Focus ST/RS Parts

Birthed on the forums through community effort, Clayton Performance is proud to offer our Purge Valve assemblies! Completely user serviceable, manu...

**BUILT PER ORDER 2-4 WEEKS FOR SHIPPING*** Scooter at Arc Enemy Fab is back at it again with the custom built mods that improve your big turbo kit...

These are for the people who can’t quiet decide if they want white or yellow fog lights. Now you can have best of both worlds with my switchbacks. ...

**FOR OFF ROAD AND RACE USE ONLY** 2-4 week lead time! Clayton Performance is now authorized to sell the Arc Enemy Fab (scooter for those of you in...

Direct bolt-on replacement 2.5" hot-side piping and 2.75" cold-side piping in wrinkle black finish Includes CVF Boost Reference Adapter Kit...

This easy-to-fit ‘plug & play’ intake manifold for the Mk3 Ford Focus RS and ST fits with no modification needed to any of the standard pipewor...

***Recommended for stock to 450hp stock internals*** NGK Iridium IX Spark Plugs GK Iridium Spark Plug (LTR7IX-11) NGK Iridium IX spark plugs are sp...

Tired of not being able to see when backing up at night or through dark tint? Well I have a solution get some of if not the brightest plug and pla...

Get rid of that annoying sound symposer that makes your exhaust drone and add some utility to your car with our added boost reference port! Our kit...

Some of if not the brightest plug and play white LEDs for your fog lights on the market, producing an astounding 20k lumen per bulb! Backed by an i...

Birthed on the forums through community effort, Clayton Performance is proud to offer our Purge Valve assemblies! Completely user serviceable, manu...

The Radium Engineering PCV Baffle Plate mounts to the engine block and replaces the factory plastic PCV plate and valve. Compared to the OEM unit, ...

***These plugs are recommended for built motor high boost applications*** The NGK R7448A-8 Racing spark plugs have a colder heat range compared to ...

Tial Q Blow-off valve. Newer version of the popular Tial 50mm valve. Uses same weld flanges. Specify Color, Spring Pressure and Flange material op...

2013 - 2018 Ford Focus ST passenger side mount by AWR Racing. This mount is a must have for any ST owner. Want less engine movement, cleaner shif...

Tial External Wastegate, 44mm - MVR Vband connections. Direct replacements and takes same flanges as Tial V44. More compact top section with same ...

This is a direct bolt on crash bar replacement for the bulky OEM bumper bar. This crash bar will improve airflow to your radiator and intercooler w...

Developed and manufactured at AIRTEC HQ in the UK, we’re proud to launch the most comprehensive and least restrictive intake kit available on the m...

This enlarged cold side pipe is an upgrade for our big boost pipe kit. It replaces the cold side hard pipe with a high-quality Pro Hoses silicone p...

Supports   EcoBoost 2.0T/2.3T powered vehicles E85 blended fuel Full E85 (OEM LPFP needs to upgrade past 400whp) Over 650 WHP (can upgrade to lar...

This kit is for the 2013-2018 Ford Focus ST and Ford Focus RS. It is designed to replace the plastic coolant tank found at the front right of the e...

***Please contact us for custom spring rates and/or swift springs*** BC Racing BR Series Coilovers for the 2013-2018 Ford Focus ST (MK3) offer the ...

Maybe you tinted your tail lights because you liked the look or maybe you just want people to be able to tell you’re turning. These blinkers put o...

Looking to get a little more out of your Focus RS? This kit allows you to run a larger 63mm Ford throttle body commonly used on the 2.3 Ecoboost Mu...