CALTEK TUNING

Upgrade. Power. Perform.

Discover premium diesel performance kits engineered for strength, durability, and unstoppable power. Whether you drive a Cummins, Duramax, or Powerstroke — we’ve got the upgrades that keep your truck performing at its peak.More than parts — we’re diesel enthusiasts pushing limits.
Every product is carefully selected for its power, torque, and lasting reliability.

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Popular Performance Kits

DIESEL EGR BLOCK OFF

PIPE KITS FOR DIESEL ENGINES

2017-2019 L5P DURAMAX EGR Delete kit with 3.5" Downpipe and CAN Bus Plugs Fits

$1,209.99

Duramax Diesel 3" high flow Intercooler Pipe & Y-Bridge Kit Fit For GM 6.6L 2006-2010 LBZ 2006-2007 LMM 2007.5-2010

from $449.99

Intercool Boot Silicone Radiator Hose Kit for 1994-2002 Dodge Cummins 5.9L RED

$108.99

Sold Out

Intake Grid Heater Delete Spacer for 1998.5-2007 Dodge Ram 5.9L Cummins Diesel

$60.99

Save $400

Dodge Ram Cummins 6.7L 4"& 5" Downpipe Back Exhaust System (2019-2024) , w/ or w/o Muffler

$599.99 from $199.99

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Unleash Raw Power

Dodge Cummins Performance

Upgrade your Dodge Cummins with precision-engineered performance parts designed for maximum torque, reliability, and towing strength. Built for those who demand more from their diesel.

Unleash Superior Power

Ford powerstroke

Unlock your Ford Powerstroke's full potential with performance tuning kits that deliver more power and responsiveness.

Built to Dominate Every Mile

Chevy/GMC Duramax Performance

Enhance your Duramax’s capability with top-grade exhausts, manifolds, and tuning kits that boost performance and endurance — on or off the road.

Power Meets Precision – Komatsu Equipment Upgrades

KOMATSU Custom Tuning offers a range of compelling benefits for equipment operators seeking optimized performance and enhanced efficiency within the legal boundaries of regions like Mexico and Canada. By tailoring engine parameters to suit specific operational requirements, this custom tuning solution delivers improved power output and torque, ensuring that KOMATSU equipment operates at its peak potential.

Enhance Your Komatsu Today

Hear It from the Diesel Community

★★★★★
“I installed the Cummins Performance Kit last month, and the difference is unreal. My truck pulls smoother, accelerates faster, and fuel efficiency even improved. This is hands-down the best upgrade I’ve done.”
Mark T.
Heavy-Duty Mechanic

★★★★★
“I drive my Duramax daily for work, and these upgrades gave me the extra torque I needed for hauling. The quality is excellent, and installation was straightforward. Feels like a brand-new truck.”
James R.
Long-Haul Trucker

★★★★
“Our Powerstroke fleet runs stronger and more efficiently since switching to these performance kits. Zero issues so far — reliable power all day, every day. Definitely worth it.”
Daniel P.
Fleet Owner

★★★★★
“Great selection of parts for every diesel setup. I’ve bought both Powerstroke and Duramax components — everything fits perfectly, and customer support is top-notch. Highly recommend!”
Lucas H.
Diesel Enthusiast

Tuning Inquiry Form

Please provide the details of your pickup,heavy duty truck or piece of equpiment and the type of tuning you’re interested in. Please include Make, Model, Year, Engine Type, transmisson type (ram only) and any special requests in the message below.