Switch On The Fly Custom Tuning For (2017-2023) Chevy/GMC 2500/3500 6.6L L5P Silverado/Sierra

Name: Switch On The Fly Custom Tuning For (2017-2023) Chevy/GMC 2500/3500 6.6L L5P Silverado/Sierra
Brand: DuraMax Tuner
SKU: D06C DM1JO1371012000
Price: 1893.68 USD
Availability: InStock

$1,893.68

SKU: D06C DM1JO1371012000

In Stock

Ships by Jun 14

Free Shipping

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Description

This custom tuner unlocks the full potential of the 6.6L L5P engine, offering switch-on-the-fly tuning with multiple power levels: Sport (150 RWHP, 270 ft/lbs torque), Street (100 RWHP, 180 ft/lbs torque), Light Tow (80 RWHP, 144 ft/lbs torque), and Heavy Tow (40 RWHP, 72 ft/lbs torque). It's designed for easy, non-intrusive installation, utilizing existing steering wheel controls for tune selection. The included HP tuner allows for diagnostics and software editing.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	DuraMax Tuner
Part Number	D06C DM1JO1371012000

Videos

L5P Switch-On-The-Fly ECM Tuning for the 2017+ 6.6L Duramax!

L5P SWITCH ON THE FLY Tuning Is Finally Here! (And It Works GREAT)

FIVE POSITION ON THE FLY TUNING SWITCH by Duramaxtuner.COM

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy