SOTF Switch

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Intake Horn/Manifold Grid Heater for 2007-2024 Dodge Ram 2500/3500/4500/5500 6.7 Diesel | SPELAB
Cody Osborne
Works Great

Install was easy and straightforward. Everything lined up nice. Peace of mind knowing there are no worries about potential destroying my engine, due to a nut.

Intake Horn/Manifold Grid Heater for 2007-2024 Dodge Ram 2500/3500/4500/5500 6.7 Diesel | SPELAB
Differential Cover For Ford 9.75″ 12 Bolts Rear Axle | SPELAB
GARRETT OLVERA
Excellent

Highly recommend for 2009-14 F150 4x4 3.5 ecobeast!

Differential Cover For Ford 9.75″ 12 Bolts Rear Axle | SPELAB
DPF/DEF/EGR All-in-One Delete Kit for 2019-2021 Dodge Ram 6.7L Diesel 2500 3500
Eugene Hake
Good bang for buck

Installed myself at home took a little over a week for everything to show up, install went tough but that was the trucks fault parts were all good and the tunes run smooth, getting a little over 2 mpg average better fuel economy definitely worth the money.

DPF/DEF/EGR All-in-One Delete Kit for 2019-2021 Dodge Ram 6.7L Diesel 2500 3500
3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Brian C.
Intake horn

Made my truck run much better without having to worry about the grid heater bolt falling down in cylinder 6

3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Aluminum Radiator Cover for 2010-2018 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Darby Poulsen
Fit is good

So far it looks nice and fit pretty well.

Aluminum Radiator Cover for 2010-2018 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
4‘’ 2011-2023 Ford 6.7 Powerstroke DPF Delete Race Pipe w/Muffler | SPELAB
Mike M.
Very Well Built

Welds look solid and professional quality, I have not installed them yet but I did put them in place under truck to ensure length and thus far everything looks good. I will give an update after install and on the road with them

4‘’ 2011-2023 Ford 6.7 Powerstroke DPF Delete Race Pipe w/Muffler | SPELAB
EGR Block-off Plate For 2009-2025 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Michael D.
EGR Block-off Plate For 2009-2025 Dodge Ram 2500/3500 6.7L Diesel

Product came in earlier than expected and is made out of high quality materials. SPELAB hasn't let me down yet!!

EGR Block-off Plate For 2009-2025 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Worry-Free Purchase
Ron Field
F250 coolant reroute kit.

The product installed perfectly high-quality superior part. For my 2022 f350. Coolant reroute kit.

Worry-Free Purchase
EGR/DPF Delete Kit 2017-2025 L5P 6.6L Duramax Applicable Products | SPELAB
Corey Yergeau
Fits perfectly

Everything works great all parts fit hangers fit have pictures if needed

EGR/DPF Delete Kit 2017-2025 L5P 6.6L Duramax Applicable Products | SPELAB
Intake Manifold for 2011–2019 Ford F250 F350 F450 F550 6.7L Powerstroke | SPELAB
Lee Mullert
2014 F350

This is a really nice set up inexpensive but well-made. Make sure you use 1/4 inch drive and torque wrench, if you get the half socket 10mm and multi size extensions even better it’ll make getting those two back bolts easy

Intake Manifold for 2011–2019 Ford F250 F350 F450 F550 6.7L Powerstroke | SPELAB
SPELAB 2006-2007 6.6L Duramax LBZ EGR Delete Kit w/High Flow Intake Elbow
CP
EGR delete is mint

Makes truck breathe better and will definitely blow your y bridge out so do that while you’re in there looks great and fits up pretty good not perfect

SPELAB 2006-2007 6.6L Duramax LBZ EGR Delete Kit w/High Flow Intake Elbow
EGR Throttle Valve Delete for 2007-2025 Dodge Ram 6.7L Diesel | SPELAB
Drew Cook
Great Fit and Easy Install

Installed this SPELAB EGR Throttle Valve Delete on my 6.7 Cummins and the fitment was perfect. The kit was well made, installation was straightforward, and all the necessary parts were included. Everything lined up as it should and the truck runs great. Highly recommend for anyone looking for a quality replacement component.

EGR Throttle Valve Delete for 2007-2025 Dodge Ram 6.7L Diesel | SPELAB
3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Nick F
Budget friendly

I originally had the Banks Monster Ram intake with grid heater delete, and costed $1200. Recently I decided to give Spelab a try for their 3.5” pusher style intake with grid heater delete. Fraction of the price and performs the same. Only regret I have was my purchase of Banks.

3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Heating Element for 2007.5–2024 Dodge Ram 6.7L Diesel | SPELAB
Shawn Plank
Heater element

Great product

Heating Element for 2007.5–2024 Dodge Ram 6.7L Diesel | SPELAB
Worry-Free Purchase
Isaac Wood

Good product fast sipping was not that bad of a job

Worry-Free Purchase

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.