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XR-1®

BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core technology, BORLA's XR-1® mufflers actually outflow a straight piece of pipe. XR-1® race products are made in the USA and constructed of high-quality T-304 stainless steel for track tough durability. They meet the strictest noise requirements. Multi-Core, Collector, and Bullet Racing mufflers feature steel wool packing for sound control. Sportsman mufflers feature high temperature continuous filament fiber (CFF) for sound control. Hands down, BORLA’s XR-1® raceline parts offer the best balance of sound and power.

  • T-304 stainless steel will never rust — our thickest material.
  • Free-flow design for improved performance.
  • 100% welded construction is track-tough.
  • Multicore, Collector, and Bullet Racing muffler feature steel wool packing for sound control.
  • XR-1's race-proven design attenuates sound without restricting flow.
  • Sportsman mufflers feature high temperature continuous strand fiberglass (CSF) for sound control.
  • Natural mill finish can be brushed or polished.
  • Reversible design for installation flexibility.
  • Recommended for high-horsepower racing applications.
XR-1®

Click on any image above to enlarge.
Vehicle(s) shown may vary from your specific model.

Note: Products are shipped un-polished unless otherwise indicated. Image shown may be a polished version. Tip style may vary.

Part# Description VehicleFits BoxDimensions1 MufflerShape Application MufflerTubingSize Model ProductType BoxWeight1 Category2 OffRoadOnly Notch MufflerConfig Catgegory3 CaseDimensions DealerHistory CategoryFilter XR1Type SystemType HasSoundData EngineSize1 EngineSize2 EngineSize3 EngineSize4 PlanningComment MufflerOverallLength HasSimulator HasValves Price  
400024 XR-1® Multi-Core 2.5" Center-Center 14"x6.25" Round - Racing Muffler part # 400024 XR-1® Multi-Core 2.5" Center-Center 14"x6.25" Round - Racing Muffler 26x12x12 Round Universal 2.5" XR-1 F 10 CATALOG N Center/Center XR1 14" x 6.25" Summit Racing Equipment1153ATEMOTOATEMOT2400024https://www.summitracing.com/parts/bor-400024summitracing_logo.pngParts Via8198PARTSVIA400024https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR400024/1partsvia_logo.pngStreetsideAuto.com3018KEYAUTOKEYAUT2400024http://www.streetsideauto.com/p/borla-xr-1-stainless-multicore-racing-400024streetside_logo.png Mufflers Multi-Core Mufflers 0 0 0 0 0 18.5" N N $276.99
40004S XR-1® Sportsman 3.5" Center-Center 8"x5" Round - Racing Muffler part # 40004S XR-1® Sportsman 3.5" Center-Center 8"x5" Round - Racing Muffler 18x5x9 Round Universal 3.5" XR-1 F 5 CATALOG N Center/Center XR1 8" x 5" Summit Racing Equipment1140ATEMOTOATEMOT240004Shttps://www.summitracing.com/parts/bor-40004Ssummitracing_logo.pngSS-Exhaust.com7539TURN1440004shttp://www.ss-exhaust.com/borla-40004s/ssexhaust_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 13" N N $196.99
