2017+ CHEVY SILVERADO / GMC SIERRA HD · 6.6L DURAMAX L5P
L5P Duramax upgrades in Tucson: more power that lasts.
The L5P makes big power stock. We add legal power and better cooling that keep the emissions equipment working, all installed at your location.
- 445–470 hp910–975 lb-ft stock
- Denso HP4factory lift pump
- Allison 6- or 10-speedautomatic
- We come to youTucson & nearby
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KNOW YOUR TRUCK
Which L5P? It changes the parts.
The L5P has had two body styles, two transmissions and a power bump. Your year tells us which parts to bring.
Allison 1000 6-speed
- 445 hp / 910 lb-ft
- Older body style
- Banks Ram-Air and Derringer for 2017–2019
- PPE pans made for 2017–2019
Allison 10L1000 10-speed
- 445 hp / 910 lb-ft through 2023
- 470 hp / 975 lb-ft from 2024 (new turbo and injectors)
- New body; different pans and diff cover
- Banks Ram-Air and Derringer for 2020–2023
PERFORMANCE UPGRADES
More power that lasts.
The L5P makes big power with its emissions equipment working. We add legal tuning, air and cooling. Gains depend on your truck.
Daily driver & light towing
- Banks Ram-Air intake
- Banks MAP sensor relocation kit
- PPE deep transmission pan
- PPE deep oil pan
Typical result: cooler fluids and cleaner sensors.
Call nowRequest a quoteSerious towing
- Everything in Stage 1
- Banks Derringer tuner with iDash (2017–2023)
- Banks Ram-Air differential cover
- Front end rebuilt with heavy-duty parts
Typical result: strong, steady towing with temperatures under control.
Call nowRequest a quoteUPGRADES BY CATEGORY
Pick a category to see the parts we install.
Tap a tile to see what it does and the parts we install on the L5P Duramax. Every truck is different, so call or request a quote for yours.
Banks Derringer & iDash
We only install tuning that keeps your emissions equipment working. The Derringer covers 2017–2023 L5Ps.
Parts we install
- Banks Derringer tuner50-state legalInline tuner with 6 power levels and safety limits (CARB EO D-161-149 for 2017–2022, D-161-156 for 2023).
- Banks iDashGauge and data logger that works with the Derringer to watch temps and pressures.
Banks Ram-Air intake
A better intake lowers exhaust temps and soot.
Parts we install
- Banks Ram-Air intake (2017–2019)50-state legalEnclosed cold air intake made for the 2017–2019 L5P (CARB EO D-161-118).
- Banks Ram-Air intake (2020–2023)Cold air intake with Banks’ air mass control module so it doesn’t set a check engine light.
- Banks Ram-Air intake (2024 and 2025–26)Separate versions for 2024 and for 2025–26 trucks, each with Banks’ control electronics.
- Banks MAP sensor relocation kitMoves the MAP sensor away from soot buildup.
Oil, transmission & differential
More fluid and better cooling help the engine, Allison and axle live longer in Tucson heat.
Parts we install
- PPE deep transmission panStart hereCast aluminum pans for the 6-speed (2017–2019) and 10-speed (2020+); about 4 extra quarts.
- PPE deep oil panCast aluminum pan that adds 2 quarts and drains completely; versions for 2017–2019 and 2020+.
- Banks Ram-Air differential coverTowingBanks #19288 (Black Ops) for the AAM 11.5"/12" 14-bolt rear axle on 2019+ Ram and 2020+ Chevy/GMC HD. Doesn’t fit Ram trucks with rear air suspension alone, and Ram trucks with the factory rear sway bar need Banks’ spacers.
- PPE or aFe rear differential coverCast aluminum covers for the AAM 11.5/12-inch axle on 2020+ trucks, with cooling fins.
- Banks Ram-Air differential cover (2017–2019)Earlier Banks cover for 2017–2019 trucks with the AAM 11.5-inch axle.
Shocks & front end
We don’t do wheel or tire work.
Parts we install
- Bilstein 5100 shocksFirmer, more controlled ride loaded or empty.
- Front-end rebuildTie rods and ball joints with heavy-duty parts.
RELIABILITY FIRST
Known weak points come first.
Before adding power, we make sure the L5P Duramax’s known weak points are handled, so the upgrade lasts.
How mobile service worksTell us your truck and where it is, we diagnose on site, you approve a written estimate, and we fix it where it sits.
See how it works →Name-brand partsWe install proven brands like Banks, PPE, aFe and Bilstein.
See all the brands we install →OWNER QUESTIONS
L5P Duramax performance questions, answered.
Is there a Derringer for my 2024+ L5P?
Banks lists the Derringer for 2017–2023 trucks. Call us and we’ll check what’s legal for your year.
Can I add power and keep my DPF and DEF?
Yes. We install emissions-legal tuning and parts that work with the factory equipment.
Do you install at my location?
Most upgrades, yes. We come to your home, shop or job site around Tucson.
LET’S TALK ABOUT YOUR TRUCK
Call, text or request a quote.
Tell us your year, mileage and what you want done. We’ll recommend the right build, quote it and come to you.