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1-3/4" Over-The-Transmission ‘S’ Pipe Staggered Duals For 1936-1947 Knuckleheads
Feature an inside-the-frame front ‘squish’ pipe, and an over the transmission rear pipe to blend nostalgic and contemporary looks on your rigid framed 1936–1947 Knucklehead. The mufflers have slider channels on the front and rear pipes, and the drag pipes have one on the rear pipe only. A Paughco #523-3 mounting clamp is included with the muffler sets.

711GM 38"-Rear pipe only (not a set)

711TM 38"-Rear pipe only (not a set)

Note: Paughco seconds/swap items are "SOLD AS IS" no warranty or returns accepted. Free shipping on orders over $200.00.

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Part # (rear pipe only)
Prop 65 Warning +

California Proposition 65 Warning WARNING: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov.

Shipping Information +

Items in stock will be dispatched within 2 business days. Once shipped, you will receive an order confirmation email with a tracking number. For items *built to order, shipping times may vary. To inquire about specific shipping times for custom orders or for products you are interested in, please contact us at info@paughco.com or call 1-800-426-2621. *Built-to-order items include Frames, Springers, Gas Tanks, Oil Tanks, Trike Products, and any product currently out of stock. If an item you've ordered is on backorder, you will be notified within 2 business days of placing your order.