400069 XR-1® Multi-Core 4" Center-Center 23"x5.5"x8.5" - Racing Muffler part # 400069 XR-1® Multi-Core 4" Center-Center 23"x5.5"x8.5" - Racing Muffler 32x9x8 Oval Universal 4" XR-1 F 12 CATALOG N N Center/Center XR1 23" x 5.5" x 8.5" Summit Racing Equipment1227ATEMOTOATEMOT2400069https://www.summitracing.com/parts/bor-400069summitracing_logo.pngSS-Exhaust.com7501TURN14400069http://www.ss-exhaust.com/borla-400069/ssexhaust_logo.png Mufflers Multi-Core Mufflers 0 0 0 0 0 28" N N $398.99
400115 XR-1® Multi-Core Pre-Runner 3" Center-Center 34"x8.5"x5.5" - Racing Muffler part # 400115 XR-1® Multi-Core Pre-Runner 3" Center-Center 34"x8.5"x5.5" - Racing Muffler 45x11x11 Oval Universal 3" XR-1 F 34 CATALOG N Center/Center XR1 34" x 8.5" x 5.5" JEGS High Performance755JEGAUTO400115http://www.jegs.com/i/Borla/157/400115/10002/-1jegs_logo.png Mufflers Multi-Core Mufflers 0 0 0 0 0 39.25" N N $531.99
400261 XR-1® Multi-Core 3.5" Center-Center 24"x6.25" Round - Racing Muffler part # 400261 XR-1® Multi-Core 3.5" Center-Center 24"x6.25" Round - Racing Muffler 32x8x8 Round Universal 3.5" XR-1 F 15 CATALOG N Center/Center XR1 24" x 6.25 Mufflers Multi-Core Mufflers 0 0 0 0 0 29" N N $395.99
400371 XR-1® Multi-Core 3" Center-Center 16"x4.25"x7.88" - Rotary Engine Equipped Racing Muffler part # 400371 XR-1® Multi-Core 3" Center-Center 16"x4.25"x7.88" - Rotary Engine Equipped Racing Muffler 21x8x11 Oval Universal 3" XR-1 F 12 CATALOG N Center/Center XR1 16" x 4.25" x 7.88" StreetsideAuto.com3111KEYAUTOKEYAUT2400371http://www.streetsideauto.com/p/borla-xr-1-stainless-multicore-racing-400371streetside_logo.pngParts Via8202PARTSVIA400371https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR400371/1partsvia_logo.pngSummit Racing Equipment1360ATEMOTOATEMOT2400371https://www.summitracing.com/parts/bor-400371summitracing_logo.png Mufflers Multi-Core Mufflers 0 0 0 0 0 21" N N $315.99
400372 XR-1® Multi-Core 3" Center-Center 12"x4.25"x7.88" - Rotary Engine Equipped Racing Muffler part # 400372 XR-1® Multi-Core 3" Center-Center 12"x4.25"x7.88" - Rotary Engine Equipped Racing Muffler 6x10x19 Oval Universal 3" XR-1 F 12 CATALOG N Center/Center XR1 12" x 4.25" x 7.88" Summit Racing Equipment1398ATEMOTOATEMOT2400372https://www.summitracing.com/parts/bor-400372summitracing_logo.png Mufflers Multi-Core Mufflers 0 0 0 0 0 17" N N $287.99
400373 XR-1® Multi-Core 3" Center-Center 16"x6.25" Round - Rotary Engine Equipped Racing Muffler part # 400373 XR-1® Multi-Core 3" Center-Center 16"x6.25" Round - Rotary Engine Equipped Racing Muffler 24x6x10 Round Universal 3" XR-1 F 12 CATALOG N Center/Center XR1 16" x 6.25" SS-Exhaust.com7506TURN14400373http://www.ss-exhaust.com/borla-400373/ssexhaust_logo.pngParts Via8203PARTSVIA400373https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR400373/1partsvia_logo.pngSummit Racing Equipment1361ATEMOTOATEMOT2400373https://www.summitracing.com/parts/bor-400373summitracing_logo.png Mufflers Multi-Core Mufflers 0 0 0 0 0 21" N N $315.99
400373H XR-1® Multi-Core 3" Center-Center 16"x6.25" Round - Rotary Engine Equipped Racing Muffler part # 400373H XR-1® Multi-Core 3" Center-Center 16"x6.25" Round - Rotary Engine Equipped Racing Muffler 24x6x10 Round Universal 3" XR-1 F 12 CATALOG N Center/Center XR1 16" x 6.25" Mufflers Multi-Core Mufflers 0 0 0 0 0 21" N N $315.99
