Big Ass Custom

DIESEL PERFORMANCE

We Live and Breath It

Big Ass Custom does not just sell diesel performance parts and accessories... we live and breath the lifestyle. Let us put our years of hands-on experience and knowledge to task and help you select the best set up for your Cummins, Ecodiesel, Duramax or Powerstroke. From diesel parts and diesel performance, to suspension lift kits, wheels and tires, and anything else that your truck needs, we've got you covered.

Diesel Parts and Performance

Diesel Part Categories

There are a ton of great options available in these categories and more!

  • Apparel
  • Air Intakes
  • Cooling Systems
  • Diesel Guages
  • Diesel Programmers
  • Differential Covers
  • Engine Parts
  • Exhaust Systems
  • Exhaust Tips
  • Fuel Systems
  • Fuel Tanks
  • Intakes
  • Intercoolers
  • Turbochargers
  • ... and much more!

Diesel Parts & Performance Brands

These are just some of the great diesel part brands that we carry.

AEM
AEM
aFe Power
aFe Power
Airraid
Airraid
Banks Power
Banks Power
BD Diesel
BD Diesel
BullyDog
BullyDog
Diablosport
Diablosport
Edge
Edge Performance
EZ Lynk
EZ Lynk
FASS Diesel Fuel Systems
FASS Fuel Systems
Fleece Performance
Fleece Performance
Flo-Pro Performance Exahaust
FLO-PRO Exhaust
Hypertech
Hypertech
Injen Technology
Injen
Jet Performance Products
JET Performance
K&N Intakes
K&N Intakes
Magnaflow
Magnaflow
MBRP Exhaust
MBRP Exhaust
Quadzilla
Quadzilla
Rolling Big Power
RBP Exhaust
S&B Intakes
S&B Intakes
Superchips
Superchips
Titan Fuel Tanks
Titan Fuel Tanks
Transfer Flow Fuel Tanks
Transfer Flow
TS Performance
TS Performance
Volant Performance
Volant Performance