Performance Parts

ARP 12mm Custom Age 625+ Head Stud Kit ___________________________________________________________________________ Introducing 12mm Head Studs: The Ultimate Choice for Maximum Performance and Reliability!   When it comes to...

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...

SP63 Injector Seals & O-ring Kit| Mazdaspeed 3 & 6 Speed Performance has recently and meticulously engineered the perfect set of injector seals to ensure alignment and fitment to your vehicle! Engineered right here in house, SP63's seals...

SP63 Injector Seals Set | Mazdaspeed 3 & 6 When in doubt, buy some seals... No, for real you'll need them! Speed Performance has recently and meticulously engineered the perfect set of injector seals to ensure alignment and fitment to...

The Mazda MZR engine relys on 3 friction washers between the crank pulley and sprockets to help keep the motor in time. This works very well for stock power levels and even mild big turbo setups. Once you reach the 500whp mark, slipping...

SP63 Keyed Crankshaft For Mazda MZR-DISI Mazdaspeed3/6 The Mazda MZR engine relys on 3 friction washers between the crank pulley and sprockets to help keep the motor in time. This works very well for stock power levels and even mild big...

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...

Both the Mazda MZR and Ford Ecoboost motors suffer from poor PCV systems from the factory. Many people add a sealed oil catch can with a check valve between the intake manifold and the OEM PCV plate on the block in order to help prevent boost from...

SPEED PERF6RMANC3 "Mini" Port Injection Fuel Kit For Mazda MZR-DISI - Mazdaspeed 3/6   Fuel has, is, and always will be the most limiting factor of any direct injection platform. Some OEM’s have resorted to using a combination...

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...

   ***ITEM MAY TAKE TAKE LONGER TO SHIP AS MANUFACTURERS HAVE SLOWED DOWN PRODUCTION DUE TO COVID-19***   Fuel has, is, and always will be the most limiting factor of any direct injection platform. Some OEM’s have resorted...

Fuel has, is, and always will be the most limiting factor of any direct injection platform. Some OEM’s have resorted to using a combination of direct injection (DI) and port injection (PI) in order to meet the demands of higher horsepower...