Home > Focus Performance > Focus RS Performance Parts

Focus RS Performance Upgrades

mountune has more Focus RS tuning experience than any other company resulting in a wide range of proven products backed by over 35 years of motorsport DNA. Our team has spent countless hours developing upgrades that enhance power and performance to new levels. The ever expanding product line includes the best engineered products that perform on the road or track. From air intakes to exhaust systems, mountune has the Focus RS upgrade you can count on to produce maximum reliable power.

Sort By:
Page of 1
mountune High Performance 2.3L RS Long Block mountune High Performance 2.3L Focus RS Long Block
Price:$12,999.00
Sale price:$12,500.00
Savings: $499.00
mountune High Performance 2.3L RS Short Block mountune High Performance 2.3L Focus RS Short Block
Price:$5,920.00
Sale price:$4,999.00
Savings: $921.00
Drivetrain Upgrade - Ceramic Twin Disc Clutch - Ford Focus RS Drivetrain Upgrade - Ceramic Twin Disc Clutch - Focus RS
Price:$3,699.00
Sale price:$3,559.00
Savings: $140.00
Drivetrain Upgrade - Organic Twin Disc Clutch - Ford Focus RS Drivetrain Upgrade - Organic Twin Disc Clutch - Focus RS
Price:$3,649.00
Sale price:$3,499.00
Savings: $150.00
mountune Ford Focus RS MRX Turbocharger Upgrade mountune Focus RS MRX Turbocharger Upgrade
Price:$3,599.00
Sale price:$3,449.00
Savings: $150.00
mountune Forged 2.3L EcoBoost Engine Component Kit mountune Forged 2.3L EcoBoost Engine Component Kit
Price:$3,347.00
Sale price:$3,199.00
Savings: $148.00

(1)
COBB Accessport V3 ECU Flasher - Ford Focus RS B7 Package COBB Accessport V3 ECU Flasher - Ford Focus RS B7 Package
Price:$2,499.00
Sale price:$2,199.00
Savings: $300.00

(8)
COBB Accessport V3 ECU Flasher - Ford Focus RS B6 Package COBB Accessport V3 ECU Flasher - Ford Focus RS B6 Package
Price:$2,449.00
Sale price:$1,959.00
Savings: $490.00
COBB Accessport V3 ECU Flasher - Ford Focus RS B5 Package COBB Accessport V3 ECU Flasher - Ford Focus RS B5 Package
Price:$2,086.00
Sale price:$1,669.00
Savings: $417.00

(8)
COBB Accessport V3 ECU Flasher - Ford Focus RS B4 Package COBB Accessport V3 ECU Flasher - Ford Focus RS B4 Package
Price:$1,917.00
Sale price:$1,539.00
Savings: $378.00

(2)
ST XTA Coilover Kit - Focus RS ST XTA Coilover Kit - Focus RS
Price:$1,699.99
Sale price:$1,419.49
Savings: $280.50

(1)
mountune Full Intercooler Upgrade, Focus RS mountune Full Intercooler Upgrade - Focus RS
Price:$1,548.00
Sale price:$1,299.00
Savings: $249.00

(12)
XClutch Focus RS/ST - Stage 1 Single Sprung Organic Disc with Flywheel XClutch Focus RS/ST - Stage 1 Single Sprung Organic Disc with Flywheel
Price:$1,480.50
Sale price:$1,259.00
Savings: $221.50
COBB Accessport V3 ECU Flasher - Ford Focus RS B3 Package COBB Accessport V3 ECU Flasher - Ford Focus RS B3 Package
Price:$1,537.00
Sale price:$1,229.00
Savings: $308.00

(17)
Quaife ATB Differential, Focus RS 2016-2018 Quaife ATB Differential - Focus RS 2016-2018
Price:$1,199.00
Sale price:$1,019.15
Savings: $179.85

(3)
mountune Focus RS Induction System mountune Focus RS Induction System
Price:$1,276.00
Sale price:$999.00
Savings: $277.00

(4)
Ford Performance Focus RS Drift Stick Ford Performance Focus RS Drift Stick
Price:$999.00
Sale price:$899.00
Savings: $100.00

(3)
2016-2018 Ford Focus Rs Carbon Fiber Fenders (Pair) 2016-2018 FORD FOCUS RS CARBON FIBER FENDERS (PAIR)
Price:$899.00
Sale price:$854.05
Savings: $44.95
2016 Focus RS Rear Spoiler Kit Focus RS Rear Spoiler Kit
Price:$899.00
Sale price:$790.00
Savings: $109.00

(1)
COBB Accessport V3 ECU Flasher - Ford Focus RS B2 Package COBB Accessport V3 ECU Flasher - Ford Focus RS B2 Package
Price:$903.00
Sale price:$759.00
Savings: $144.00

(13)
COBB Accessport V3 ECU Flasher - Ford Focus RS B1 Package COBB Accessport V3 ECU Flasher - Ford Focus RS B1 Package
Price:$789.00
Sale price:$729.00
Savings: $60.00

(13)
mountune Street Complete Brake Upgrade Focus RS mountune Street Complete Brake Upgrade Package - Focus RS
Price:$748.27
Sale price:$699.00
Savings: $49.27
mountune RS-R Brake Pad & Rotor Package - Focus RS mountune Street Brake Pad & Rotor Package - Focus RS
Price:$529.80
Sale price:$469.00
Savings: $60.80
mountune RS-R Brake Upgrade Kit - Focus RS mountune RS-R Brake Upgrade Kit - Focus RS
Price:$448.00
Sale price:$429.00
Savings: $19.00
mountune Brake Pad Set, Focus RS Track FRONT & REAR mountune Brake Pad Set - Focus RS Track FRONT & REAR
Price:$338.00
Sale price:$309.00
Savings: $29.00

(5)
mountune Brake Pad Set, Focus RS Street FRONT & REAR mountune Brake Pad Set - Focus RS Street FRONT & REAR
Price:$288.00
Sale price:$269.00
Savings: $19.00

(6)
mountune Turbosmart Wastegate Actuator - Focus RS mountune Turbosmart Wastegate Actuator - Focus RS
Price:$153.74
Sale price:$138.37
Savings: $15.37

(13)
mountune Ultra high-performance silicone coolant kit Focus RS mountune Ultra high-performance silicone coolant kit Focus RS
Price:$129.00
Sale price:$99.00
Savings: $30.00

(1)
mountune Gearknob mountune Gearknob
Price:$69.00

(55)