4.0" Exhaust Cutout

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4'' DPF Back Exhaust Single Side Exit 2011-2016 6.7L Powerstroke Ford F250 F350 F450
Johnny P
Fit Great!

Fit great! If you have a short bed, you have to cut the pipe shorter but other than that it was easy! Sounds awesome as well!

4'' DPF Back Exhaust Single Side Exit 2011-2016 6.7L Powerstroke Ford F250 F350 F450
SPELAB 2011-2019 Ford 6.7L Powerstroke EGR Cooler Delete Kit
Anonymous
Works

Works great

SPELAB 2011-2019 Ford 6.7L Powerstroke EGR Cooler Delete Kit
3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Matthew J
super easy and worth the money

took like 2 hours to do with all the right tools and has much better throttle response. would highly recommend!!

3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Differential Cover 10.25'/10.5' 12 Bolts for Ford 1986-2024 Ford F250 F350 | SPELAB
Haden Holaway
SPELAB 12 Bolt Differential Cover

Have had the differential cover on for almost a week now and have had zero issues. The cover looks very nice and I now having the drain & fill plugs and the sight glass will make fluid changes a lot easier. Only recommendation would be to swap from Allen head bolts to regular ones as they are a bit easier to torque but other than that love it. FYI for anyone wondering I torqued all my bolts to 22 ft/lbs and have had zero leaks, couldn't find an exact torque spec but this seems to suffice!

Differential Cover 10.25'/10.5' 12 Bolts for Ford 1986-2024 Ford F250 F350 | SPELAB
Worry-Free Purchase
Gabe Potter
Great for the price

Great for the price and pretty simple install. Did have to modify one bracket but other than that it was a slick install and great product

Worry-Free Purchase
3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Jack
This Fits With Stock Fuel Line

I got burned with a Banks manifold when their #1 proprietary fuel line split on me. This manifold takes care of that! It was an easy swap out, and worked with the banks plate.

3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Intake Manifold for 2011–2019 Ford F250 F350 F450 F550 6.7L Powerstroke | SPELAB
Chris Potratz
Great Product

Great Product. Quality seems really good too.

Intake Manifold for 2011–2019 Ford F250 F350 F450 F550 6.7L Powerstroke | SPELAB
3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Dezi Parnell
Pusher intake horn

Bought a intake manifold from spelab for my 3500 6.7 cummins, and it works perfect, shipping was fast all parts included. Great company to deal with, highly recommended.

3.5" Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB
Intake Manifold for 2011–2019 Ford F250 F350 F450 F550 6.7L Powerstroke | SPELAB
Daulton Amick
Good quality

Installation was easy

Intake Manifold for 2011–2019 Ford F250 F350 F450 F550 6.7L Powerstroke | SPELAB
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

4‑inch Exhaust Cutout FAQ

A 4‑inch exhaust cutout is a valve installed in your exhaust system that allows you to switch between a quiet, stock‑style path and a straight‑through, louder path. The 4‑inch diameter matches common aftermarket exhaust piping on diesel trucks.

Installing a cutout lets you control your truck’s sound and exhaust flow on demand. Benefits include:

  • Louder exhaust tone for a more aggressive sound when wanted.
  • Potentially improved throttle response by reducing backpressure in the straight‑through mode.
  • Easy switching between a quiet daily‑drive mode and a performance‑oriented open mode.
  • Electric cutouts come with a remote or dash switch, letting you open/close the valve from inside the cab. They’re convenient for frequent changes.
  • Manual cutouts require you to reach under the truck and turn a lever. They’re simpler, have fewer electrical components, and are often more affordable.

Most SPELAB 4‑inch cutouts are designed to fit popular diesel platforms:

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

Always check the product listing for exact year‑range and engine confirmation.

Installation is straightforward for most DIYers:

  • The kit includes a Y‑pipe that welds or clamps into your existing exhaust.
  • Wiring for electric cutouts typically runs to a 12V source and a switch.
  • No tuning or ECU changes are required.

Basic welding skills or exhaust clamps are needed for the pipe connection.

Yes, but consider:

  • Noise – open cutouts are significantly louder and may not be street‑legal in some areas.
  • Backpressure – running open can reduce low‑end torque on some turbo‑diesel engines.
  • Heat – exhaust gases exit closer to the cab, so ensure nearby components are heat‑shielded.
  • Electric cutouts – keep the actuator and wiring clean; apply anti‑seize on the valve shaft annually.
  • Manual cutouts – lubricate the pivot point periodically to prevent seizing.
  • All types – inspect for rust (especially on mild‑steel units) and ensure bolts/clamps stay tight.

No. Since the cutout is downstream of oxygen sensors and diesel particulate filters (DPF), it does not interfere with emissions systems or trigger fault codes. It’s a non‑intrusive modification.