Knucklehead Over The Transmission Exhaust Systems For 1936 - 1947

1-3/4" Over-The-Transmission Exhaust Systems For 1936-1947 Knuckleheads
An outside-the-frame front pipe, and a rear pipe that routes over the transmission, bring a modern style and a throaty sound to your 1936 – 1947 Knucklehead. They all have slider channels except the 34" drag pipes, which can be installed with P-clamps.

729C       34"-long Slash Cut drag pipes (use Paughco #725D clamps to install)
729C40  40"-long Slash Cut drag pipes
729CGM 38"-long Goose Cut muffler set
729CM    38"-long Slash Cut muffler set
729CTM  38"-long Tapered muffler set
429CR     Rear heat shield for Paughco #729C series pipe sets (not shown)


Special Notes:
1) Drag pipes are not recommended for use on the street.
2) These pipes have less ground clearance than original equipment and may scrape on hard right hand turns. Do not use these pipes unless the front end is extended at least 4" longer than stock or serious injury may result.
3) See page 247 for P-clamps and frame rail clamps to install these pipe sets.
4) See pages 349-353 for photos of the heat shields for these pipe sets.
  • 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 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.

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