Product Description
Michigan Motorsports Email Tune | LS & Gen V LT GM V8 Custom Calibration Service
Fast, Affordable Remote Tuning for 1997+ GM LS & LT Vehicles (HP Tuners Required)
Once you start adding performance parts to your GM LS or LT-based vehicle—especially a camshaft package—your PCM calibration becomes the difference between “it runs” and “it runs right.” The Michigan Motorsports Email Tune is the fastest and most cost-effective way to get a custom calibration built around your exact combo in a few simple steps.
After purchase, we’ll send you a questionnaire to capture your vehicle details and all modifications. You’ll then email your current file to tunes@michiganmotorsports.com along with your completed questionnaire. Our calibrations are designed to improve drivability, throttle response, and overall performance while keeping that stock-like manners you want on a street-driven build.
Important: You must have your own HP Tuners interface to read/write the PCM (MPVI2, MPVI3, or MPVI4). Most vehicles typically require 2 credits (some 2017+ models may require more). Credits are not included.
Key Features & Benefits
- Custom Calibration for Your Mod List: Built from your questionnaire and current tune file to match camshafts, bolt-ons, fueling changes, and driveline setup.
- Improved Power & Drivability: Performance-focused calibration designed to maximize performance and mileage while retaining smooth, stock-like street manners.
- Sharper Throttle Response: Reworks key calibration parameters to eliminate the lazy feel found in many stock files.
- Transmission Optimization Available: Shift scheduling, shift firmness, converter behavior, and shift points refined to better match performance parts and extended RPM ranges.
- Fast Remote Process: Simple email-based workflow—no shop visit required.
What’s Optimized in Each Calibration
- MAF & VE Modeling: Mass Air Flow and Volumetric Efficiency tables optimized for accurate airflow calculation and consistent fueling.
- Air/Fuel Ratio Targets: Wide open throttle fueling refined for safe, repeatable power.
- Ethanol Blend Compensation: Stoichiometric ratio configured for typical pump fuel ethanol blends.
- Ignition Timing Strategy: Timing tables calibrated efficiently for 87, 89, or 91–93 octane fuels (premium fuel allows the most aggressive timing strategy).
- Idle & Part-Throttle Control: Airflow, fueling, and timing refined—especially important for camshaft and internal engine modifications.
- Torque Management Refinement: Torque management tables relaxed where appropriate to reduce factory performance limitations.
- Transmission Calibration: Eliminates lazy shift behavior, improves shift feel, adjusts shift points for higher RPM builds, and optimizes converter tables for aftermarket stall converters.
- Speedometer & Gear/Tire Corrections: Recalibrates for aftermarket tire sizes and gear ratio changes where applicable.
Key Fitments
- Fits: 1997-newer GM LS & LT-based V8 vehicles.
- Engine Families: 4.8L, 5.3L, 5.7L, 6.0L, 6.2L (LS & LT platforms).
- Common RPO Fitments: LS1, LS6, LS2, LS3, LQ4, LQ9, LM4, L33, L59, LR4, LM7, LC9, L96, L83, L86, LT1.
How the Email Tune Process Works
- Step 1: Purchase the Michigan Motorsports Email Tune.
- Step 2: Complete the questionnaire we send you (vehicle info + full modification list).
- Step 3: Email your completed questionnaire and your current HP Tuners file to tunes@michiganmotorsports.com.
- Step 4: Receive your revised tune file and flash it using your MPVI2/MPVI3/MPVI4 interface.
Turnaround Time: Typically 2–3 business days once we receive both your completed questionnaire and your current HP Tuners file.
Product Videos
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Product Reviews
23 Reviews Hide Reviews Show Reviews
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Tuning
I just wanted to say Zak is awesome. Feel like he goes above and beyond with these tunes.
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Awesome Tune!
Zak is the best!!! Got my email tune, was so easy straight forward answered my question helped me with a small hiccup if I can choose more than 5 stars I would that’s why Michigan motorsports is the best in the business awesome parts and awesome people hands down!! Ps tune is so awesome !
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Mail order tune
Truck runs and drives amazing! Installed BTR stage 4 cam kit and doing the mail order tune was honestly very smooth. Very responsive and had the truck driving almost perfectly on the base tune. I am beyond happy with this experience If they had a 6 star I’d give it. I appreciate how fast the tune got done as well!!
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Email tune
Worked perfectly. Truck idled on first start up and ran very well.
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Tune
Great people to work with. Purchased multiple tunes and love the results.
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Absolutely Awesome!!!
Super helpful and fast communication
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Email tune
I didn't get the name of the person doing my initial tune, but he went beyond what he needed to do. I was having a LOT of issues trying to load the new tune into my truck. They wrote the tune, and did everything they could figure to do to help me with getting it figured out. Ended up being a firmware issue on the dongle. I finally got it loaded into the truck. It's a night and day difference. The truck runs WAY better and shifts perfect. I don't see how I could be any happier with it. Now for some data logging, and fine tuning. Would 100% recommend to anyone.
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Email tunes
Great tunes, great customer service!!! I’ve gotten 4 tunes from them so far. They will stick with it until it’s perfect!
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Absolutely amazing service
I paid a local tuning company 500 last year and they did a terrible job. So I looked around and found Michigan Motorsports for only 200 they have made my truck run 1000 times better the customer service is amazing I would recommend this company to anyone