400374 XR-1® Multi-Core 4" Center-Center 16"x6.25" Round - Rotary Engine Equipped Racing Muffler part # 400374 XR-1® Multi-Core 4" Center-Center 16"x6.25" Round - Rotary Engine Equipped Racing Muffler 32x8x8 Round Universal 4" XR-1 F 14 CATALOG N Center/Center XR1 16" x 6.25" Mufflers Multi-Core Mufflers 0 0 0 0 0 21" N N $326.99
40085 XR-1® Sportsman 3" Center-Center 15"x5" Round - Racing Muffler part # 40085 XR-1® Sportsman 3" Center-Center 15"x5" Round - Racing Muffler 24x6x10 Round Universal 3" XR-1 F 9 CATALOG N Center/Center XR1 15" x 5" StreetsideAuto.com2978KEYAUTOKEYAUT240085http://www.streetsideauto.com/p/borla-xr-1-stainless-sportsman-racing-40085streetside_logo.pngSummit Racing Equipment1022ATEMOTOATEMOT240085https://www.summitracing.com/parts/bor-40085summitracing_logo.pngJEGS High Performance120JEGAUTO40085http://www.jegs.com/i/Borla/157/40085/10002/-1jegs_logo.pngSS-Exhaust.com7207TURN1440085http://www.ss-exhaust.com/borla-40085/ssexhaust_logo.pngParts Via7880PARTSVIA40085https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40085/1partsvia_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 Generate W/O's in increments of 56's 20" N N $156.99
40085H XR-1® Sportsman 3" Center-Center 15"x5" Round - Racing Muffler part # 40085H XR-1® Sportsman 3" Center-Center 15"x5" Round - Racing Muffler 24x6x10 Round Universal 3" XR-1 F 9 CATALOG N Center/Center XR1 15" x 5" Mufflers Sportsman Mufflers 0 0 0 0 0 20" N N $156.99
40086 XR-1® Sportsman 3.5" Center-Center 15"x5" Round - Racing Muffler part # 40086 XR-1® Sportsman 3.5" Center-Center 15"x5" Round - Racing Muffler 24x6x10 Round Universal 3.5" XR-1 F 11 CATALOG N Center/Center XR1 15" x 5" StreetsideAuto.com2946KEYAUTOKEYAUT240086http://www.streetsideauto.com/p/borla-xr-1-stainless-sportsman-racing-40086streetside_logo.pngSS-Exhaust.com7208TURN1440086http://www.ss-exhaust.com/borla-40086/ssexhaust_logo.pngParts Via7881PARTSVIA40086https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40086/1partsvia_logo.pngSummit Racing Equipment1023ATEMOTOATEMOT240086https://www.summitracing.com/parts/bor-40086summitracing_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 20" N N $157.99
40086H XR-1® Sportsman 3.5" Center-Center 15"x5" Round - Racing Muffler part # 40086H XR-1® Sportsman 3.5" Center-Center 15"x5" Round - Racing Muffler 24x6x10 Round Universal 3.5" XR-1 F 11 CATALOG N Center/Center XR1 15" x 5" Mufflers Sportsman Mufflers 0 0 0 0 0 20" N N $157.99
401012 XR-1® Multi-Core 3.5" Center-Center 14"x6.25" Round - Racing Muffler part # 401012 XR-1® Multi-Core 3.5" Center-Center 14"x6.25" Round - Racing Muffler 9x9x33 Round Universal 3.5" XR-1 F 12 CATALOG N N Center/Center XR1 14" x 6.25" Mufflers Multi-Core Mufflers 0 0 0 0 0 19" N N $299.99
40575 XR-1® Multi-Core 3" Center-Center 16"x4.25"x7.88" - Racing Muffler part # 40575 XR-1® Multi-Core 3" Center-Center 16"x4.25"x7.88" - Racing Muffler 25x5x11 Oval Universal 3" XR-1 F 12 CATALOG N Center/Center XR1 16" x 4.25" x 7.88" StreetsideAuto.com2958KEYAUTOKEYAUT240575http://www.streetsideauto.com/p/borla-xr-1-stainless-multicore-racing-40575streetside_logo.pngParts Via7894PARTSVIA40575https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40575/1partsvia_logo.pngSummit Racing Equipment921ATEMOTOATEMOT240575https://www.summitracing.com/parts/bor-40575summitracing_logo.png Mufflers Multi-Core Mufflers 0 0 0 0 0 21" N N $315.99
