Mack CHN, CXN, CPX, CHU, CXU, Pinnacle, Granite, Vision
AC-460e AC-460p AC427 E7 350 E7 300 E7 385 V-MAC3 VMAC III AI / AMI Power Tuning Fuel Economy MPG Increase
Start saving time and money now!
Increase your fuel economy .5-1.5 mpg & add an additional 60-120HP!
Your engine will gain both HP and torque through the entire RPM band.
This helps the low end torque to reduce downshifting, improves throttle response and increases fuel mileage!
"Why Do Mack Engines Feel So Sluggish??"
Ever catch yourself thinking, "This Mack 427/460 doesn't run nearly as well as my old 400hp Cummins?"
THERE'S A GOOD REASON! The 427 or 460 label on your engine doesn't tell you what Mack actually rated it for. In fact, it's VERY rare to find a 427 or 460 with advertised power that matches its name. Most of these engines were set between 318hp and 343hp from the factory, and you won't know the real rating unless you check the Vehicle Info tab in the software. Here are some examples!
It's hard to believe, but even the "best" stock Mack file—the "460P"—is only rated at 343HP! Don't worry, though. We can make your Mack run better than you ever imagined by simply removing the ECU/ECM from the engine and sending it in for a power upgrade. We typically configure 427/460 engines to 525hp or 550hp, depending on your transmission, GVW, terrain, and other factors. Feel free to contact our technical department for more information on what power setting is best for your specific situation!
Call 423-709-7755 for details, open 9am - 5pm EST Monday - Friday.
After hours you can email questions to: info@heavydieseltuner.com
Mack ECU Re-Flash Service 1998-2007
- Increase HP & TQ to achieve maximum fuel efficiency!
- Better driving experience with increased throttle response!
- Wider power band through the RPM range!
Up to an extra 120HP without changing injectors or turbo!
Power Tuning - $1599.00
This service requires removing the ECU and mailing it to our location. Our standard turn-around time is same day as delivered or 1 day, depending on our workload.
Re-programming service requires the removal of the ECU from the side of the engine and shipping it to our facility.
This service DOES NOT affect EGR function or VGT turbo operation and is for PERFORMANCE / FUEL ECONOMY GAINS ONLY
With this pay-in-advance option, you'll receive a prepaid UPS Next Day Air label by email that includes $1000 insurance to ship your ECM in for the service. Return shipping via UPS Next Day Air is also included in the $1599 fee.
Are you in the market for a Turbo Upgrade also?
Our Stage 1 Billet 75mm Quick Spool turbo was designed specifically as a budget friendly, performance focused upgrade that does not sacrifice power for turbo lag!
Does your truck have the smaller stock charger that the 385hp and lower engines use and you're looking for an upgrade? Maybe your 427/460's charger is needing replacement? This is the perfect time to upgrade to a new performance billet charger!
These Stage 1 Quick Spool chargers will work on stock engines rated 400 - 460hp and also the 300 - 385hp engine that have had larger injectors installed. To gain the most from this turbo and get LIGHTNING fast spool up times our custom ECU tuning is highly recommended. This turbo combined with our custom 550hp tuning is the perfect combination of instant power that is not only reliable but also cooler on exhaust temps compared to the factory turbo which can all achieved on the stock 400 - 460 engines original injectors!
Key Features
- Up To 10 PSI Boost Increase Over Stock
- 360 Degree Thrust Bearing
- T6 Twin Flow Turbine Outlet
- V-band Exhaust and Intake Housings
- Dual Piston Ring Seals
- High Quality Copper Journal Bearings
- Upgraded Diffuser Plates
- Triple Balanced – up to 180,000 RPM
- Bolts Up To Factory Hot Side (manifold, down pipe and oil feed/drain)
- No Core Charge
- 1.15 AR Custom Cast Exhaust Housing
- 75mm Billet Aluminum Compressor Wheel
- Premium install kit included - Turbo studs, nuts, gaskets.
- Unlimited Mileage 1 Year Warranty
2008 - 2013 Mack MP7 and MP8 products:
2014 - 2024 Mack MP7 and MP8 Products: