This popular SuperTrapp external disc exhaust is just what you have been looking for. It’s available in a Brushed Aluminum or Polished Aluminum canister. Its durable steel core and high tech packing material make this a winning design.

Being a tunable exhaust, you can add discs to increase sound, flow and peak horsepower or remove some to increase low-end torque and reduce the sound when required.

Aluminum Racing Series include tri-brackets that you will need to have welded on.

The Aluminum Racing Series are 12” in length and are available in the following inlet diameters: 1.50”(38.1mm), 1.75”(44.5mm), 2.00”(50.8mm) or 2.50”(63.5mm) with a 2.5” Core.

P/N 412-15000, 413-15000, 412-17500 and 423-20000 include 8 discs.

P/N 422-20000, 422-25000 and 523-25000 include 12 discs.

Select Aluminum Racing Series and accessories are available for order on the SuperTrapp Web Store and shipping is FREE (within the U.S.)!

How do you know which Universal Exhaust will fit your application? It’s easy! Click here and we’ll tell you how!

Videos of Dirt Bikes with Aluminum Racing Series

Videos of ATVs with Aluminum Racing Series



Click any Model # for more details.

DESCRIPTION: MODEL# MSRP
4'' UNIV. 1.50''ID,1.75''CORE,ALUM,8DISC 412-15000 $199.00
4'' UNIV. 2''ID, 2.0''CORE, ALUM.,8DISC 422-20000 $229.00
4'' UNIV.1.75''ID,1.75'CORE, ALUM,8DISC 412-17500 $199.00
4" UNIV. 2.5"ID,2.5"CORE,POL.ALUM,12DISC 423-25000 $249.00
4" UNIV:2" ID, 2" CORE, POL.ALUM.,8DISC 423-20000 $249.00
4" UNIV:2.5"ID,2.5"CORE,ALUM,12DISC 422-25000 $229.00
4''UNIV1.5''ID,1.75"CORE,POL ALUM,8DISC 413-15000 $219.00

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