40641 XR-1® Bullet 14"x3.5" Round - Racing Muffler part # 40641 XR-1® Bullet 14"x3.5" Round - Racing Muffler 18x5x9 Round Universal 2.5" XR-1 F 6 CATALOG N Center/Center XR1 14" x 3.500" Summit Racing Equipment954ATEMOTOATEMOT240641https://www.summitracing.com/parts/bor-40641summitracing_logo.pngSS-Exhaust.com7216TURN1440641http://www.ss-exhaust.com/borla-40641/ssexhaust_logo.png Mufflers Bullet Mufflers 0 0 0 0 0 17" N N $222.99
40703 XR-1® Collector Muffler 2.375" Inlet 4.5" Outlet 20.5"x6.75" Round - Racing Muffler part # 40703 XR-1® Collector Muffler 2.375" Inlet 4.5" Outlet 20.5"x6.75" Round - Racing Muffler 24x10x10 Round Universal 2.375" Inlets/ 4.5" Outlet XR-1 F 12 CATALOG N Center/Center XR1 20.5" x 6.75" Mufflers Standard Collector Mufflers 0 0 0 0 0 23" N N $740.99
40722 XR-1® Multi-Core 3.5" Center-Center 16"x6.25" Round - Racing Muffler part # 40722 XR-1® Multi-Core 3.5" Center-Center 16"x6.25" Round - Racing Muffler 32x8x8 Round Universal 3.5" XR-1 F 12 CATALOG N Center/Center XR1 16" x 6.25" Summit Racing Equipment959ATEMOTOATEMOT240722https://www.summitracing.com/parts/bor-40722summitracing_logo.png Mufflers Multi-Core Mufflers 0 0 0 0 0 21" N N $315.99
40728 XR-1® Collector Muffler 2.25" Inlet 4" Outlet 20.5"x6.75" Round - Racing Muffler part # 40728 XR-1® Collector Muffler 2.25" Inlet 4" Outlet 20.5"x6.75" Round - Racing Muffler 25x11x11 Round Universal 2.25" Inlets/ 4" Outlet XR-1 F 12 CATALOG N Center/Center XR1 20.5" x 6.75" Mufflers Standard Collector Mufflers 0 0 0 0 0 23" N N $740.99
40741 XR-1® Multi-Core 4" Center-Center 16"x6.25" Round - Racing Muffler part # 40741 XR-1® Multi-Core 4" Center-Center 16"x6.25" Round - Racing Muffler 32x8x8 Round Universal 4" XR-1 F 12 CATALOG N Center/Center XR1 16" x 6.25" Summit Racing Equipment978ATEMOTOATEMOT240741https://www.summitracing.com/parts/bor-40741summitracing_logo.png Mufflers Multi-Core Mufflers 0 0 0 0 0 21" N N $335.99
40941 XR-1® Sportsman 2.5" Center-Center 12"x4.5"x7.88" - Racing Muffler part # 40941 XR-1® Sportsman 2.5" Center-Center 12"x4.5"x7.88" - Racing Muffler 19x6x10 Oval Universal 2.5" XR-1 F 7 CATALOG N Center/Center XR1 12" x 4.5" x 7.88" Parts Via7900PARTSVIA40941https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40941/1partsvia_logo.pngStreetsideAuto.com2981KEYAUTOKEYAUT240941http://www.streetsideauto.com/p/borla-xr-1-stainless-sportsman-racing-40941streetside_logo.pngSummit Racing Equipment979ATEMOTOATEMOT240941https://www.summitracing.com/parts/bor-40941summitracing_logo.pngSS-Exhaust.com7222TURN1440941http://www.ss-exhaust.com/borla-40941/ssexhaust_logo.pngJEGS High Performance113JEGAUTO40941http://www.jegs.com/i/Borla/157/40941/10002/-1jegs_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 17" N N $159.99
