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**Disclaimer:** Full delete kits remove emissions control systems. These modifications may not be street legal in all jurisdictions. Check local regulations before installation. Our best-selling diesel truck delete kits and tuning harnesses give your Ram Cummins, Ford Powerstroke, or Chevy Duramax the performance upgrade you're after. These proven components eliminate restrictive emissions equipment so your engine breathes easier and runs cleaner. Shop top performers below. ## Best-Selling Diesel Truck Performance Parts You've got options when it comes to upgrading your diesel. Our best sellers represent the parts that real truck owners trust to deliver results—whether you're running a 2013-2018 Ram 6.7L Cummins, 2017-2019 Ford 6.7L Powerstroke, or 2011-2016 Chevy Duramax LML. ### Why These Parts Lead Full delete bundles strip out the DPF (diesel particulate filter) and EGR (exhaust gas recirculation) system that choke your engine's potential. A single delete targets one system; a full delete handles both. The result: better throttle response, cooler engine temps, and no more regen cycles interrupting your day. Tuner harness plug kits from Shibby Engineering are the connector between your truck and custom tuning software. They're engineered for direct fitment on Cummins 6.7L (2007-2024) and Powerstroke 6.7L/6.4L (2008-2025) engines—no splicing, no guessing. ### How to Choose **For Ram Cummins owners:** Your year matters. The 2013-2018 models have different architecture than 2019-2021 trucks, so grab the bundle matched to your truck's build date. **For Powerstroke guys:** Both the 2015-2016 and 2017-2019 full delete bundles are bestsellers because they're bolt-on ready and pair seamlessly with tuning software. **For Duramax LML:** The 6.6L full delete bundle clears emissions junk and lets that turbo actually work. Don't skip the DPF and CAT delete pipes—these are load-bearing parts of any delete system. Also explore our EGR delete options if you want to start with a single-system approach, and check out tuning software to maximize your delete investment. Ready to upgrade? Select your truck's year and engine displacement above and add your kit to the cart. Shipping protection keeps you covered.

What's the difference between a DPF delete and a full delete?

A DPF delete removes only the diesel particulate filter. A full delete removes both the DPF and the EGR (exhaust gas recirculation) cooler and valve. Full deletes give you more performance gain because you're eliminating two restriction points instead of one. Most guys go full delete if they're already committed to the mod.

Do I need tuning software with a delete kit?

Yes. A delete kit removes the hardware, but tuning software recalibrates your engine computer to run properly without those emissions systems. Without tuning, your truck will throw codes and run rough. That's why tuner harness kits and software go hand-in-hand.

Which kit fits my 2018 Ram Cummins?

The Ram Cummins 6.7 Full Delete Bundle | 2013-2018 is your match. Make sure you grab the 2013-2018 version, not the 2019-2021, because the mounting points changed in the newer generation.

Will a delete kit damage my engine?

No. A properly installed delete kit actually improves engine longevity by reducing heat and backpressure. The emissions systems (DPF and EGR) trap soot and recirculate hot exhaust, which stresses your engine. Removing them lets your 6.7L or LML run cooler and cleaner.

Can I install this myself?

Full delete kits require mechanical skill and the right tools. You'll need to remove exhaust components, disconnect sensors, and install new piping. If you're comfortable with wrench work, you can do it in your driveway. Otherwise, have a diesel shop handle installation. Factor in 6-8 hours of labor.

What about DEF (diesel exhaust fluid) after a delete?

You won't need DEF after a full delete because the SCR (selective catalytic reduction) system that uses DEF gets removed along with the rest of your emissions gear. One less fluid to buy and one less tank to monitor.

Is this legal?

Emissions deletes are illegal for street use in most states and federally regulated for on-road vehicles. These kits are sold for off-road and competition use only. Check your local laws before purchasing or installing.