RENNtech

RENNtech Classic Wheels 🔥

🔥 734 HP. 753 LB-FT. For your AMG SL63/GT63 with the RENNtech Power Module 🔥 
Take your Mercedes-AMG SL 63 (R232) or AMG GT 63 (C192) to the next level with the RENNtech Power Module (RPM) ECU Upgrade for the 4.0L BiTurbo V8 M177 with EQ Boost and gain up to +106 HP and +87 LB-FT 📈 
Engineered from more than 35 years of RENNtech ECU tuning experience, the RPM optimizes ignition timing, throttle mapping, and air/fuel ratios to deliver stronger horsepower and torque throughout the entire powerband—without sacrificing the refinement your AMG was built for.
🏁 DYNO-TESTED PERFORMANCE
Factory Rating: 577 HP | 590 LB-FT
Dyno Tested Stock: 628 HP | 666 LB-FT
🔥 RENNtech RPM Tuned: 734 HP | 753 LB-FT
📈 Gains: Up to +106 HP | +87 LB-FT
The RPM is housed in a precision CNC-machined 6061 aluminum enclosure and includes pre-labeled wiring and connectors for a clean installation. A supplied bypass allows the module to be removed and the vehicle quickly returned to stock configuration.

Engineered specifically for the Mercedes-AMG 63 Series BiTurbo M157 engine, our 4-piece Carbon Fiber Airbox Kit is manufactured from premium prepreg carbon fiber and paired with flow-optimized turbo inlet tubes designed to increase incoming airflow and maximize engine performance.
🇺🇸 Designed, engineered, and manufactured in the USA using industry-leading materials for exceptional strength, durability, heat resistance, and long-lasting appearance.
⚡ Performance gains up to:
• +10 HP
• +10 LB-FT of torque
Beyond the performance benefits, the full carbon fiber construction transforms the engine bay into a true showpiece—combining motorsport-inspired engineering with an OEM+ finish.
Built for AMG enthusiasts who demand performance without compromising appearance.

+91HP and +155LB-FT for the E63 Wagon 🔥
Transform the performance of your Mercedes-AMG E 63 (S212) with the RENNtech R1 Performance Package, an entry-level upgrade designed to deliver serious gains without compromising everyday drivability.
The R1 package combines a RENNtech ECU Upgrade, 3rd Generation Diverter Valve, and upgraded Air Filters to unlock up to +91 HP and +155 LB-FT of torque from the E 63 AMG’s 5.5L V8 BiTurbo engine.
With the R1 upgrade, output increases to an impressive 696 HP and 801 LB-FT at the crank, delivering stronger acceleration, improved throttle response, and more power throughout the entire RPM range.
The upgraded diverter valve also helps manage boost pressure more effectively, improving airflow between shifts and reducing turbo lag for a quicker, more responsive driving experience.
R1 Performance Package:
ECU Upgrade • Diverter Valve • Air Filters
Gains: +91 HP • +155 LB-FT
Output: 696 HP • 801 LB-FT

Unlock +102HP and +62LB-FT in your AMG GT 63 4-Door Coupe with the RENNtech ECU+ Upgrade 🔥
The RENNtech HHT (Hand-Held Tuner) gives you the freedom to switch between RENNtech-tuned and factory ECU programming directly through your vehicle’s OBD2 port. No ECU removal required, and reflashing takes only a few minutes.
Built from decades of in-house research, development, and testing, the RENNtech software optimizes ignition timing, throttle mapping, air/fuel ratios, rev limits, and turbo boost mapping to unlock stronger horsepower and torque throughout the powerband while maintaining the daily-driver reliability RENNtech has built its reputation on since the 1989. 
And because we believe in Performance Without Compromise, the HHT for the M177 is:
✅ 50-State Street Legal 
✅ EPA emissions compliant
✅ CARB Executive Order granted

Unlock gains up to +102HP and +128LB-FT in your G550, and take the 4.0L BiTurbo V8 to a whole other level with the RENNtech ECU+ Upgrade 🔥 
Based on in-house dyno testing this brings output to 528HP and 558 LB-FT of torque 🔥
RENNtech’s proprietary Mercedes-Benz ECU tuning optimizes boost mapping, ignition timing, throttle response, air/fuel ratios, and key engine parameters to deliver stronger power throughout the rev range, and a noticeably sharper, more responsive G-Class driving experience.
And performance doesn’t have to mean compromise. ✅
The RENNtech HHT tuning solution for Mercedes-Benz and Mercedes-AMG M176, M177 & M178 4.0L BiTurbo V8 engines is:
✅ EPA emissions compliant
✅ CARB approved
✅ Street legal in all 50 states

Upgrade your GLC Coupe from every angle and save 10% on RENNtech performance upgrades during our Labor Day Sale 🔥
Start with the RENNtech TCU Upgrade for Mercedes-Benz 9G-Tronic transmissions, designed with increased clutch torque limits, increased clutch pressure, and faster shift times for quicker, more responsive acceleration—especially when paired with RENNtech ECU and Turbo upgrades.
Take control of the soundtrack with the RENNtech Exhaust Valve Module, giving you the ability to fully open the AMG Sport Exhaust valves on demand or return to factory operation at the push of a button.
Finish the transformation with the RENNtech Hand-Held Suspension Module, allowing you to fine-tune your AIRMATIC suspension in precise 1 mm increments directly from the RENNtech mobile app for the perfect stance 🏁

🔧 WE’RE HIRING: Engine & Transmission Builder! ⚙️
Are you passionate about precision, performance, and building something unique? We’re looking for a skilled and detail-oriented Engine & Transmission Builder to join our manufacturing team.
In this hands-on role, you’ll assemble, repair, and maintain engines and transmissions while also working on custom engine builds tailored to specific performance and application requirements. From precision assembly to specialized components, you’ll help bring one-of-a-kind engine projects to life. Every build must meet our high standards for quality, safety, durability, and performance.
If you have the experience, attention to detail, and passion for building high-performance and custom mechanical systems, we want to hear from you!
📩 Apply today and join our team! Send your resume to [email protected]

This Labor Day we celebrate the craftsmanship, engineering, and the relentless pursuit of performance without compromise that goes into every RENNtech upgrade 🔥
And now, with our RENNtech Labor Day Sale, it’s your chance to save and unlock next level performance for your build 🏁

Gains up to +68HP and +120LB-FT with the RENNtech HHT for the GLS and GLE 580😈
Unlock more performance from your Mercedes-Benz AMG with the RENNtech Hand Held Tuner — our easy-to-use ECU programming solution that lets you tune your vehicle right from the OBD2 port 🔥
For the GLS and GLE 580 EQ Boost+, our RENNtech ECU tuning can deliver gains of up to +68 HP and +120 LB-FT of torque (13% increase), with maximum measured output reaching 592 HP and 704 LB-FT 🔥
Take advantage of our Labor Day Sale and save 10% on your RENNtech HHT🏁
 
✅ No ECU removal
✅ No mechanical modifications
✅ Flash your vehicle in just minutes
✅ Switch between your RENNtech Tuned file and Stock file anytime
✅ Re-flash as many times as you need