Home / Performance Upgrades / Engine Upgrades Engine Upgrades Most popularNew inPrice (low to high)Price (high to low)Name (A to Z)Name (Z to A) Sort By Most popularWhat's newPrice low to highPrice high to lowName A to ZName Z to A Showing 24 of 24 Items In Stock 2.0 Ecoboost Manley Forged Pistons Set of 4 - Ford Focus Mk3 ST (250PS) £695.96 More details Quickview In Stock AIRTEC MOTORSPORT 340LPH UPRATED FUEL PUMP £688.57 Add to cart Quickview In Stock AIRTEC MOTORSPORT BIG TURBO CAST EXHAUST MANIFOLD FOR FOCUS MK2 RS/ST £300.93 Add to cart Quickview In Stock AIRTEC MOTORSPORT INLET PLENUM FOR FOCUS MK2 ST & RS BLACK, WHITE, RED £380.00 More details Quickview In Stock AIRTEC MOTORSPORT INLET PLENUM FOR MK2 FOCUS ST & RS BLUE, GREEN, ORANGE £435.00 More details Quickview In Stock AIRTEC MOTORSPORT PORTED LOWER INLET MANIFOLD FOR FOCUS MK2 ST & RS, VOLVO C30 T5 From: £203.97 More details Quickview In Stock Audi S1 Cat Back Exhaust (Non-Resonated) From: £1,000.03 More details Quickview In Stock BOSCH 1000CC MULTIHOLE INJECTORS SET OF FIVE £500.92 Add to cart Quickview In Stock BOSCH 550CC MULTIHOLE INJECTORS SET OF FIVE £398.95 Add to cart Quickview In Stock BOSCH 650CC MULTIHOLE INJECTORS SET OF FIVE £444.35 Add to cart Quickview In Stock BOSCH 750CC MULTIHOLE INJECTORS SET OF FIVE £484.75 Add to cart Quickview In Stock Fiesta ST150 aftermarket inlet manifold £383.75 Add to cart Quickview In Stock Fiesta ST180 tubular manifold £504.95 Add to cart Quickview Sold out Focus MK3 ST/RS 63mm Throttle Body upgrade kit £270.48 Out of stock In Stock Ford Focus RS Performance Exhaust De-Cat Pipe £141.40 Add to cart Quickview In Stock Ford Focus ST 2013+/ Focus RS 2016+ Aluminium Expansion Tank £193.92 More details Quickview In Stock GT3071R-WG Bolt-on Turbo for the 2.0L Ecoboost Focus ST - Ford Focus Mk3 ST (250PS) £2,292.70 Add to cart Quickview In Stock Magnetic sump plug £12.07 Add to cart Quickview In Stock Manley Forged Connecting Rods Focus 2.0 Ecoboost H Beam - Ford Focus Mk3 ST (250PS) £505.00 Add to cart Quickview In Stock MK3 Focus ST/RS petrol throttle body spacer kit £60.55 Add to cart Quickview In Stock Pumaspeed Focus Heavy Duty Boost Solenoid - Ford Focus Mk3 ST (250PS) £101.00 Add to cart Quickview In Stock Standard ST250 EcoBoost Turbocharger BRAND NEW - Ford Focus Mk3 ST (250PS) £964.55 Add to cart Quickview In Stock VW Golf MK5 GTI 2004-09 Cat Back Exhaust (Resonated) £636.67 More details Quickview In Stock VW Golf MK5 GTI 2004-09 Turbo Back Exhaust (with De-Cat / Non-Resonated) £947.20 More details Quickview