Overview Product Description FeaturesQuiet Core and Quiet Tips inserts produce a more subdued exhaust noteEnd caps offered in a variety of sizes to allow fine-tuning of power delivery for different types of riding and terrainSpecs Material: Aluminum Product Name: Cap Riding Style: ATV End Cap Style: Quiet Tip Riding Style: Off-Road Style: Round Color/Finish: Stainless Steel Outlet Diameter: - Outside Diameter: 4" Units: Each Finish: Natural Fits Pipe Size: 1-1/2" Outside Diameter: 10 cm (4") Outside Diameter: 10 cm Riding Style: UTV Type: End CapApproximate Package Weight & Dimensions Weight: 0.5 Height: 4.7 Length: 5.6 Width: 5.4 Product Videos Custom Field Product Reviews Write a Review Write a Review × Pro Circuit Pro Circuit 4" Quiet End Cap - Billet - 1-1/2" Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
Pro Circuit | sku: 1861-0445 Pro Circuit 4" Quiet Insert - 1-1/2" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart Recommended Pro Circuit | sku: 1861-0445 Pro Circuit 4" Quiet Insert - 1-1/2" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart × OK
Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart Recommended Pro Circuit | sku: 1861-0445 Pro Circuit 4" Quiet Insert - 1-1/2" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart × OK
Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart Recommended Pro Circuit | sku: 1861-0445 Pro Circuit 4" Quiet Insert - 1-1/2" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart × OK
Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart Recommended Pro Circuit | sku: 1861-0445 Pro Circuit 4" Quiet Insert - 1-1/2" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart × OK
Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart Recommended Pro Circuit | sku: 1861-0445 Pro Circuit 4" Quiet Insert - 1-1/2" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart × OK
Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart Recommended Pro Circuit | sku: 1861-0445 Pro Circuit 4" Quiet Insert - 1-1/2" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart × OK
Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart
Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart
Pro Circuit | sku: 1861-0445 Pro Circuit 4" Quiet Insert - 1-1/2" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart
Pro Circuit | sku: 1861-0446 Pro Circuit 4" Quiet Insert - 1-3/4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart
Pro Circuit | sku: 1861-0444 Pro Circuit 4" Quiet Insert - 1-5/8" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart
Pro Circuit | sku: 1861-0475 Pro Circuit End Cap - Stainless Steel - 4" MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart
Pro Circuit | sku: 1861-0016 Pro Circuit End Cap - Modular - Stainless Steel - 4" MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart
Pro Circuit | sku: 1861-0476 Pro Circuit End Cap - 3.5" - Stainless Steel MSRP: Was: Now: $41.95 Add to Cart Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart
Pro Circuit | sku: 1861-0017 Pro Circuit End Cap - Modular - 3.50" - Stainless Steel MSRP: Was: Now: $35.95 Add to Cart Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart
Pro Circuit | sku: 1861-0019 Pro Circuit Quiet Tip - Modular - 3.50" MSRP: Was: Now: $29.95 Add to Cart Pro Circuit | sku: 1861-0020 Pro Circuit Modular 4.00" Quiet Tip MSRP: Was: Now: $29.95 Add to Cart