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Supertrapp 2 1/2 in. Inlet Universal Aluminum External Disc Muffler - 422-25000

  • Part #: 43950
  • Manufacturer Part #: 422-25000

MSRP Price: $279.00

Our Price: $251.10

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Overview of Supertrapp 2 1/2 in. Inlet Universal Aluminum External Disc Muffler - 422-25000

  • Aluminum body universal muffler includes all items shown, including eight 4 in. diffuser discs, closed end cap, re-packable baffle core and a weld-on mounting tab
  • Approximately 13 in. long tip-to-tip without discs or end cap
  • 2 1/2 in. inlet size


NOTE: Not all products are legal for sale or use on pollution controlled vehicles. Check your local laws and the manufacturers information

NOTE: There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Discoloration (blueing) is the result of tuning characteristics, cam timing, carburetor jetting, overheating, etc., and is not caused by defective manufacturing. See the CHEMS/LUBES section in the back of this catalog for products that will help prevent or remove blueing.

NOTE: Installation of a new exhaust system may change your motorcycles fuel-air mixture requirements. Please consult the exhaust manufacturer directly with questions regarding any modifications that may need to be made during. or after, installing their product. If a jet kit or fuel processor is recommended, see the FUEL/INTAKE section

Specs for Supertrapp 2 1/2 in. Inlet Universal Aluminum External Disc Muffler - 422-25000

Finish Aluminum
Style - Exhaust Tip Canister Muffler
Type - Exhaust Slip-On/Muffler
Units Each
Weight 4.50 lbs

Specs for Supertrapp 2 1/2 in. Inlet Universal Aluminum External Disc Muffler - 422-25000

Finish Aluminum
Style - Exhaust Tip Canister Muffler
Type - Exhaust Slip-On/Muffler
Units Each
Weight 4.50 lbs

Fitment for Supertrapp 2 1/2 in. Inlet Universal Aluminum External Disc Muffler - 422-25000

See if this part fits your ride

Part 43950 fits the following machines

Universal Aluminum External Disc Muffler - 412-15000

4 out of 6 reviews
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Sound:
soft loud
Loud
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Performance:


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great muffler for vintage sound

Needed a muffler for a old enduro thumper. Did not want a new style muffler for it otherwise it would look like something its not. The supertrapp is a great look and vintage sound. All the dimensions labeled on Dennis Kirk are spot on for being a universal muffler. Everything was packed great no damage and shipping was very fast with no hassle.

Review By:

from wi

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Fitment:
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Auxiliary muffler

Purchased this to supplement existing muffler on a Lotus 7. It does the job. Good quality product.

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Fitment:
Sound:
soft loud
A Little Loud
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Performance:

good product; well made

It is exactly what it says it is. Tune-able sound - jetting required for best performance.

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Fitment:
Sound:
soft loud
A Little Loud
Finish:
Performance:

Supertrapp Universal Muffler

Good quality. I like the fact that this muffler can be repacked. The weld on tab was good because you can move the tab to wherever that you need it. This muffler has a very deep tone to it. In fact the only thing that I didn't like about the muffler is the aluminum outside body. It will be a pain to keep the oxidation off of it.

Review By:

from Texarkana, AR

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Fitment:
Sound:
soft loud
Very Loud
Finish:
Performance:

A++++. Performs as advertised

Pros: Exhaust flow adjustable to your jetting/EFI. Or you can open or close it up and rejet/EFI MAP between greater fuel efficiency and maximum torque and horsepower. On my ZX-9r I rejetted 2% richer, resulting in about 3% better power throughout powerband, crisp throttle response and a 4-9% decrease in fuel consumption. Will fit just about any motorcycle or car application (see inlet diameter). Excellent choice for multiple elevation traveling. Sound level: adjustable from quiet to BLOW-TORCH ROAR Cons: requires aluminum TIG weld for motorcycle rear set mount ~$30 For video search YouTube: ZX-9r SuperTrapp

Review By:

from Idaho

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Fitment:
Sound:
soft loud
Loud
Finish:
Performance:

Exhaust engineering excellence

Easy to follow instructions, easy to tune, and actually results in more power and more fuel efficient combustion. Expect about 3% more torque & horsepower and about 4% - 9% better fuel efficiency if tuned correctly. On my older 899cc 4-cylinder Kawasaki ZX-9r I run 8-9 discs. The new liter bikes don't get far away and when they're on vapors, I'm just getting started. And there isn't another exhaust that will match its performance for runs between low and high altitude. The Supertrapp keeps the jetting right in its sweet spot all the way up to 9,000,' without leaning the balance way out at sea level. The new kids say Supertrapp is old school. I say bring a lunch, cause I'll be putting on a school. A++++ Cons: requires TIG welding ~$30

Review By:

from Idaho

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Instructions and Manuals for Supertrapp 2 1/2 in. Inlet Universal Aluminum External Disc Muffler - 422-25000

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