Light Tow Tune Only for EFI Live Spade - LML (2015)

If you tow a few thousand pounds here and there but still want better throttle response, smoother acceleration, and a little extra punch, this Light Tow Tune is made for you. It’s designed specifically for your 2015 Duramax and gives you just the right amount of added performance without going too far. With up to +55 RWHP and +99 ft-lbs of torque, your truck feels more responsive but still completely manageable for everyday use. Backing up with a trailer gets easier, shifting improves, and overall drivability just feels more natural. Best of all, it’s 50-state legal and keeps all emissions equipment fully intact, so there’s no need to worry about inspections or compliance. This Light Tow Tune is built for 2015 Silverado and Sierra HD trucks running the 6.6L Duramax LML, and it’s ideal for drivers who regularly tow under 8,000 lbs. It’s fully emissions intact and 50-state legal under E.O. No. D-845, so you can run it worry-free across the country. The calibration includes over 100 changes from stock and was developed to safely wake the truck up without pushing it beyond factory limitations. It features SMART EGT Control, which automatically manages exhaust gas temperatures during sustained pulls, and built-in air-fuel ratio limits to help control soot. The tune also retains full turbo brake functionality and improves pedal sensitivity for better low-speed maneuvering with a trailer. No cutting wires, no sensor splicing, and no guesswork, just a clean flash through your EFI Live SPADE device. For trucks with larger tires or drivetrain modifications, pairing this tune with TCM tuning ensures your transmission shifts stay in sync with the added power.