Home Shop Exhaust Exhaust Systems for Sportster SuperTrapp XR Style 2-2 Exhaust Systems
SuperTrapp XR Style 2-2 Exhaust Systems
Click here to recommend this page to others

SuperTrapp XR Style 2-2 Exhaust Systems

Super sporting exhaust system for all Evolution Sportster models from 1986 to present. It is made from stainless steel and comes in a satin finish. This 2-2 system resembles the style of XR 750 track racers and XR 1000 models respectively.

... more
less

These parts are not sufficiently homologated for the use within the purview of German road traffic laws. Therefore, use within Germany is only possible on the race-track, for show and exhibition purposes or for restoration of veteran vehicles. Which parts are legal for veteran-restoration, depends on the respective assembly group and the vehicle's age and must be seen about with the autorities in charge.

Outside of Germany, the homologation and a possible use in road traffic must be seen about with the local authorities in charge.
These exhaust-systems have less back pressure than the stock system. This causes a lean fuel mixture, the fuel metering system should be readjusted.
SuperTrapp Disc System

SuperTrapp Disc System

A signature feature of SuperTrapp exhaust systems is the diffuser disc technology, created and patented for the XDUSOR, the first motorcycle exhaust product sold by Paul Moller in 1971.This technology allows the rider to adapt their bike, or ATV, to a specific riding environment. This is accomplished through a series of discs with a precisely aligned diameter that form the exhaust outlet. By adding or subtracting discs, the rider can tune the powerband and sound of their machine in just a few minutes with basic hand tools.

  • Removing discs decreases the exhaust opening and increases backpressure. This effectively decreases the powerband to create more low-end torque. It also decreases exhaust tone and enriches carburetion.
  • Adding discs increases the exhaust outlet and decreases back pressure. This widens the powerband at the top end. It also increases exhaust tone and leans out carburetion.

SuperTrapp systems come with installation instructions that indicate the recommended number of discs for each application.
2-2 Exhaust system »XR Style« by SuperTrapp; stainless steel, brushed; Ø 4" external discs; not homologated
W&W# Picture net price* Available from warehouse Germany?
70-313 SuperTrapp XR Style 2-2 Exhaust Systems fits Evo Sportster 1986-2003 $1,132.95 kit
in stock
70-669 SuperTrapp XR Style 2-2 Exhaust Systems fits Evo Sportster 2004→ $1,132.95 kit
in stock
* United States of America: Tax free shipping. Please check your local import fees.

Spare parts:

Accessories:

  • 56-119

    56-119 Gasket by James Gaskets; for Header pipe / Cylinder head; fits Softail, Touring, FXR 1984, all Big Twins 1985→, Sportster 1986→; steel, conical; replaces OEM ...

  • SuperTrapp 4” Standard End Caps

    SuperTrapp 4” Standard End Caps Exchangeable end caps for all SuperTrapp exhaust systems with 4” internal or external disc system.

  • CPV End Cap for 4” SuperTrapp

    CPV End Cap for 4” SuperTrapp This open end cap fits all 4” SuperTrapp mufflers with internal disc system. It is machined from billet aluminum and has a satin finish.

  • Adjustable End Caps for 4” SuperTrapp

    Adjustable End Caps for 4” SuperTrapp Work with 4” SuperTrapp mufflers, are made of polished aluminum and are adjustable using a hex wrench. For the race track only.

See also:

  • Storz Dirt Track Gas Tanks

    Storz Dirt Track Gas Tanks The legend lives on! Convert your Evolution Sportster to the unique styling of the classic XR 750 Dirt Track Racers. These alloy gas tanks are completely ...

  • Storz XR-Style Dirt Track Tail Section

    Storz XR-Style Dirt Track Tail Section The legend lives on! Convert any Evolution Sportster to the unique styling of the classic XR 750 dirt track racer. This stunning seat-fender combination ...

Have any questions?

  • Our sales team will be glad to help out:
    Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET
    Phone: +49 / 931 250 61 16
    eMail: sales@wwag.com