40942 XR-1® Sportsman 2.5" Center-Center 16"x4.5"x7.88" - Racing Muffler part # 40942 XR-1® Sportsman 2.5" Center-Center 16"x4.5"x7.88" - Racing Muffler 24x6x10 Oval Universal 2.5" XR-1 F 11 CATALOG N Center/Center XR1 16" x 4.5" x 7.88" Parts Via7901PARTSVIA40942https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40942/1partsvia_logo.pngStreetsideAuto.com2968KEYAUTOKEYAUT240942http://www.streetsideauto.com/p/borla-xr-1-stainless-sportsman-racing-40942streetside_logo.pngLM Performance9359LMPERF40942http://www.lmperformance.com/828549/40942-borla-non-spec-vehicle-all-xr-1-stainless-sportsman-racing-mufflers.htmllmp_logo.pngSummit Racing Equipment980ATEMOTOATEMOT240942https://www.summitracing.com/parts/bor-40942summitracing_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 21" N N $173.99
40943 XR-1® Sportsman 3" Center-Center 12"x4.5"x7.88" - Racing Muffler part # 40943 XR-1® Sportsman 3" Center-Center 12"x4.5"x7.88" - Racing Muffler 19x6x10 Oval Universal 3" XR-1 F 7 CATALOG N Center/Center XR1 12" x 4.5 x 7.88" Parts Via7902PARTSVIA40943https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40943/1partsvia_logo.pngSS-Exhaust.com7224TURN1440943http://www.ss-exhaust.com/borla-40943/ssexhaust_logo.pngJEGS High Performance114JEGAUTO40943http://www.jegs.com/i/Borla/157/40943/10002/-1jegs_logo.pngStreetsideAuto.com2960KEYAUTOKEYAUT240943http://www.streetsideauto.com/p/borla-xr-1-stainless-sportsman-racing-40943streetside_logo.pngSummit Racing Equipment981ATEMOTOATEMOT240943https://www.summitracing.com/parts/bor-40943summitracing_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 17" N N $168.99
40944 XR-1® Sportsman 3" Center-Center 16"x4.5"x7.88" - Racing Muffler part # 40944 XR-1® Sportsman 3" Center-Center 16"x4.5"x7.88" - Racing Muffler 28x7x10 Oval Universal 3" XR-1 F 8 CATALOG N Center/Center XR1 16" x 4.5" x 7.88" JEGS High Performance118JEGAUTO40944http://www.jegs.com/i/Borla/157/40944/10002/-1jegs_logo.pngParts Via7903PARTSVIA40944https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40944/1partsvia_logo.pngSS-Exhaust.com7225TURN1440944http://www.ss-exhaust.com/borla-40944/ssexhaust_logo.pngStreetsideAuto.com2899KEYAUTOKEYAUT240944http://www.streetsideauto.com/p/borla-xr-1-stainless-sportsman-racing-40944streetside_logo.pngSummit Racing Equipment982ATEMOTOATEMOT240944https://www.summitracing.com/parts/bor-40944summitracing_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 21" N N $173.99
40945 XR-1® Sportsman 3.5" Center-Center 12"x4.5"x7.88" - Racing Muffler part # 40945 XR-1® Sportsman 3.5" Center-Center 12"x4.5"x7.88" - Racing Muffler 19x6x10 Oval Universal 3.5" XR-1 F 7 CATALOG N Center/Center XR1 12" x 4.5" x 7.88" Parts Via7904PARTSVIA40945https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40945/1partsvia_logo.pngSummit Racing Equipment983ATEMOTOATEMOT240945https://www.summitracing.com/parts/bor-40945summitracing_logo.pngJEGS High Performance115JEGAUTO40945http://www.jegs.com/i/Borla/157/40945/10002/-1jegs_logo.pngStreetsideAuto.com2913KEYAUTOKEYAUT240945http://www.streetsideauto.com/p/borla-xr-1-stainless-sportsman-racing-40945streetside_logo.pngSS-Exhaust.com7226TURN1440945http://www.ss-exhaust.com/borla-40945/ssexhaust_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 17" N N $200.99
