JSTUNED Colorblock Decal, Team JST Printed Decal, Team JST Decal, or JSTUNED Keychain with Custom Tune Purchase! Discount will ...

fifteen52 Turbomac 18x8.5 5x108 42mm ET 63.4mm Center Bore Wheel

fifteen52 Tarmac 18x8.5 5x108 42mm ET 63.4mm Center Bore Rally Wheel

Click Here for our Turbo Recommendations Blog Product Highlights:  - Stock Location, Direct Bolt-on - Internally Wastegated- Built-in external wast...

We thought we would make it easier for our newest customers to upgrade their Fiesta ST's by introducing our best selling products now in a package!...

Click Here for our Turbo Recommendations Blog PRODUCT DESCRIPTION:NOW AVAILABLE - Garrett GEN2 - GTX2860R bolt-on Turbo for the +2014 Fiesta ST Tur...

Contact us via email at sales@jst-performance.com for custom tune and/or dyno tune options! Introducing the Accessport for your 2023-2024 Honda Ci...

Contact us via email at sales@jst-performance.com for custom tune and/or dyno tune options! Simple ECU flashing with gauge package! The in-cabin m...

Product Details The Damond Motorsports Rear Motor Mount is a must have for any car enthusiast seeking to plant power more directly to the pavemen...

FA Coilovers are custom built to order, please allow 3-4 weeks for items to ship. Generation 8 is here, new features include: High Flow Digressive™...

Product Details The Damond Motorsports Full Motor Mount Set for the Focus RS is here! Get your car fully mounted with our specially designed mount...