High-Performance & Track Car Transmission Rebuilds

Specialist Rebuilds for Modern Hot Hatches

It is a common misconception that gearbox failures only happen to older, high-mileage daily drivers. The reality is that modern hot hatches and track-focused cars are subjected to immense mechanical stress. When you are pushing high horsepower through complex, close-ratio manual gearboxes or high-torque DCTs (Dual-Clutch Transmissions), internal components are going to wear out—even on brand-new vehicles.

Specialist Rebuilds for Modern Hot Hatches

We regularly strip and rebuild highly advanced transmissions to exact factory tolerances, including:

• Hyundai N-Division (i30N & i20N): These cars are track weapons straight from the factory, but that takes a toll. We rebuild their intricate 6-speed manuals, carefully handling the complex integration of the e-LSD (Electronic Limited Slip Differential) and the highly sensitive rev-matching electronics. If your '24 plate i30N is crunching on a fast shift, we can rebuild the internal synchros without needing a whole new gearbox.

• Honda Civic Type R: Famous for having one of the best factory manual shifters in the world, but notorious for high-RPM gear lockouts (particularly in 2nd and 4th gear). We strip down these close-ratio boxes and upgrade the synchromesh rings and selector mechanisms to restore that perfect, rifle-bolt shift.

• Ford Focus RS & High-Torque AWDs: Handling immense torque and AWD power transfer requires absolute precision. We rebuild heavy-duty gearsets, address bearing wear caused by aggressive launches, and ensure the casing tolerances are perfectly shimmed to handle the power.

• High-Torque DCTs (Dual-Clutch Transmissions): Performance automatics shift faster than humanly possible, but aggressive track mapping and launch control can destroy their internal clutch packs and overheat the mechatronics. We rebuild, upgrade, and thermally calibrate these advanced systems.

Common Performance Gearbox Symptoms We Fix:

When you are driving hard, you need absolute confidence in your drivetrain. Watch out for these signs of internal wear:

• High-RPM Gear Lockout: The physical inability to push the shifter into the next gear during hard, redline acceleration.

• Synchro Crunching: A harsh grinding noise or tactile "crunch" felt through the gear stick specifically on fast, aggressive upshifts or downshifts.

• Differential Whine: A high-pitched whining noise coming from the e-LSD or mechanical limited-slip differential under heavy cornering loads or hard acceleration.

• Slipping under Boost: In DCTs, a sudden spike in RPM without matching acceleration when the turbo spools up, indicating worn clutch packs.

Precision Engineering Over Parts Swapping

Performance gearboxes have incredibly tight internal clearances. A standard rebuild isn't enough. We utilize exact pre-load shimming, high-performance bearing upgrades, and full software relearning (for DCTs and e-LSDs) to ensure your transmission can handle the exact power and track abuse it was originally designed for.

Get in touch to discuss your performance rebuild