If you’re building a high-performance car that demands real power, reliability, and race-ready engineering, then Spool Performance should be on your radar. Known for its precision-designed fueling solutions, upgraded transmissions, turbo systems, and other core performance components, Spool Performance brings serious enhancements to enthusiast and tuner platforms alike.

Who Is Spool Performance?

Spool Performance is a performance parts brand built by a team of passionate engineers focused on crafting products that exceed expectations for quality, price, and real-world performance. Every component is meticulously developed — from CAD design and prototype testing to CFD analysis and endurance testing — ensuring fitment, functionality, and durability on and off the track.

The company is particularly well-known for advanced direct-injection fueling solutions, auxiliary fuel systems, ethanol kits, high-pressure fuel pumps, and more, tailored to a growing list of popular and high-output engines from BMW, Mercedes-AMG, Audi, VW, and others.

Performance Parts That Push Limits

Whether you’re chasing big power goals or tightening up a tuned engine build, Spool Performance offers a variety of upgrades that help unlock significant potential:

High-Pressure Fueling & Direct Injection Solutions

From upgraded high-pressure fuel pumps to advanced direct-injector sets, Spool Performance delivers fueling upgrades built for boosted and high-ethanol applications — eliminating stock fueling bottlenecks and enabling more aggressive tunes safely and reliably.

Turbocharger & Manifold Upgrades

Performance-driven turbo systems and billet manifolds enhance airflow and efficiency for rapid spool, minimized back-pressure, and rock-solid boost control — a must for big-power builds.

Stage 2 Transmission Upgrades

Spool Performance doesn’t stop at engine upgrades — it also offers Stage 2 transmission kits for ZF 8HP series gearboxes, beefing up torque capacity and durability to handle more than stock components can. Ideal for high-powered builds that push the limits of factory drivetrain systems.

Ethanol & Monitoring Systems

Wireless ethanol content kits take the guesswork out of flex fuel tuning, helping you dial in E85 performance with real-time fuel quality data.

Why Enthusiasts Choose Spool Performance

What sets this brand apart is its engineering focus and real-world testing — from high-speed HPFP upgrades to race-ready turbo kits, Spool Performance products are built to meet the demands of aggressive tuning and performance driving.

Across BMW and Toyota Supra platforms to Audi and AMG platforms, these parts help push vehicles closer to their full potential while retaining solid drivability and reliability when used with proper support tuning.

Perfect for Tuners & Builders

Whether you’re chasing:

• Higher boost and safer fueling on ethanol blends,
• Faster turbo response and stability,
• Increased transmission torque capacity,
• Or monitoring tools for tuned engines,

Spool Performance has a solution that gives you confidence to build higher and go harder.

Ready to elevate your build with race-engineered performance parts? Check out Spool Performance here: https://x-ph.com/spool-performance/