SOTF Switch

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For 4''/5'' DPF Delete Race Pipe for 2013-2018 Dodge Ram 2500/3500 6.7 Diesel | SPELAB
Dalton Richards
Absolutely perfect fit and easy to install!

Absolutely perfect fit! Super easy to install did move gasket from downpipe to DPF and reused but overall extremely pleased!

For 4''/5'' DPF Delete Race Pipe for 2013-2018 Dodge Ram 2500/3500 6.7 Diesel | SPELAB
EGR Delete Kit For 2011-2025 Ford 6.7L Powerstroke Diesel F250 F350 F450 F550 | SPELAB
Dallon
Does the job

I bought the Chinese knock off because SPE Motorsports won’t sell it. As advertised. I’m sure it’ll do.

EGR Delete Kit For 2011-2025 Ford 6.7L Powerstroke Diesel F250 F350 F450 F550 | SPELAB
SPELAB Cold Air Intake Kit For 2007.5-2012 Dodge Ram 6.7L Diesel Ram 2500 3500 4500 5500
Anonymous
Purchased for my 2011 ram 2500 6

Purchased for my 2011 ram 2500 6.7 Cummins. Great product all the sensors holes lined up perfectly helped with acceleration a lot more responsive now on acceleration

SPELAB Cold Air Intake Kit For 2007.5-2012 Dodge Ram 6.7L Diesel Ram 2500 3500 4500 5500
SPELAB Cold Air Intake Kit For 2007.5-2012 Dodge Ram 6.7L Diesel Ram 2500 3500 4500 5500
Caleb
Installed on a 14 3500, seamless install

Installed on a 14 3500, seamless install maybe takes 10min. Definitely opens intake up. Noticeably more sound. Not sure any performance gains other than throttle response

SPELAB Cold Air Intake Kit For 2007.5-2012 Dodge Ram 6.7L Diesel Ram 2500 3500 4500 5500
Intake Manifold for 2011–2019 Ford F250 F350 F450 F550 6.7L Powerstroke | SPELAB
Dennison Collard
Full delete

I’ve purchased the EGR and CCV deletes as well as the upgraded intake manifold, upper radiator hose and thermostat block, and compressed air piping. Overall I am very satisfied with the quality and fit of all of the parts. Some of the instructions could use a little more detail, but if you are in any way mechanically inclined, you’ll be able to do these yourself no problem. I did have to make a very small modification to the aluminum quick connector on the upper radiator hose in order to get it to lock in place, but other than that everything has been great!

Intake Manifold for 2011–2019 Ford F250 F350 F450 F550 6.7L Powerstroke | SPELAB
Worry-Free Purchase
Conner Burch

Works amazing and easy to install

Worry-Free Purchase
Upper Coolant Pipe for 2010-2024 6.7L Dodge Ram 2500HD/3500HD Radiator Pipe | SPELAB
Joe Gerardi
Love those pipes!

too good to not change them!

Upper Coolant Pipe for 2010-2024 6.7L Dodge Ram 2500HD/3500HD Radiator Pipe | SPELAB
Upper Coolant Tube for 2017-2025 L5P 6.6L Duramax Chevy/GMC 2500HD/3500HD Coolant Pipe Kit | SPELAB
Braeden Baluch
Pipes looking good!

Slowly piecing this thing back together for the freedom meet this weekend 🤟

Upper Coolant Tube for 2017-2025 L5P 6.6L Duramax Chevy/GMC 2500HD/3500HD Coolant Pipe Kit | SPELAB
Coolant Reservoir for 2001-2007 LB7 / LLY / LBZ DURAMAX Coolant Overflow Tank | SPELAB
Cory Warner
Needs more blue 💙

Needs more blue 💙

Coolant Reservoir for 2001-2007 LB7 / LLY / LBZ DURAMAX Coolant Overflow Tank | SPELAB
SPELAB 2.0/2.25/2.5/3.0 Inch Remote Electric Exhaust Cutout Kit
Anonymous
“Sleeper” certified

I put these on a ugly farm truck with a cammed LS swap and to keep the ugly “sleeper” feel we had these installed and they worked great for us 👍🏽👍🏽👍🏽

