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Pro Circuit T-4 4-Stroke Silencer 4Y03450
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Pro Circuit T-4 4-Stroke Silencer 4Y03450
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$371.99
Exhaust: Pro Circuit T-4 4-Stroke Silencer 4Y03450
Manufacturer: Pro Circuit
Dennis Kirk Part #: 448521
Pro Circuit T-4 4-Stroke Silencer: Manufacturer part # 4Y03450 - Designed to boost output throughout the powerband. Fine-tune your power delivery by changing end caps (See T-4 Replacement End Caps under Exhaust Replacement Parts and Accessories. Lighter than stock. Extruded 6063 aluminum silencer resists oxidation and features long-lasting packing material. Quick access to the U.S.F.S. approved screen spark arrester through removable end cap tip. Can be used with OEM or Pro Circuit headpipes (sold separately). NOTE: For Yamaha WR450F 2003-05 a part# 43-1710 Silencer Mount kit is required. 4Y03450
1 on hand
More Info/Options for Pro Circuit T-4 4-Stroke Silencer 4Y03450
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$393.99
Exhaust: Pro Circuit Type 496 Spark Arrestor Silencer 4Y03450496
Manufacturer: Pro Circuit
Dennis Kirk Part #: 448900
Pro Circuit Type 496 Spark Arrestor Silencer: Manufacturer part # 4Y03450496 - Designed to reduce exhaust noise level to legal dB while producing a noticeable gain in horsepower over OEM systems. State-of-the-art system uses a longer aluminum body and special internal E-Glass packing for maximum sound disbursement for less noise and more power. Lightweight brushed aluminum muffler body. FIM-approved stainless steel end cap and intake tube. Hand-assembled and -welded for a fit and finish that would rival any Factory Works part. Includes lightweight aluminum mounting brackets. Wire mesh removable U.S. Forest Serive-approved spark arrester. Modular end caps.. 4Y03450496
1 on hand
More Info/Options for Pro Circuit Type 496 Spark Arrestor Silencer 4Y03450496
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$179.99
Exhaust: Pro Circuit Stainless Steel Header 4Y03450H
Manufacturer: Pro Circuit
Dennis Kirk Part #: 431511
Pro Circuit Stainless Steel Header: Manufacturer part # 4Y03450H - Stainless steel headers are specially designed to improve performance when compared to stock headers; built from 304 stainless steel to ensure maximum durability and corrosion resistance. Note: Exhaust discoloration (blueing) is caused by engine conditions such as cam timing, fuel-air mixture, operating temperature, etc. It is not the result of defective manufacturing, therefore it is not covered by any warranty. See the Chems/Lubes section for products to help remove or prevent exhaust discoloration.. 4Y03450H
1 on hand
More Info/Options for Pro Circuit Stainless Steel Header 4Y03450H
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$247.99
Exhaust: Pro Circuit Titanium Header 4Y03450HTI
Manufacturer: Pro Circuit
Dennis Kirk Part #: 448522
Pro Circuit Titanium Header: Manufacturer part # 4Y03450HTI - Titanium headers are required on some models for maximum engine power. Lightweight and hand-assembled for a perfect fit and works type finish. Note: Exhaust discoloration (blueing) is caused by engine conditions such as cam timing, fuel-air mixture, operating temperature, etc. It is not the result of defective manufacturing, therefore it is not covered by any warranty. See the Chems/Lubes section for products to help remove or prevent exhaust discoloration.. 4Y03450HTI
1 on hand
More Info/Options for Pro Circuit Titanium Header 4Y03450HTI
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$458.99
Exhaust: Pro Circuit Ti-4 4-Stroke Titanium Silencer 4Y03450TI
Manufacturer: Pro Circuit
Dennis Kirk Part #: 448523
Pro Circuit Ti-4 4-Stroke Titanium Silencer: Manufacturer part # 4Y03450TI - Lightweight aerospace titanium for superior weight savings. Lightening quick throttle response, stronger response during hard acceleration and increased horsepower across the powerband. Modular end cap design allows for tunable power to personal preference and riding conditions. U.S. Forest Service approved wire meshed spark arrestor that can be removed for closed course racing. Can be used with OEM and Pro Circuit head pipes (sold separately). Note: Yamaha WR450F 2003-05 requires a Silencer Mount Kit part #43-1701.. 4Y03450TI
1 on hand
More Info/Options for Pro Circuit Ti-4 4-Stroke Titanium Silencer 4Y03450TI
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$743.99
Exhaust: Pro Circuit Ti-4 GP Low Boy 4-Stroke Exhaust System 4Y03450TIGP
Manufacturer: Pro Circuit
Dennis Kirk Part #: 431850
