Engine
Blow Off Valve
The Mercedes M275 and M279 Biturbo V12 engines found in the AMG 65 models feature plastic bypass valves that are installed the the compressor covers of each tur...
$799.00
Intake
The Weistec ASV/WM Injection System adds multiple beneficial components to the M157 BiTurbo 5.5L engine. First being the addition of a Weistec Anti Surge ...
$3,299.00
Pistons
The Weistec Engineering M113K Forged Pistons were designed and manufactured to address the weaknesses of the OEM M113K pistons.
Our 2618-T61 forged pistons f...
$2,599.00
Software
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$995.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$1,490.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$2,450.00
RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!
Our proprietar...
$2,250.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$995.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$2,950.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$2,950.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$995.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$1,490.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$1,490.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$2,450.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$995.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$995.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$995.00
Our proprietary ECU upgrade for the Mercedes M278 Biturbo engine offers huge gains in performance across the entire RPM range without sacrificing around town co...
$2,740.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$1,490.00
RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!
Our proprietar...
$2,250.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$995.00
Our intermediate level ECU upgrade for the Mercedes M278 engine still offers huge gains in performance across the entire RPM range, but with a slightly reduced ...
$2,480.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$995.00
RENNtech M157 Biturbo ECU+ Upgrades are TÜV approved!
Our proprietary ECU+ upgrade for the Mercedes M157 engine offers huge gains in performance across ...
$3,495.00
RENNtech M157 Biturbo ECU Upgrades are TÜV approved!
Our intermediate level ECU upgrade for the Mercedes M157 engine still offers huge gains in performa...
$2,850.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$1,490.00
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, co...
$1,490.00
RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!
Our proprietar...
$2,250.00
RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!
Our proprietar...
$2,945.00
As a leader in tuning and calibration, Weistec Engineering is proud to offer tuning packages for M113K, stock Mercedes Kompressor powered vehicles.
We offer ...
$499.00
+47 WHEEL HORSEPOWER, +32 WHEEL TORQUE
As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspir...
$899.00
Stage 1
Our 82 mm throttle body and carbon fiber airbox upgrade is the perfect combination to maximize your 55's performance.
This combination allows for a great...
$4,640.00
The R1 performance package for the Mercedes 600 V12 engines includes our proprietary ECU upgrade, upgrade in addition to our higher efficiency intercooler pump....
$3,640.00
The R1 performance package includes our proprietary ECU tune and higher efficiency intercooler pump for increased, power, performance and throttle response...
$3,990.00
The R1 performance package for the Mercedes 600 V12 engines includes our proprietary ECU upgrade, TCU (transmission control unit) upgrade in addition to our hig...
$3,640.00
The R1 performance package includes our proprietary ECU tune and higher efficiency intercooler pump for increased, power, performance and throttle response...
$3,990.00
Our performance package includes our proprietary ECU tune in addition to our full carbon fiber airbox for a gain of +78 HP and +52 TQ over stock.
...
$3,860.00
Performance package R1 includes our proprietary ECU tune and crankshaft pulley in addition to our higher efficiency intercooler pump for increased, power, ...
$4,380.00
The R1 performance package for the Mercedes 550 includes our proprietary ECU upgrade in addition to our stainless steel shorty headers designed specifically for...
$5,290.00
Our performance package includes our proprietary ECU tune in addition to our full carbon fiber airbox for a gain of +42 HP and +30 TQ over stock.
...
$3,860.00
The RENNtech R1 Performance Package is the perfect entry level performance upgrade for the CL 63 AMG. With the combination of the RENNtech ECU Upgrade...
$4,380.00
The R1 performance package for the Mercedes 550 includes our proprietary ECU upgrade in addition to our stainless steel shorty headers designed specifically for...
$5,290.00
The R1 performance package for the Mercedes 550 includes our proprietary ECU upgrade in addition to our stainless steel shorty headers designed specifically for...
$5,290.00
Our SLS performance package 1 features our proprietary ECU tuning software combined with our long tube headers unbelivable sound with performace to match.
Ou...
$10,430.00
Our performance package includes our proprietary ECU tune in addition to our full carbon fiber airbox for a gain of +31 HP and +30 TQ over stock.
...
$3,860.00
Stage 2
The R2 performance package for the Mercedes 600 V12 engines is the next step up in performance from our R1 package.
The R2 Performance package includes all t...
$8,940.00
Performance package R2 takes performance to the next level and is a step up from our R1 tuning package. The R2 performance package includes the same components ...
$7,820.00
The R2 performance package for the Mercedes 600 V12 engines is the next step up in performance from our R1 package.
The R2 Performance package includes all t...