SPELAB 2.0/2.25/2.5/3.0 Inch Remote Electric Exhaust Cutout Kit
CCV Reroute/Delete Kit 2011-2025 Ford 6.7 Powerstroke F250 F350 F450 F550 w/Catch Can | SPELAB
Anonymous
Fast delivery and nice finish on parts

Fast delivery and nice finish on parts

CCV Reroute/Delete Kit 2011-2025 Ford 6.7 Powerstroke F250 F350 F450 F550 w/Catch Can | SPELAB
5'' DPF Back Exhaust Single Side Exit for 2013-2025 Dodge Ram 2500/3500 6.7L Diesel Filter-Back Exhaust
chase
Best DPF back I've ever had

I really do think this is the best DPF back I've ever had. I said it in the video, but the fitment here is MUCH better than MBRP or AFE. I have had both and this one installed so much easier, and much higher quality metal

5'' DPF Back Exhaust Single Side Exit for 2013-2025 Dodge Ram 2500/3500 6.7L Diesel Filter-Back Exhaust
Cold Air Intake for 2011-2016 Ford F250 F350 F450 6.7L Powerstroke | SPELAB
James Steele
Made wrong didn't

Made wrong didn't fit

Cold Air Intake for 2011-2016 Ford F250 F350 F450 6.7L Powerstroke | SPELAB
Upper Coolant Pipe for 2011-2016 LML 6.6L Duramax Radiator Pipe | SPELAB
Timothy Iberg jr
Easy install

Hi yooo sharing some tips to make everybody's life easier! Slip the rubber boots on before fitting the pipe, leave plenty of rubber past each clamp. It's an easy installation.

Upper Coolant Pipe for 2011-2016 LML 6.6L Duramax Radiator Pipe | SPELAB
EGR Delete Kit For 2011-2025 Ford 6.7L Powerstroke Diesel F250 F350 F450 F550 | SPELAB
Gavin Plasschaert
Great

Great product/quality

EGR Delete Kit For 2011-2025 Ford 6.7L Powerstroke Diesel F250 F350 F450 F550 | SPELAB

SOTF (Shift‑On‑The‑Fly) Switch FAQ

A SOTF (Shift‑On‑The‑Fly) switch is a rotary or push‑button controller that lets you change your diesel truck’s performance tune while driving, without stopping or connecting a laptop. It plugs into your vehicle’s diagnostic port or existing tuning harness.

The switch selects between pre‑loaded tune files stored in your engine control unit (ECU). When you turn the knob, it sends a signal to the ECU to activate a different tune map, instantly changing power, torque, and transmission behavior.

Yes. The switch itself is just a selector. Your ECU must already be flashed with a multi‑tune file that supports SOTF functionality. This requires a tuning device (like EZ Lynk, EFI Live, or a custom tuner) and a compatible tune package.

SPELAB switches are designed to work with popular tuning platforms:

  • EZ Lynk – most common for Ford Powerstroke and Duramax.
  • EFI Live – widely used for Duramax (LB7, LBZ, LMM, LML).
  • Custom tuning suites that offer multi‑position SOTF support.

Always verify with your tuner that your specific tune file supports the switch.
  • 5‑mode – five distinct tune profiles (e.g., Stock, Tow, Economy, Performance, Race).
  • DSP5 – a specific five‑position tuning standard for Duramax engines, often used with EFI Live.

The number of positions matches the number of tune files loaded in your ECU.

Yes, most DIYers can install it in under an hour with basic tools. The process involves:

  1. Routing the wiring harness from the OBD‑II port to your chosen switch location.
  2. Connecting power and ground.
  3. Mounting the switch and securing the wiring.

Detailed instructions are included with each SPELAB switch kit.

SPELAB offers model‑specific switches for:

  • Ford Powerstroke (6.7L, 6.4L, 6.0L)
  • GM Duramax (LB7, LBZ, LMM, LML, L5P)
  • Dodge Ram/Cummins (5.9L, 6.7L)

Choose the switch that matches your truck’s year, engine, and tuning platform.