Pro Circuit Ti-4 GP Low Boy 4-Stroke Exhaust System: Manufacturer part # 4Y03450TIGP - Pro Circuits newest systems offer top-of-the-line performance and power. Complete systems from front to back. Ti-4 GP systems feature high-quality grade-two aerospace titanium throughout to provide huge weight savings and unique highlights. Packed with performance features tailored to the demands of serious racers and developed to lower and centralize the machines center of gravity, which improves handling and critical clearances. In addition to an instant hook-up under power, the systems also offer huge horsepower gains across the rpm range. Each model has been rigorously track- and dyno-tested to yield peak performance. All silencers feature domed Euro-style end caps unless noted. , , Included items: , Head pipe, S pipe and muffler assembly, Instruction sheet. 4Y03450TIGP
1 on hand
More Info/Options for Pro Circuit Ti-4 GP Low Boy 4-Stroke Exhaust System 4Y03450TIGP
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$284.99
Exhaust: Pro Circuit T-4 4-Stroke Silencer 4Y05230
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432429
Pro Circuit T-4 4-Stroke Silencer: Manufacturer part # 4Y05230 - Improved power delivery and exhaust note. Body is made from lightweight 6061 T-6 brushed aluminum and the end cap and intake tube are stainless steel. Tunable end caps allow fine-tuning of power delivery for different types of riding and terrain. Silencers include wire-meshed spark arrester that can be removed for closed-course racing. Steel Allen head screws make repacking an easy task. Exclusive E-glass pillow packing.. 4Y05230
2 on hand
More Info/Options for Pro Circuit T-4 4-Stroke Silencer 4Y05230
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$283.99
Exhaust: Pro Circuit T-4 4-Stroke Exhaust System w/Headpipe 4Y06050
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432619
Pro Circuit T-4 4-Stroke Exhaust System w/Headpipe: Manufacturer part # 4Y06050 - Modeled on the T-4, the Ti-4 system utilizes two types of lightweight aerospace titanium for superior weight savings. Modular end-cap design allows for tunable power to personal preference and riding conditions. Silencers include U.S.F.S.-approved wire-meshed spark arrestor that can be removed for closed-course racing. Steel Allen head screws make repacking an easy task. Exclusive E-glass pillow packing. S-wedge-fit titanium intake tube. Designed to use all the OEM hardware for a trouble-free installation. Extensively track- and dyno-tested. Systems are complete and include header.. 4Y06050
1 on hand
More Info/Options for Pro Circuit T-4 4-Stroke Exhaust System w/Headpipe 4Y06050
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$371.99
Exhaust: Pro Circuit Ti-4 Titanium Exhaust System w/Headpipe 4Y06050TI
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432620
Pro Circuit Ti-4 Titanium Exhaust System w/Headpipe: Manufacturer part # 4Y06050TI - Modeled on the T-4, the Ti-4 system utilizes two types of lightweight aerospace titanium for superior weight savings. Modular end-cap design allows for tunable power to personal preference and riding conditions. Silencers include U.S.F.S.-approved wire-meshed spark arrestor that can be removed for closed-course racing. Steel Allen head screws make repacking an easy task. Exclusive E-glass pillow packing. S-wedge-fit titanium intake tube. Designed to use all the OEM hardware for a trouble-free installation. Extensively track- and dyno-tested. Systems are complete and include header.. 4Y06050TI
2 on hand
More Info/Options for Pro Circuit Ti-4 Titanium Exhaust System w/Headpipe 4Y06050TI
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$371.99
Exhaust: Pro Circuit T-4 4-Stroke Silencer 4Y06250
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432621
Pro Circuit T-4 4-Stroke Silencer: Manufacturer part # 4Y06250 - Improved power delivery and exhaust note. Body is made from lightweight 6061 T-6 brushed aluminum and the end cap and intake tube are stainless steel. Tunable end caps allow fine-tuning of power delivery for different types of riding and terrain. Silencers include wire-meshed spark arrester that can be removed for closed-course racing. Steel Allen head screws make repacking an easy task. Exclusive E-glass pillow packing.. 4Y06250
5 on hand
More Info/Options for Pro Circuit T-4 4-Stroke Silencer 4Y06250
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$415.99
Exhaust: Pro Circuit Type 496 Spark Arrester Silencer 4Y06250496
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432622
Pro Circuit Type 496 Spark Arrester Silencer: Manufacturer part # 4Y06250496 - Revolutionary new system uses a longer aluminum body and special internal E-glass packing to lower noise output to legal dB without sacrificing power. Produces an impressive gain in horsepower when compared to OEM. Stainless steel intake tube and FIM-approved end cap. Completely hand-assembled and -welded for a fit and finish that would rival any Factory Works part. Lightweight aluminum mounting brackets. Wire-mesh, removable spark arrester. Modular end caps for tunable power. INCLUDED ITEMS: One slip-on. Instruction sheet.. 4Y06250496
