Underdog Racing Development is a performance parts supplier, manufacturer and development company specializing in Toyotas


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  • URD Spec-U Exhaust Release

    URD is proud to announce our new Spec-U exhaust system for the 2005-2013 Tacoma V6 and 2003-2009 4Runner. This is the ultimate performance exhaust system for your truck and it is ready for the race track. The Spec-U system enhances power and torque throughout the RPM range and has a completely unique exhaust note.

    Hear it on this product video
  • 2TR-FE Supercharger Kit

    URD has released this advanced supercharger system for the 2005 and later Tacoma with the 2.7L 2TR-FE 4 cylinder engine. The before dyno using a DynoJet chassis dyno was 117 RWHP. The after dyno was 248 RWHP. The after dyno was done without the catalytic converters installed and the Stage 2 pulley.

    Check out the dyno chart & video
  • Spec-U Equal Length Headers

    URD is proud to announce our new Spec-U True Equal Length Long Tube Header for the 1GR-FE 4.0L V6 engine. We have tested different tube lengths in an effort to maximize the low end torque production without sacrificing the upper end power gains. The equal length design also improves the sound or tone of the exhaust.

    Read the reviews

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URD will be attending the Annual All Toyota Event in Fredericksburg VA on Saturday March 28th, 2015.

Anyone in the DC Metro area should try and make it out.

See you there!!

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All Toyota, Scion, and Lexus vehicles are welcome.

2 days ago

Sixth Annual Fredericksburg All-Toyota Spring Meet

March 28, 2015, 10:00am

Old Mill Park

All Toyota, Scion, and Lexus vehicles are welcome.

URD has just added two new exhaust systems to our line up.

We have a new a 304 Stainless Cat-Back for the FJ Cruiser and a Spec-U exhaust system for the FJ Cruiser. The Spec-U is a "manifold back" TUNED exhaust system that includes an equal length Y pipe and a dual muffler exhaust.

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4 days ago

Calling all family and friends!!!

Good friend Ray Murphy's Windshield Repair is coming to URD in Owings on Sunday March 29th to do some windshield repair for me. If anyone else needs a chip fixed it will be a great time for it. Come on over!!

Apparently, he can fix some cracks too.....
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5 days ago

Just a little out of the norm for a Monday at URD. This morning there was a house fire on the street behind our warehouse. The crew from URD responded to assist the local fire department. We have an all-volunteer fire service here.

As we got on the scene the crew from the first responding engine company rescued an unconscious female victim from the house and placed on the ground. Two people from the ambulance crew came over and there was no pulse or respiration. CPR was started and I ran back and forth to the ambulance to get the needed gear, O2, backboard, stretcher.

The ground was very soft from all the melting snow so she had to be carried to the ambulance. The good news is a pulse was restored on the scene, but the ambulance was stuck in the mud and a second unit was called in to transport her to a waiting helicopter.
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3 weeks ago

URD has added some new exhaust systems to our line up.

We now have our standard URD Mk3 Cat-Back system for the 2005 and later Tacoma Double Cab with the LONG BED and our Spec-U system for the same truck.

We have also added the Standard URD Mk3 Cat-Back with twin mufflers and our Spec-U exhaust system for the 2010 and later 4Runner V6.

All of our systems are made in USA of 304 grade stainless steel.

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1 month ago

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Tuning has never been easier.

UCON-EMS Advanced Engine Management for Toyota 1GR-FE 4.0L V6

Tap into your engine's potential
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URD is all about being active in the gearhead community. We are an active vendor on nine internet automotive forums. We utilize those websites to answer customer inquiries and source new product development ideas from real-world enthusiasts. You'll also see us at quite a few annual events, getting dirty and causing trouble. (maybe just a little)

See all the forums we support

We get around, and we're proud of it.

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Underdog Racing Development