Performance Parts

XClutch chromoly flywheels are explosion-proof and are designed to meet SFI specification 1.1. XClutch flywheels come with an integral ring gear and timing sensor ring if applicable.   Part Details Flywheel Step: -0.375 Flywheel Weight...

SP63 1/2" L19 Head Stud Kit ___________________________________________________________________________ Introducing our SP63 1/2" Head Stud Kit: The Ultimate Choice for Maximum Performance and Reliability! When it comes to securing your engine's head...

SP63 2.4L Custom 88mm Piston Kit | Mazda & Ecoboost To build an engine that excels the most power and is reliable, you start to wonder what can be innovated and modified to achieve your goal. SP63 began brainstorming ways they could create a...

SP63 2.4L Custom Pistons & Rods Kit | Mazda & Ecoboost To build an engine that excels the most power and is reliable, you start to wonder what can be innovated and modified to achieve your goal. SP63 began brainstorming ways they could...

SP63 2.5L Kit | Ecoboost 2.0L/2.3L & MZR-DISI The rod/stroke ratio affects several engine dynamics, including piston speed and acceleration, piston dwell at top dead center and bottom dead center, piston side loads, cylinder loading and...

Nickel Bronze valve seats are the performance option for replacing factory seats when doing your cylinder head build. In high revving performance head builds, factory seats are prone to excessive wear resulting in premature valve failures. To...

Nickel Bronze valve seats are the performance option for replacing factory seats when doing your cylinder head build. In high revving performance head builds, factory seats are prone to excessive wear resulting in premature valve failures. To...

SP63 Keyed Crankshaft For Ford Ecoboost 2.3L - Focus RS / Ecoboost Mustang   The Ford Ecoboost engine relies on 2 friction washers between the crank pulley and sprocket to help keep the motor in time. This works very well for stock power...

SP63 MZR-DISI/Ecoboost Custom L.A Sleeves   Burned through your cylinder walls beyond repair? Looking to make some decent power, but are limited to the stock sleeves? Well, do we have the solution for you! Price includes custom L.A...

Everyone knows that cutting and splicing wires is not for the faint of heart and if you don't get it right you can end up with disastrous consequences. Now you don't have to cut and splice your coil pack harness to wire in the split second AIC1...

ADJUSTABLE CONTROL ARMS These fully adjustable Upper Control Arms transform your classic Mopar from sluggish, non-responsive handling to high performance FUN! Dial in additional positive caster, adjust your camber, and enjoy the feel of up to 6...

Evolution of the Head Stud Introducing the Custom Age 625+ head studs from SPEED PERF6RMANC3. These studs have an even higher UTS (closer to the 280 ksi limit of the material) than our previous L19 offering and have the added benefit of...

SPEED PERF6RMANC3 Motorsport ReFlex+ Harness A custom-built harness designed specifically for the Ford Focus ST/RS, EcoBoost Mustang, and Mazdaspeed platforms using the Motiv Motorsport ReFlex+ controller. Product includes: Signal...

SPEED PERF6RMANC3 Focus ST/RS Synchro Straight-Cut Gearset (1–6) Model: Focus RS / Focus ST Transmission: FWD Engine: 2.0T Gearbox: MMT6 B6 Category: Drag (Street/Strip) Fitment: OEM   Unleash the full potential of your Focus ST...

SPEED PERF6RMANC3 UltimateSeal™ Package - Ford Focus ST 2.0L Block   Kit Includes: SCE Vulcan Cut Head Gasket SPEED PERF6RMANC3 CA 625+ Head Studs   SCE vulcan cut-ring head gasket is meant for those who do not have...