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.
