Yoshimura R&D of America, Inc.

SPARK ARRESTER KIT RS-4 Muffler, 1.375" (SA-08-K)

SPARK ARRESTER KIT RS-4 Muffler, 1.375" (SA-08-K) - Main image
$29.73 $47.95 In stock

Category: Replacement Service Parts

  • Replacement USFS Approved Spark Arrester for RS-4 Off-Road Mufflers
  • Available as optional Spark Arrester on applications not originally equipped with a Spark Arrester
  • Please see our Insert Chart to confirm fitment for your application
  • Kit Includes:
    • Spark Arrester Insert
    • End-cap collar
    • Set screw

*If you have any questions about fitment or applications, please call our Sales Department at 1-800-634-9166.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Penelope ★★★★★

The fit on my 1.375" muffler was perfect, no wobble or gaps. Installed it in about ten minutes and the trail ride confirmed it's holding up great. Glad to finally have the USFS approval for the places I ride.

Avery ★★★★★

Took this out to the trails after swapping in my old baffle and it passed the Forest Service spark test no problem. The 1.375" diameter fit my RS-4 muffler perfectly with no modification needed.

Grace S. ★★★★★

The new spark arrester slid right into place on my RS-4 muffler without any filing or force needed. It feels well-machined and should hold up to the rough off-road miles I have planned this season.

Related Products