2 on hand
More Info/Options for Pro Circuit Type 496 Spark Arrester Silencer 4Y06250496
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$458.99
Exhaust: Pro Circuit Ti-4 4-Stroke Titanium Silencer 4Y06250TI
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432623
Pro Circuit Ti-4 4-Stroke Titanium Silencer: Manufacturer part # 4Y06250TI - Modeled on the T-4, the Ti-4 system utilizes two types of lightweight aerospace titanium for superior weight savings. Provide lightning-quick throttle response, stronger response during hard acceleration and increased horsepower across the powerband. Modular end-cap design allows for tunable power to personal preference and riding conditions. Silencers include U.S.F.S.-approved wire-meshed spark arrester that can be removed for closed-course racing. Steel Allen head screws make repacking an easy task. Exclusive E-glass pillow packing. Silencers can be used with OEM stock or a Pro Circuit header. Wedge-fit titanium intake tube. Designed to use all the OEM hardware for a trouble-free installation. Extensively track- and dyno-tested. Features Euro-style end caps. 4Y06250TI
1 on hand
More Info/Options for Pro Circuit Ti-4 4-Stroke Titanium Silencer 4Y06250TI
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$743.99
Exhaust: Pro Circuit Ti-4 GP Low Boy 4-Stroke Exhaust System 4Y06250TIGP
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432626
Pro Circuit Ti-4 GP Low Boy 4-Stroke Exhaust System: Manufacturer part # 4Y06250TIGP - Pro Circuits newest systems offer top-of-the-line performance and power. Complete systems from front to back utilize high-quality grade-two aerospace titanium throughout to provide huge weight savings and unique highlights. Packed with performance features tailored to the demands of serious racers and developed to lower and centralize the machines center of gravity, which improves handling and critical clearances. In addition to an instant hook-up under power, the systems also offer huge horsepower gains across the rpm range. Each model has been rigorously track- and dyno-tested to yield peak performance. INCLUDED ITEMS: One titanium header. One titanium tailpipe. One race muffler with aluminum sleeve. One 8mm x 25mm flange bolt. One 8mm large washer. One aluminum insert for rubber grommet. One 7mm spacer. One spacer nut. Three 2 1/2 in. exhaust springs. One header heatshield. One 8mm x 30mm flange bolt. One spring puller tool. One muffler mount rubber grommet. Two vinyl stickers. One instruction sheet.. 4Y06250TIGP
2 on hand
More Info/Options for Pro Circuit Ti-4 GP Low Boy 4-Stroke Exhaust System 4Y06250TIGP
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$371.99
Exhaust: Pro Circuit T-4 4-Stroke Silencer 4Y06450
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432627
Pro Circuit T-4 4-Stroke Silencer: Manufacturer part # 4Y06450 - Improved power delivery and exhaust note. Body is made from lightweight 6061 T-6 brushed aluminum and the end cap and intake tube are stainless steel. Tunable end caps allow fine-tuning of power delivery for different types of riding and terrain. Silencers include wire-meshed spark arrester that can be removed for closed-course racing. Steel Allen head screws make repacking an easy task. Exclusive E-glass pillow packing.. 4Y06450
1 on hand
More Info/Options for Pro Circuit T-4 4-Stroke Silencer 4Y06450
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$415.99
Exhaust: Pro Circuit Type 496 Spark Arrester Silencer 4Y06450496
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432628
Pro Circuit Type 496 Spark Arrester Silencer: Manufacturer part # 4Y06450496 - Revolutionary new system uses a longer aluminum body and special internal E-glass packing to lower noise output to legal dB without sacrificing power. Produces an impressive gain in horsepower when compared to OEM. Stainless steel intake tube and FIM-approved end cap. Completely hand-assembled and -welded for a fit and finish that would rival any Factory Works part. Lightweight aluminum mounting brackets. Wire-mesh, removable spark arrester. Modular end caps for tunable power.. 4Y06450496
1 on hand
More Info/Options for Pro Circuit Type 496 Spark Arrester Silencer 4Y06450496
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$174.99
Exhaust: Pro Circuit Stainless Steel Header 4Y06450H
Manufacturer: Pro Circuit
Dennis Kirk Part #: 432630
Pro Circuit Stainless Steel Header: Manufacturer part # 4Y06450H - Specially shaped stainless steel headers improve performance when compared to stock headers; built from 304 stainless steel to ensure maximum durability and corrosion resistance. INCLUDED ITEMS: One exhaust head pipe. Two exhaust springs. One instruction sheet.. 4Y06450H
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