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2007½–2010 CHEVY SILVERADO / GMC SIERRA HD · 6.6L DURAMAX LMM

LMM Duramax upgrades in Tucson: more power that lasts.

The LMM keeps its emissions equipment, so we upgrade it the legal way: fuel, air, cooling and tuning that works with the DPF, all installed at your location.

  • 365 hp660 lb-ft stock
  • DPF + EGRBosch CP3 pump
  • Allison 10006-speed automatic
  • We come to youTucson & nearby

KNOW YOUR TRUCK

Is it an LMM? It changes the parts.

In 2007 GM sold both the old “Classic” body with the LBZ and the new body with the LMM. The 8th digit of your VIN tells us which one you have.

2007 Classic body

LBZ (VIN 8th digit “D”)

2007½–2010

LMM (VIN 8th digit “6”)

  • 365 hp / 660 lb-ft
  • First Duramax with a DPF
  • Larger EGR cooler
  • Allison 1000 6-speed
  • New body style (GMT900)

PERFORMANCE UPGRADES

More power that lasts.

The LMM makes good power with its emissions equipment working. We add fuel, air and cooling first, then legal tuning matched to the Allison. Gains depend on your truck.

Stage 1

Daily driver & light towing

  • FASS lift pump
  • Banks Ram-Air intake
  • Gauges for exhaust temp and transmission temp
  • PPE deep Allison pan
  • Banks Ram-Air differential cover

Typical result: steadier fuel, cooler temps and better pulling.

Call nowRequest a quote
Stage 2

Serious towing

  • Everything in Stage 1
  • Mishimoto radiator and intercooler
  • Emissions-legal Edge Evolution CTS3 tuning
  • Mishimoto transmission cooler
  • Allison rebuilt with heavy-duty parts

Typical result: strong, steady towing with temperatures under control.

Call nowRequest a quote

UPGRADES 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 LMM Duramax. Every truck is different, so call or request a quote for yours.

RELIABILITY FIRST

Known weak points come first.

Before adding power, we make sure the LMM Duramax’s known weak points are handled, so the upgrade lasts.

See the weak points →

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, FASS, Mishimoto, Edge, PPE and Bilstein.

See all the brands we install →

OWNER QUESTIONS

LMM Duramax performance questions, answered.

Can I add power and keep my DPF?

Yes. We install emissions-legal tuning and parts that work with the factory DPF and EGR.

Will more power hurt my Allison?

It can. We match power to the transmission and add cooling, or rebuild it with heavy-duty parts if you want more.

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.

Truck down?Call roadside service520-990-1033