40T Performance & Engineering — European Repair, Performance & Parts in Corona, CA

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Audi R8 up on the lift at 40T
Service & Repair · Corona, CA

European Service. Done Right.

From oil changes to full engine rebuilds. Factory-level diagnostics, maintenance and performance installs for European cars.

Parts · Designed & Tested In-House

Parts We Run On Our Shop Cars.

40T E85 Sensor Bypass Module 40T Turbo Oil Drain Return Hoses

E85 flex fuel, HPFP and turbo components for the 4.0T platform and beyond. Proven in our bays before they ship to you.

What we do

Full-Service European Shop

Service & Maintenance

Oil changes, brakes, trans & AWD fluids, suspension, mounts and control arms.

Diagnostics

Deep scan codes across the engine, transmission and all modules.

Boost Leak Testing

Experts in finding boost and vacuum leaks to restore lost power.

Performance Upgrades

Brakes, intercooling, turbo, exhaust and fueling.

E85

Flex fuel setups matched to the hardware on your car.

Aero & Body Kits

Spoilers, diffusers, wings and canards, fitted and installed.

Engineering

3D scanning, reverse engineering and prototyping.

Fabrication

Custom lines, fittings and one-off solutions.

Engine Builds

Teardowns, rebuilds and full engine builds.

Online booking

Book Your Service Appointment

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Maintenance, diagnostics or performance.
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Live shop availability.
40T Parts

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4.0T HPFP Internal seal rebuild kit - fix rough Starts and fuel leak down!
4.0T Turbo Outlet Hoses (pair) - Matte Black Wrapped SS T-bolt Clamps
Testing for boost leaks at home? Get the tester we use in our shop. Turbo Boost Leak Testers →

Inside the Shop

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Three Audi R8s parked outside 40T Engine pulled and hanging from the lift Turbo rebuild parts on the bench Blue Audi in front of the 40T bay
See Inside the Shop

About 40T

40T Performance & Engineering is a European repair and performance shop with a focus on product engineering and development, based in Corona, California. We handle everything from routine service to complete engine builds, and we design and sell the parts we trust on our own cars.

Visit
1441 Pomona Rd, Suite 19
Corona, CA 92882
Call or text
(951) 577-4021
Hours
Mon–Fri: 10am – 6pm
Saturday: By appointment only
Sunday: Closed