Featured Performance Products

Diesel Performance Parts - Diesel Performance Truck Parts

Suspension Upgrades - Truck Replacement Parts

KLM is about Diesel Performance Parts. We sell only the most innovative products made by American companies you can trust. We are an East Coast distribution hub for diesel performance parts, suspension systems, diesel race tuners, suspension upgrades, and replacement parts for most truck makes and models. The products we sell use cutting-edge technology for applications in diesel performance parts that will bring your vehicle to levels of performance formerly unheard of.
$6 Price Beat GuaranteeKLM Performance is constantly adding product lines from innovative manufacturers who strive to create the best diesel performance parts anywhere. We stock the best products in diesel performance parts from Borgeson, Carli, FASS, Baja Designs, H&S, and Crown, just to name a few. To check out our latest deals please visit our diesel performance parts store.
When you buy from us you will receive high-performance customer service that is in keeping with the exacting standards of our product lines. We offer same-day shipping on orders that are received before 2:00 pm Eastern time. Installation instructions are available for all products sold by KLM Performance. Please contact us for additional info. We hope you find our Web site helpful!

Please check out our KLM Performance Twitter Tweets for specials, Follow us on Twitter to get announcements and info about upcoming discounts. KLM is constantly adding product lines from innovative manufacturers who strive to create the best automotive products anywhere. Don't hesitate to call us at (203) 210-7200 or e-mail us on our contact page.


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The ICON 214030 Dodge Ram adjustable track bar offers massive high strength heim joints on the axle end and on the... http://t.co/ALo4Tc4q

KLM Performance has the Ford ARP 250-4202 Ford 6.0L Powerstroke Diesel Head Stud Kit in stock and ready to ship!... http://t.co/uftLeuDd

Most Popular Performance Products

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H&S XRT Pro Race Tuner for Dodge, Ford, and Chevy/GMC

XRT Pro Race Tuner 109005 for the Dodge, Ford, and Chevy/GMC. The XRT Pro Race Tuner 109005 comes with all of the tuning capability of the Black Maxx and Mini Maxx but without the digital gauges and automatic defuel capability.

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H&S Mini Maxx Race Tuner with Pyrometer Connection

H&S 119003 Mini Maxx Race Tuner with Pryrometer Connection. The Mini Maxx Race Tuner with Pyrometer offers shift-on-the-fly tuning, full color display, 4 power levels, and built in safety features.

  • Dodge - Cummins


  • Chevy GMC


  • Ford

    Ford - Mercury

  • Jeep
  • Nissan
  • Toyota