Call 303 833-6528

Home Performance
performance_truckDo you want to tow up mountain passes at 75 MPH with the A/C on and a 12K LB trailer with power to spare?



We know you have nearly endless options when it comes to choosing where to spend your hard earned money. At Twin Peaks Diesel we will provide you with expert and courteous service.

Why buy from just any Internet warehouse you don't know or trust, when you can buy from a shop that actually installs and tests the products everyday?  We can provide you with excellent and proven advice based on hundred's of installs on all brands of vehicles. 

We are also extreme diesel enthusiasts!  Each of us push our diesels in very different ways to cover all the possible uses our customers will encounter. Testing new products on our own company vehicles allows us to know what works and what doesn't.

We tow thousands of miles a year to make sure each upgrade provides the proper balance between power, engine safety, and reliability.

We custom tailor each package to fit your exact needs. Not everyone needs the most power, and some people want the maximum power available.  We will never push or intimidate our customers to buy products they don't need or want.

We research and test which aftermarket manufactuers' offer the best products for each year and make of diesel.

We are dealers for the finest aftermarket brands:

  • FASS
  • Edge Products
  • S&B Filters
  • Sun Coast
  • ATS Diesel
  • SCT Livewire
  • Mag Hytec
  • OX Locker
  • MBRP Exhaust
  • Amsoil
  • AFE
  • WARN
  • Poly Performance
  • BD Diesel Products
  • Pac Brake Products
  • Industrial Injection
  • Snow Performance
  • TS Performance
  • Firestone Products
  • Smarty Products
  • BG Products
  • B&W Trailer Hitches
  • Air Lift Products
  • Banks Power Products


We carry all the big name brands in the industry and many of the niche ones as well.