2011–2016 CHEVY SILVERADO / GMC SIERRA HD · 6.6L DURAMAX LML
LML Duramax upgrades in Tucson: more power that lasts.
On an LML, protecting the fuel system comes first. Then we add air, cooling and legal tuning that keeps the emissions equipment working, all installed at your location.
- 397 hp765 lb-ft stock
- Bosch CP4.2DPF + DEF/SCR
- Allison 10006-speed automatic
- We come to youTucson & nearby
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KNOW YOUR TRUCK
Early or late LML? It changes the parts.
The LML ran six years with two body styles. Intakes and some emissions parts change by year.
GMT900 body
- 397 hp / 765 lb-ft
- First Duramax with DEF
- 2011 trucks saw the most DEF and NOx sensor problems
- Banks intake: one part for 2011–2012, another for 2013–2014
K2 body
- Same 397 hp / 765 lb-ft
- New body and interior
- Separate Banks intake for 2015–2016
- VIN 8th digit “8” on all LMLs
PERFORMANCE UPGRADES
More power that lasts.
The LML makes great power with its emissions equipment working. We protect the fuel system first, then add air, cooling and legal tuning matched to the Allison. Gains depend on your truck.
Daily driver & light towing
- S&S CP3 conversion (50-state legal)
- FASS lift pump
- Banks Ram-Air intake
- PPE deep Allison pan
- Gauges for exhaust temp and transmission temp
Typical result: a protected fuel system and better pulling.
Call nowRequest a quoteSerious towing
- Everything in Stage 1
- Mishimoto intercooler kit
- Emissions-legal Edge Evolution CTS3 tuning
- Banks Ram-Air differential cover
- Allison 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 LML Duramax. Every truck is different, so call or request a quote for yours.
CP3 conversion & lift pump
Replacing the CP4 and adding a lift pump is the best money you can spend on an LML.
Parts we install
- S&S CP3 conversion kitStart hereReplaces the CP4 with a CP3; 50-state legal, keeps the DPF and needs no tuning.
- FASS Titanium Signature SeriesLift pump with water separation and filtration for 2001–2016 Duramax trucks.
Banks Ram-Air & intercooler
A better intake and intercooler lower exhaust temps and help the turbo.
Parts we install
- Banks Ram-Air intake50-state legalEnclosed cold air intake with separate versions for 2011–2012, 2013–2014 and 2015–2016 LMLs.
- Mishimoto intercooler kitBar-and-plate intercooler with pipes for the 2011–2016 LML, about twice the factory core volume, lifetime warranty.
Emissions-legal tuning
We only install tuning that keeps your emissions equipment working.
Parts we install
- Edge Evolution CTS350-state legalFlash tuner and touchscreen monitor for 2001–2016 Duramax trucks (CARB EO D-802-13).
Transmission & differential
More fluid and better cooling are the first steps for the Allison 1000.
Parts we install
- PPE deep Allison panStart hereCast aluminum pan that holds about 4 extra quarts, with cooling fins and a magnetic drain plug.
- Banks Ram-Air differential coverTowingRear cover for the AAM 11.5-inch axle with air scoops and cooling fins.
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 rebuildIdler arm, pitman arm, tie rods and ball joints with heavy-duty parts.
RELIABILITY FIRST
Known weak points come first.
Before adding power, we make sure the LML 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, S&S, FASS, Mishimoto, Edge, PPE and Bilstein.
See all the brands we install →OWNER QUESTIONS
LML Duramax performance questions, answered.
Should I tune before the CP3 conversion?
We recommend protecting the fuel system first. More power puts more load on the CP4.
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.