40946 XR-1® Sportsman 3.5" Center-Center 16"x4.5"x7.88" - Racing Muffler part # 40946 XR-1® Sportsman 3.5" Center-Center 16"x4.5"x7.88" - Racing Muffler 24x6x10 Oval Universal 3.5" XR-1 F 7 CATALOG N Center/Center XR1 16" x 4.5" x 7.88" JEGS High Performance119JEGAUTO40946http://www.jegs.com/i/Borla/157/40946/10002/-1jegs_logo.pngSummit Racing Equipment984ATEMOTOATEMOT240946https://www.summitracing.com/parts/bor-40946summitracing_logo.pngParts Via7905PARTSVIA40946https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40946/1partsvia_logo.pngSS-Exhaust.com7227TURN1440946http://www.ss-exhaust.com/borla-40946/ssexhaust_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 21" N N $212.99
40947 XR-1® Sportsman 4" Center-Center 12"x4.5"x7.88" - Racing Muffler part # 40947 XR-1® Sportsman 4" Center-Center 12"x4.5"x7.88" - Racing Muffler 19x6x10 Oval Universal 4" XR-1 F 10 CATALOG N Center/Center XR1 12" x 4.5" x 7.88" Summit Racing Equipment985ATEMOTOATEMOT240947https://www.summitracing.com/parts/bor-40947summitracing_logo.pngParts Via7906PARTSVIA40947https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40947/1partsvia_logo.pngStreetsideAuto.com2900KEYAUTOKEYAUT240947http://www.streetsideauto.com/p/borla-xr-1-stainless-sportsman-racing-40947streetside_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 17" N N $212.99
40948 XR-1® Sportsman 4" Center-Center 16"x4.5"x7.88" - Racing Muffler part # 40948 XR-1® Sportsman 4" Center-Center 16"x4.5"x7.88" - Racing Muffler 23x10x7 Oval Universal 4" XR-1 F 10 CATALOG N Center/Center XR1 16" x 4.25" x 7.88" StreetsideAuto.com2914KEYAUTOKEYAUT240948http://www.streetsideauto.com/p/borla-xr-1-stainless-sportsman-racing-40948streetside_logo.pngSummit Racing Equipment986ATEMOTOATEMOT240948https://www.summitracing.com/parts/bor-40948summitracing_logo.pngParts Via7907PARTSVIA40948https://borla.partsvia.com/b2c/cart/addAndCheckout/BOR40948/1partsvia_logo.png Mufflers Sportsman Mufflers 0 0 0 0 0 21" N N $239.99
40976 XR-1® Shorty Collector Muffler 2.25" Inlet 4" Outlet 14"x6.75" Round - Racing Muffler part # 40976 XR-1® Shorty Collector Muffler 2.25" Inlet 4" Outlet 14"x6.75" Round - Racing Muffler 25x11x11 Round Universal 2.25" Inlets/ 4" Outlet XR-1 F 11 CATALOG N Center/Center XR1 14" x 6.75" Mufflers Shorty Collector Mufflers 0 0 0 0 0 16.5" N N $732.99
40977 XR-1® Shorty Collector Muffler 2.375" Inlet 4.5" Outlet 14"x6.75" Round - Racing Muffler part # 40977 XR-1® Shorty Collector Muffler 2.375" Inlet 4.5" Outlet 14"x6.75" Round - Racing Muffler 25x11x11 Round Universal 2.375" Inlets/ 4.5" Outlet XR-1 F 11 CATALOG N Center/Center XR1 14" x 6.75" Mufflers Shorty Collector Mufflers 0 0 0 0 0 16.5" N N $732.99
40997 XR-1® Shorty Collector Muffler 2.125" Inlet 3.5" Outlet 14"x6.25" Round - Racing Muffler part # 40997 XR-1® Shorty Collector Muffler 2.125" Inlet 3.5" Outlet 14"x6.25" Round - Racing Muffler 24x10x9 Round Universal 2.125" Inlets/ 3.5" Outlet XR-1 F 10 CATALOG N Center/Center XR1 14" x 6.25" Mufflers Shorty Collector Mufflers 0 0 0 0 0 16.5" N N $717.99