Are you afraid of tuning your vehicle because of limitations of the factory warranty?
RENNtech is excited to announce our new Extended Protection for customers with our HHT,
ECU Upgrade, Stage I Turbo, or our Stage II Turbo. Finally, performance without compromise.
Buy sooner than later!
Save money by purchasing coverage during the first 30 days of the product purchase.
You can purchase our coverage later, but as time passes by there will be a surcharge.
So, the earlier you purchase your REP the better!
We’ve got a vehicle service contract for all stage I and stage II upgrades:
RENNtech is excited to announce our new Extended Protection for customers with our HHT,
ECU Upgrade, Stage I Turbo, or our Stage II Turbo. Finally, performance without compromise.
REP / Powertrain / 48 months / 50,000 miles
Engine / Transmission / Drivetrain-front & rear wheel drive / 4x4/AWD
Covers comprehensive support for auto repairs; Even in the case of TCU,
and a Suspension Control Module installation.
Engine / Transmission / Drivetrain-front & rear wheel drive / 4x4/AWD
Covers comprehensive support for auto repairs; Even in the case of TCU,
and a Suspension Control Module installation.
Buy sooner than later!
Save money by purchasing coverage during the first 30 days of the product purchase.
You can purchase our coverage later, but as time passes by there will be a surcharge.
So, the earlier you purchase your REP the better!
We’ve got a vehicle service contract for all stage I and stage II upgrades:

Stage I HHT & ECU+ Upgrade
• Significant gains in horsepower and torque across the entire power band.
• Optimizes air/fuel ratios, ignition timing, & throttle mapping.
• Increase engine rev limiter. Modifies boost mapping for turbocharged vehicles.
• Significant gains in horsepower and torque across the entire power band.
• Optimizes air/fuel ratios, ignition timing, & throttle mapping.
• Increase engine rev limiter. Modifies boost mapping for turbocharged vehicles.

Stage I Turbo
• Comes with the RENNtech ECU Upgrade
• Less rolling resistance offers quicker spooling
• Virtually no turbo lag with impressive throttle response
• Substantial increase in HP & TQ
• Comes with the RENNtech ECU Upgrade
• Less rolling resistance offers quicker spooling
• Virtually no turbo lag with impressive throttle response
• Substantial increase in HP & TQ

Stage II Turbo
• Comes with the RENNtech ECU Upgrade
• Less rolling resistance offers quicker spooling
• Virtually no turbo lag with impressive throttle response
• Substantial increase in HP & TQ
• Comes with the RENNtech ECU Upgrade
• Less rolling resistance offers quicker spooling
• Virtually no turbo lag with impressive throttle response
• Substantial increase in HP & TQ
Are you looking to upgrade your vehicle and own one of the following?
- Mercedes-Benz M176 | 4.0L V8 BiTurbo
- W222 - S 560 Sedan (Click for details)
- X217 - S 560 Coupe (Click for details)
- W167 - GLE 580 SUV (Click for details)
- X167 - GLS 580 (Click for details)
- W463 - G 550 AMG MY2015-18 (Click for details)
- W463a- G 550 AMG MY2019+ (Click for details)
- Mercedes-AMG | M177 | 4.0L V8 BiTurbo
- W205 - C 63 AMG Sedan (Click for details)
- W205 - C 63 S AMG Sedan (Click for details)
- C205 - C 63 AMG Coupe (Click for details)
- C205 - C 63 S AMG Coupe (Click for details)
- X253 - GLC 63 AMG SUV - MY2016-22 (Click for details)
- X253 - GLC 63 S AMG SUV - MY2016-22 (Click for details)
- C253 - GLC 63 AMG Coupe - MY2016-22 (Click for details)
- C253 - GLC 63 S AMG Coupe - MY2016-22 (Click for details)
- W213 - E 63 AMG Sedan (Click for details)
- W213 - E 63 S AMG Sedan (Click for details)
- S213 - E 63 AMG Wagon (Click for details)
- S213 - E 63 S AMG Wagon(Click for details)
- X290 - AMG GT 63 4-Door Coupe (Click for details)
- X290 - AMG GT 63 S 4-Door Coupe (Click for details)
- W222 - S 63 AMG Sedan (Click for details)
- C217 - S 63 AMG Coupe (Click for details)
- W167 - GLE 63 AMG SUV (Click for details)
- W167 - GLE 63 S AMG SUV (Click for details)
- V167 - GLE 63 AMG Coupe (Click for details)
- V167 - GLE 63 S AMG Coupe (Click for details)
- X167 - GLS 63 AMG SUV (Click for details)
- X167 - GLS 63 S AMG SUV (Click for details)
- W463s - G 63 AMG - MY2019+ (Click for details)
- Mercedes-AMG | M178 | 4.0L V8 BiTurbo
- C190 - AMG GT (Click for details)
- C190 - AMG GT S (Click for details)
- C190 - AMG GT C (Click for details)
- C190 - AMG GT R (Click for details)
- C190 - AMG GT Black Series (Click for details)
- Aston Martin
- Vantage V8 (Click for details)
- DB 11 V8 (Click for details)
- DBX V8 (Click for details)
- Sprinter
- 2.0L Diesel (Click for details)
- 3.0L Diesel (Click for details)
Are you looking to increase your dealership’s revenue?
Consider offering our superior vehicle service contracts.
Consider offering our superior vehicle service contracts.
Contact Us