$8,940.00
RENNtech performance package 2 includes our proprietary ECU tune in addition to our full carbon fiber airbox, 82mm throttle body kit and RENNtech stainless...
$10,960.00
The R2 performance package is the next step up from our R1 performance package and includes our proprietary ECU tune, our higher efficiency intercooler pump kit...
$13,930.00
The R2 performance package is the next step up from our R1 performance package and includes our proprietary ECU tune, our higher efficiency intercooler pump kit...
$13,930.00
RENNtech performance package 2 includes our proprietary ECU tune in addition to our full carbon fiber airbox, 82mm throttle body kit and RENNtech stainless...
$10,960.00
The RENNtech R2 Performance Package is the evolution stage of the R1 Pkg. The R2 not only brings additional power, but also gives the car a deeper spo...
$11,680.00
Our SLS performance package 2 features our proprietary ECU tuning software and long tube headers as found in package 1 with the addition of our sound and perfor...
$14,750.00
RENNtech performance package 2 includes our proprietary ECU tune in addition to our full carbon fiber airbox, 82mm throttle body kit and RENNtech stainless...
$10,960.00
Stage 3
Performance package R3 is the ultimate upgrade for your Mercedes 55 series AMG Kompressor!
The R3 performance package includes everything found in package R1...
$15,950.00
The R3 performance package is the ultimate performance upgrade for your 600 series Mercedes!
Our package 3 includes everything found in our performance packa...
$18,650.00
The R3 performance package is the ultimate performance upgrade for your 600 series Mercedes!
Our package 3 includes everything found in our performance packa...
$18,650.00
The R3 performance package is the ultimate performance upgrade for your 65 series Mercedes!
Our package 3 includes everything found in our performance packag...
$22,250.00
The R3 performance package is the ultimate performance upgrade for your 65 series Mercedes!
Our package 3 includes everything found in our performance packag...
$22,250.00
RENNtech performance package 3 is the ultimate upgrade for your 63 AMG!
Our package 3 includes everything found in our performance package 2 plus our transmi...
$15,480.00
The RENNtech R3 Performance Package is the evolution stage of the R2 Pkg. Included in the R3 Package are all upgrades from the R2 Pkg, ECU Upgrade, Di...
$27,680.00
The RENNtech R3+ Performance Package is the final evolution stage of the RENNtech R-Performance line for the M157 series and is intended as a track up...
$38,980.00
Our RENNtech R4 Performance Package features our proprietary ECU upgrade, stainless steel headers, performance sound pipe, 82mm throttle bodies and carbon fiber...
$15,090.00
Our SLS performance package 3 features our proprietary ECU tuning software and long tube headers as found in package 1 & 2 with the addition of the Akrapovi...
$23,580.00
RENNtech performance package 3 is the ultimate upgrade for your 63 AMG!
Our package 3 includes everything found in our performance package 2 plus our stainle...
$22,690.00
Supercharger
SLS 750, 750 HORSEPOWER, 654 FT-LB OF TORQUE
FOR COMPLETELY STOCK VEHICLES
MADE TO WORK ONLY WITH STOCK EXHAUST
Weistec Engineering has developed the u...
$14,999.00
SLS 825, 825 HORSEPOWER, 661 FT-LB OF TORQUE
FOR VEHICLES WITH WEISTEC HEADERS AND MIDPIPES
The SLS 825 Supercharger System is the pinnacle of p...
$18,999.00
Upgrade your Stage 1 or Stage 2 Weistec Supercharger system to our Stage 3 system with ease. Upgrading is made easy with all the parts needed to convert you to ...
$7,899.00
637 HORSEPOWER, 560 FT-LB OF TORQUE
FOR COMPLETELY STOCK VEHICLES
The Weistec Stage 1 Supercharger System features the all new ultra efficient Weistec dir...
$11,999.00
The M156 Stage 1 to Stage 2 Upgrade is for those looking to upgrade their exhaust and get more power out of their M156 Stage 1 Supercharger equipped vehicle.&nb...
$649.00
672 HORSEPOWER, 662 FT-LB OF TORQUE
REQUIRES HIGH FLOW EXHAUST
The Weistec Stage 2 Supercharger System is specifically designed for vehicles with high flo...
$11,999.00
740+ HORSEPOWER, 630+ FT-LB OF TORQUE
REQUIRES HIGH FLOW EXHAUST, REMOVAL OF SECONDARY AIR INJECTION VALVES, ROW AIRBOXES, AND SPARK PLUGS. BUILT T...
$15,599.00
Turbocharger
Weistec Engineering is pleased to release the M157 W.3 Turbo Upgrade. We have developed proprietary aerodynamics designed to optimize extreme pressure operation...
$4,999.00