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URD Spec-U Exhaust 2010+ 5th Gen 4Runner V6

(4 customer reviews)



URD is proud to announce our new Spec-U TUNED exhaust system for the 2010 and later 5th Gen 4Runner V6.  This is the ultimate performance exhaust system for your truck and it is ready for off road racing.

The Spec-U system differs greatly from our other exhaust systems and Y pipes.  We took a totally different approach and combined an equal length Y pipe and cat-back exhaust system as one complete assembly.  The system consists of an equal length Y pipe using 2.25″ tubing that transition to a single 3″ exhaust that includes twin mufflers.

The Spec-U system will bolt to the rear of the stock exhaust manifolds/front cats, or the URD Spec-U equal length long tube headers, Doug Thorley long tube headers or the JBA long tube headers.  The system is not compatible with any other Y pipe or cat-back system.

URD put a lot of R&D time into this system to optimize the tube sizing, bend locations, lengths and materials and the result is very impressive.  The Spec-U system enhances power and torque throughout the RPM range and has a completely unique exhaust note.  The exhaust note is more like the purr of a high end European sports car than typical raspy 1GR sound you have been used to.  It is very quiet during highway cruising and has a very unique exhaust note when accelerating!!

The Spec-U system replaces the stock Y pipe and cat-back.  There is no cutting or welding and uses the stock OEM mounting locations.

The tail pipe exits to the side and rear of the rear tire.  It has a dual tip and is ceramic coated in a nice satin black color.

Key features

  • Made in USA
  • Made from .065 wall 304 grade stainless steel tubing
  • All mandrel bent tubing
  • All hand Tig welded
  • Dual high quality mufflers
  • Includes all needed hardware and gaskets
  • Simple installation with hand tools
  • No cutting or welding needed
  • The most amazing exhaust note!!!!
  • Fits 2×4 and 4×4 trucks
  • O2 sensor bungs installed for the rear O2 sensors
  • Extra O2 sensor bung provided for aftermarket AFR Gauge Sensor, plug included if not used
  • No check engine lights or sim needed
  • Uses two bolt CNC flanges at the front Y pipe connections,  and slip joint connections
  • Side Exit Dual Tip that is ceramic coated in Satin Black
  • Extra O2 sensor bung in the Y pipe for your aftermarket wideband O2 sensor




Year Make Model Engine
Year Make Model Engine
2010 - 2021 Toyota 4Runner V6 4.0L 1GR-FE
Weight 37 lbs
Dimensions 46 × 20 × 12 in

4 reviews for URD Spec-U Exhaust, 5th Gen 4Runner V6, 2010+

  1. DANIEL ZETTINA (verified owner)

    Great Exhaust system! Have this Spec U paired with the URD Spec U Headers. Has a nice Purr during cruise and a nice Note Under heavy acceleration. Built quality is excellent: Something i like about this exhaust system is that I’m able to remove the dual tip when heading out to the trails to prevent damaging it, and a simple bolt on when getting back on the street! follow me on Instagram @Bz_overland for Exhaust Revs and Reviews!

    URD Note- This exhaust system is available with a high tuck rear section.

  2. DANIEL ZETTINA (verified owner)

    Currently have the URD Headers. Installed the Spec U exhaust and the sound is definitely unique but this system is super quiet. Compared to the borla Stye I had paired the URD headers. Personally I wish It was louder.
    Fit and Finish is great.
    Exhaust system arrived with a few dents on the muffler and bashed up piping.

  3. jordan.rick90 (verified owner)

    Overall the quality of this exhaust is top notch. Installation was a bit difficult but that was on my end for having one of the header bolts strip out and seize up. Luckily this kit comes with 4 new bolts but I was able to use 3 of the originals and only drill out and replace one. After that hang up everything else went smooth and just had to dry fit everything and play with it to get proper alignment. Adding wd40 to the connections allowed them to move around easier to get good placement on all the pieces. Exhaust clamps are very good and the only one I had to adjust was the first one on the passenger side as it had a small leak after install. Only put 20 miles on it after install but sound is great and not obnoxious. Very quiet on the inside and with the window down provides a nice tone. I couldn’t find installation instructions anywhere but looking at the pictures here it’s pretty straight forward. Going to recheck all connections after another 50 miles but very happy so far.

  4. rjcjr10 (verified owner)

    This is the BEST Bolt on exhaust you can buy. I replaced a 1 month old 900 dollar Magnaflow exhaust on my 2019 4runner TRD PRO with this setup and this Blows it away by a lot, the materials are top shelf it bolts right up to exhaust Manifolds(soon to be URD headers) all the way back to the sexiest dual tip tailpipe you’ll ever see, and it clears all the Skids plates all the way back to T/C you cannot ask for more that that, well you could, but you aint getting it.
    JailBreak Overlander
    Install video and sound bites will be up on youtube under Jailbreak Overlander.

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