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Sometimes you want the old fashioned "Rumble Sound" in your Harley and sometimes you don't. These adjustable end caps make this possible. By loosening the lock screw on the end cap you can open up your exhaust with the small handle, allowing a straight thru flow. Cap is CNC machined from billet aluminum and has a high luster polished finish. Comes complete with Allen key for the lock screw. Fit all SuperTrapp 4" external disc exhausts. Sold each.


Article number Description Retail price Add to cart
731434 Adjustable end cap £66.55

Recommended Retail Prices include 20.00% sales tax.

Prices exclude shipping, import duties and installation.

Prices are based on EUR to GBP interbank rates obtained daily. The interbank rate is the rate that banks trade currency to each other. These prices must be used as a guide.

Note: Except where mentioned differently, all exhaust systems, mufflers, drag-pipes, etc. shown in our catalog, are for closed course competition or in show competition only. They will not meet legal noise and emission standards.
Note: The adjustable disc system is accessible through the removable end caps, which are available in four different styles as replacement. Systems are made from highly polished steel tubing which then receives a brilliant chrome plated finish. Mounts to the stock factory mounts. For replacement parts see section: Accessories and replacement parts for internal disc series.