WAKE UP YOUR [GM] TRUCK. KILL THE AFM.
Stop lifter failure before it starts. Our custom ECU recalibration permanently disables Active Fuel Management to restore your truck's reliability and performance.
Optimized torque and throttle response.
Trusted by thousands of GM owners.
Permanent lifter failure prevention.
SUPPORTED GM PLATFORMS.
Comprehensive AFM/DFM electronic disable, custom fuel calibration, and throttle response mapping for Gen V V8 powerplants.
SILVERADO.
1500 / 2500 HD
SIERRA.
DENALI / AT4
TAHOE.
RST / Z71 / PREMIER
YUKON.
DENALI / XL
ESCALADE.
ESV / SPORT LUXURY
SUBURBAN.
HIGH COUNTRY / Z71
PRECISION TRUCK TUNING
We specialize in GM powertrain recalibration. From AFM deletion to custom dyno tuning, we ensure your truck runs at peak performance and reliability.
AFM/DFM DELETION
Permanent electronic and mechanical bypass of Active Fuel Management systems to prevent catastrophic lifter failure and oil consumption.
CUSTOM ECU TUNING
Precision dyno-tuned software recalibration to optimize air-fuel ratios, ignition timing, and torque management for maximum output.
TRANS RECALIBRATION
Optimized transmission shift points and line pressure adjustments to eliminate sluggish gear changes and improve towing performance.
THROTTLE MAPPING
Refined electronic throttle sensitivity curves to remove factory lag and provide linear, predictable power delivery across all RPMs.
UNLEASH YOUR TRUCK
Book your session today and experience the difference of a professional calibration.
KILL THE [AFM]
BEFORE IT KILLS YOUR ENGINE.
GM's Active Fuel Management is a ticking time bomb for your lifters. We provide the permanent software solution to disable cylinder deactivation and restore your truck's reliability.
Engineered for longevity
We specialize in GM powertrain recalibration. Our tuning process is designed to eliminate mechanical failure points and optimize performance.
FULL V8 MODE: Disable AFM/DFM logic to keep all cylinders firing at all times.
LIFTER PROTECTION: Prevent the oil pressure issues that lead to collapsed lifters.
TUNED PERFORMANCE: Restore throttle response and eliminate transition lag.
Plug in. Power up. Drive different.
Our three-step calibration process ensures your truck runs at peak performance without the risk of lifter failure.
Tuning Bay 01
Performance Workbench
Need a tune?
Same-day slots available.
OBD-II SYSTEM SCAN
We perform a full diagnostic scan of your truck's ECU to identify current fault codes, sensor health, and existing calibration parameters.
CUSTOM MAP UPLOAD
Our technicians flash a custom performance map to your truck, permanently disabling AFM/DFM lifter systems and optimizing shift points.
ROAD TEST & VERIFY
We verify the new calibration under real-world driving conditions to ensure smooth power delivery and total AFM system deactivation.
Ready to [UNLEASH] it?
Book your custom tune today.
Driven by drivers who know the difference.
Real performance gains from GM truck owners who chose to kill the AFM and wake up their engine.
Based on 500+ tuned trucks
"Finally killed the AFM lifter tick. The truck feels like a real V8 again. No more hesitation, just pure power. Best investment for my Silverado."
Mark S.
"Professional tuning work. The transmission shifts are crisp and the AFM delete is flawless. My Sierra drives better than the day I bought it."
Jason R.
"These guys know GM engines inside out. They caught my lifter issue before it became a catastrophe. Solid, honest, and extremely knowledgeable."
Kevin B.
"The throttle response is night and day. No more lag, no more AFM nonsense. If you own a GM truck, you need this tune. Highly recommended."
Chris M.
"Smooth process from start to finish. The truck pulls harder and the AFM delete gives me peace of mind. Mad Max Tuning is the real deal."
Brian H.
"Honest shop with top-tier diagnostic gear. They fixed my transmission shift points and deleted the AFM. The truck is finally fun to drive again."
Alex T.
12-Month Performance Warranty
Full guarantee on all software and calibration work.
100% AFM/DFM Disabled
Permanent lifter failure prevention for GM engines.
Certified GM Specialists
Over 20 years of powertrain tuning and diagnostics.
Zero Hidden Costs
Transparent pricing with no surprise shop fees.