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SOTF Switch
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- ENGINE
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POWERSTROKE
- DPF Delete Exhaust
- All In One Kit
- EGR Delete Kit
- CCV PCV Reroute Kit
- DPF Delete Dual Exhaust
- Tuner
- Intercooler Pipe Kit
- Up-Pipe
- Intercooler
- CP4 Bypass Kit
- CCV Recirculating Kit
- Muffler
- Downpipe
- Intake Manifold
- Air Intake Kit
- Radiator
- Oil Catch Can
- Differential Cover
- Coolant Tube
- Valve Cover
- Transmission Pan
- Coolant Expansion Tank
- Exhaust Manifold
- Turbo
-
DURAMAX
- Tuner
- EGR Delete Kit
- CCV Reroute/delete kit
- DPF Delete Exhaust
- DPF Delete Dual Exhaust
- All In One Kit
- Muffler
- Up-Pipe
- Downpipe
- Intake Elbow Bridge Kit
- Intercooler
- Intercooler Pipe Kit
- Air Intake Kit
- Radiator
- Differential Cover
- Valve Cover
- Oil Pan
- Cooler Line Kit
- Fuel Sump Return Kit
- Tonneau Cover
- Coolant Tube
-
DODGE RAM
- Tuner
- EGR Delete Kit
- CCV Reroute/delete kit
- EGT Relocation Kit
- DPF Delete Exhaust
- All In One Kit
- Muffler
- Air Intake Kit
- Intercooler
- Intercooler Pipe Kit
- Radiator
- Valve Cover
- Differential Cover
- Intake Manifold
- Coolant Bypass Kit
- Coolant Leak Repair Kit
- Fuel Rail Plug
- Fuel Tank Sump Kit
- Oil Catch Can
- Oil Pan
- Coolant Tube
- ALL-IN-ONE KITS
- CATEGORIES
- ON SALE
Let customers speak for us
from 5700 reviews
Loved the kit good fit and finish and easy to install. The little extraction tool helped immensely for that pesky bolt on the back. I purchased this kit because of the good reviews and I seen one on a 2018 Chevy Duramax that had been fully deleted and was asking the owner questions about the kit and where he bought it, he said SPELAB it was well worth the money and made it easier to put oil in the truck and yes does make it a lot easier to fill the engine with oil and if the old plastic ccv system cracks do to heat and and age it pushes oil on the engine and could cause a fire so it was well worth the money and piece of mind. So if you are looking for a CCV reroute kit I highly recommend this kit.
do not treat head studs like ordinary bolts. Clean and chase every block thread, verify hole depth and any fluid passages, then apply the supplied assembly lubricant only where specified—especially on nut and washer contact surfaces.
Took the gamble on these. Ive installed arp studs for customers and I did these in my truck. Few thousand miles now and no issues. I can’t say they are better than arp but I can say they are just as good for just half of the price.
Coolant Reservoir for 2011-2019 Ford 6.7L Powerstroke Coolant Overflow Tank | SPELAB
Good quality coolant tank with fair price!
First off I purchased this intake horn/w grid heater relocation because of the price and the heating element came as a kit. I am not a truck mechanic and this part wasn't very easy for me to swap out. The parts were shipped extremely fast and well packaged this intake horn was installed in conjunction with Spelab's rid heater delete kit. I was also nervous to do this swap myself because I haven't messed with any of these parts previously. But Praise God I was able to take everything apart and install the new parts without any issues. The videos were alright also looked up a few videos on YouTube to get a better idea of what I was up against before I started. Overall Spelab has been a great experience, all the parts were very nice looking and well made. I will definitely do business with Spelab in the future. I am considering doing the head stud kit.
Works great on my 08 f250, thank you spelab!
Billet Aluminum Valve Cover for 2008-2010 Ford F250 F350 F450 F550 6.4L Powerstroke | SPELAB
It’s an exhaust not really much to screw up. Exactly what I thought it would be.
Installed on my 2015 ram. About 10 hours start to finish. Also did a valve adjustment. So far so good, doing a hot retorque in the next few days, but I’m set on max, 200hp, tune and it sounds amazing. If your deleted and tuned you need these.
Muy buena calidad y excelente servicio. Dios me los bendiga
Easy to install looks great 👍🏽
Extremely Happy!!
much cheaper than big brand and seems good quality, thank you Spelab.
Price was great w heavy discounts. Great 5R110 6.0 powerstroke aluminum, Red, deep pan. W bolts and gasket. Great packing and instructions.
This kit came with everything I needed to get the job done. There's a great SPE lab video online for installation help. Every piece felt quality and was simple enough to put together. Had extra hose after running all the way to the back of my rig so there's plenty provided. I just ran mine to atmosphere so there's a popcorn sound at the back of my rig now but it doesn't smell terrible. Definitely recommend this upgrade for anyone who wants a healthy engine. As for how hard the installation is, if you can change the CCV box you can install this kit.
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:
- Routing the wiring harness from the OBD‑II port to your chosen switch location.
- Connecting power and ground.
- 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.
