FullSpecDiesel
Shop / Electrical & Electronics / DSP5 SOTF Switch 2011-2016 LML 6.6L Duramax | SPELAB
DSP5 SOTF Switch 2011-2016 LML 6.6L Duramax | SPELAB
DSP5 SOTF Switch 2011-2016 LML 6.6L Duramax | SPELAB photo 1
DSP5 SOTF Switch 2011-2016 LML 6.6L Duramax | SPELAB photo 2
DSP5 SOTF Switch 2011-2016 LML 6.6L Duramax | SPELAB photo 3
SPELAB

DSP5 SOTF Switch 2011-2016 LML 6.6L Duramax | SPELAB

MPN: SPJN-EP13-00007001
$39.99
Ships From Supplier · Ships in 3–10 business days
Supplier availability is confirmed before your card is charged
Shipping calculated at checkout
Fitment verification required
Select your truck to continue

This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.

1

Select your truck to continue

Shipping calculated at checkout

Ships directly from the supplier. The final shipping cost will be shown before payment.

  • Ships from SPELAB
Need help confirming fitment?
Ships directly from our trusted supplier network.

---tab Description---

Drivers of 2011-2016 LML Duramax trucks using EFI Live DSP5 tuning can switch among five calibrated programs from the cabin for different driving and load conditions.

2011-2016 LML Duramax DSP5 SOTF Switch Overview

Unlock the full potential of your 2011-2016 LML 6.6L Duramax with our high-performance SOTF Switch. Designed for seamless integration with EFI Live's DSP5 tuning system, this switch allows drivers to toggle between five custom-tuned programs in real time—without needing to reflash through the OBD2 port. Crafted with premium materials like a knurled aluminum knob and high-temperature wiring, this switch is built to endure the heat and demands of your engine bay while offering smooth and reliable tuning transitions from the comfort of your cab.

DSP5 SOTF Switch Features

Real-Time Tuning Control : Instantly switch between up to five EFI Live tunes on the fly—no need to reprogram through OBD2.

Premium Build Quality : Aluminum knurled knob for durability and grip, with heat-resistant wires and split loom protection.

Straightforward Installation : Designed for DIY or professional install with included wiring guide and color-coded leads.

Driver-Centric Design : Mounts conveniently inside the cabin—in dashboards, switch panels, or center consoles.

NOTE: Your vehicle must be preloaded with an EFI Live DSP5 tune or EZ LYNK that supports multiple maps.

Product Specifications

Installation Locations

Mount inside cabin: dashboard, switch panel, or center console.

Wire Connection

Yellow wire to ECM Pin 11

Black wire to ECM Pin 35

Wires route through driver-side firewall grommet

Mode

Best For

Economy

Daily driving, saving fuel

Light Tow

Small trailers, balanced power

Heavy Tow

Big loads, max torque

Performance

Fast acceleration, highway driving

Race

Track days, ultimate power

Best For

• 2011-2016 Chevrolet Silverado and GMC Sierra LML Duramax trucks

• Vehicles already equipped with compatible EFI Live DSP5 tuning

• Drivers who need quick access to multiple custom tune settings

• Cabin-mounted tuning control installations

---tab Fitment---

Fitment

• 2011 LML 6.6L Duramax

• 2012 LML 6.6L Duramax

• 2013 LML 6.6L Duramax

• 2014 LML 6.6L Duramax

• 2015 LML 6.6L Duramax

• 2016 LML 6.6L Duramax

---tab FAQ---

Q: Do I need custom tuning to use this switch?

A: Yes. Your vehicle must be preloaded with an EFI Live DSP5 tune that supports multiple maps.

Q: Can I install this switch myself?

A: Yes, if you're familiar with vehicle electronics. We provide detailed wiring instructions, but professional installation is recommended for beginners.

Q: Where should I mount the switch?

A: It can be mounted in the cabin—commonly on the dashboard, switch panel, or center console.

Q: Does this switch require any software?

A: No additional software is needed, but a DSP5 tune must already be installed via EFI Live.

Q: How many tune positions can I switch between?

A: Up to five custom tune positions can be accessed.

Q: What happens if the switch fails?

A: If the switch malfunctions, the ECM may default to one tune or be unable to switch—replacement is recommended.

Q: Does the kit include a mounting bracket?

A: No. The kit does not include a bracket; a small hole may need to be drilled for mounting.

Q: Is this switch legal for street use?

A: This product is intended for off-road use only. Please check your local emissions and modification laws.

Q: Are the wires pre-labeled for installation?

A: Yes. The yellow and black wires are color-coded for easy identification during install.

---tab Shipping & Returns---

Fast Shipping Policy

Your order will be dispatched within 1-2 business days , and the package will arrive within your order's estimated date. Click for Shipping Policy

Easy Return Policy

Every order comes with a 14-day free return , which means you don't have to pay for a return slip. Click for Return Policy

Warranty
Warranty based on supplier terms

SPELAB Auto Parts: 1 year from delivery; supplier conditions apply. SPELAB offers a one-year limited warranty from delivery for material/workmanship defects under normal use, original purchaser only, with proof of purchase. Consumables, wear/cosmetic damage, improper installation, alteration, misuse and removal/installation labor are excluded. Approved remedies are repair, replacement or replacement parts at SPELAB’s discretion.

Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

SPELAB Auto Parts warranty policyView complete warranty

Product conditions

Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

Return eligibility
SPELAB allows return requests within 30 days of delivery, with authorization and undamaged goods, original packaging and accessories. Tuners are final sale. Customer pays voluntary return shipping; original shipping is not refunded. SPELAB pays return shipping for approved damaged, incorrect or manufacturing-defective items. Transit damage must be reported within two business days and incorrect items within seven days. Based on what SPELAB Auto Parts offers.
Return window
Not stated for this product; see supplier terms
Restocking fee
See supplier terms; no product-specific fee stated
Return shipping
Based on the supplier’s return policy; see terms
Made to order
No
Backorder status
Not backordered
Cancellation
Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
Warranty provider
SPELAB Auto Parts
Warranty duration
1 year from delivery; supplier conditions apply
Compatibility
Listed for specific vehicle configurations
Legal use
Street legal
Processing estimate
3–10 business days supplier processing
Shipping
Shipping calculated at checkout
Signature
No signature requirement
Supplier
SPELAB Auto Parts

Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.