Pro CircuitOfficial Home Page
Body & Fairings
Brakes
Drivetrain & Chain
Exhaust
Shirts
Suspension
Tools
Sort By
Pro Circuit Ti-4GP Full System Exhaust Honda CRF-250R 4H04250R-TI-GP
Pro Circuit - Exhaust
Lowest Price:
$849.95
See Details
The Pro Circuit Ti-4GP Complete System is designed as a total performance exhaust system. This exhaust system has been dyno and track tested by riders like James Stewart, Ricky Carmichael and Ryan Villopoto as a no-compromise full-race exhaust. The ultra-lightweight titanium Ti-4GP is Pro Circuit's premium exhaust system and it includes their titanium header pipe. The Ti-4GP exhaust will boost performance from bottom all the way to the top end, making it easier to ride and lowering lap times. The silencer can is easily repacked simply by removing the inlet cap screws and re-wrapping the...
Pro Circuit TI-4GP Full System Exhaust Honda CRF450R 2007-2008 4H08450-TI-GP
Pro Circuit - Exhaust
Lowest Price:
$899.95
See Details
The Pro Circuit Ti-4GP Complete System is designed as a total performance exhaust system. This exhaust system has been dyno and track tested by riders like James Stewart, Ricky Carmichael and Ryan Villopoto as a no-compromise full-race exhaust. The ultra-lightweight titanium Ti-4GP is Pro Circuit's premium exhaust system and it includes their titanium header pipe. The Ti-4GP exhaust will boost performance from bottom all the way to the top end, making it easier to ride and lowering lap times. The silencer can is easily repacked simply by removing the inlet cap screws and re-wrapping the...
Pro Circuit Ti-4GP Full System Exhaust For Suzuki RMZ-250 07-09 4S09250-TI-GP
Pro Circuit - Exhaust
Lowest Price:
$949.95
See Details
The Pro Circuit Ti-4GP Complete System is designed as a total performance exhaust system. This exhaust system has been dyno and track tested by riders like James Stewart, Ricky Carmichael and Ryan Villopoto as a no-compromise full-race exhaust. The ultra-lightweight titanium Ti-4GP is Pro Circuit's premium exhaust system and it includes their titanium header pipe. The Ti-4GP exhaust will boost performance from bottom all the way to the top end, making it easier to ride and lowering lap times. The silencer can is easily repacked simply by removing the inlet cap screws and re-wrapping the...
Pro Circuit Ti-4GP Full System Exhaust Yamaha YZ450F 06-9 4Y09450-TI-GP
Pro Circuit - Exhaust
Lowest Price:
$949.95
See Details
The Pro Circuit Ti-4GP Complete System is designed as a total performance exhaust system. This exhaust system has been dyno and track tested by riders like James Stewart, Ricky Carmichael and Ryan Villopoto as a no-compromise full-race exhaust. The ultra-lightweight titanium Ti-4GP is Pro Circuit's premium exhaust system and it includes their titanium header pipe. The Ti-4GP exhaust will boost performance from bottom all the way to the top end, making it easier to ride and lowering lap times. The silencer can is easily repacked simply by removing the inlet cap screws and re-wrapping the...
Pro Circuit Ti-4R Exhaust Full System Stainless Steel For Husqvarna TC250 10
Pro Circuit - Exhaust
Lowest Price:
$999.95
See Details
Top-of-the-line performance and power Tapered headpipe for better overall power from bottom to top end Specially designed mounting bracket for increased strength and durability Internal design reduces noise output; meet 94 dB AMA and FIM sound limits Welded end cap design Ti-4R features titanium construction for extreme light weight Silencer and end cap graphics Please Note: The image displayed is representative of the item, but may vary depending on your specific model.
Pro Circuit Ti-4R Full System Exhaust Honda CRF-450R 09 4H09450-TI-4R
Pro Circuit - Exhaust
Lowest Price:
$999.95
See Details
Pro Circuit has designed the brand-new Ti-4R four-stroke race exhaust system for all current model race bikes. The Ti-4R, which was developed over the last couple AMA National and Supercross seasons, features internal design changes that reduce noise and improve power delivery from bottom to top. The titanium head pipe and silencer canister guarantee extreme light weight, while Pro Circuit' unparalleled performance and craftsmanship continue to set new industry standards. To complete the package, Pro Circuit designed a CNC-machined billet-aluminum mounting bracket to increase durability and...
Pro Circuit Ti-4R Full System Exhaust For Suzuki RMZ-250 07-09 4S09250-TI-4R
Pro Circuit - Exhaust
Lowest Price:
$999.95
See Details
Pro Circuit has designed the brand-new Ti-4R four-stroke race exhaust system for all current model race bikes. The Ti-4R, which was developed over the last couple AMA National and Supercross seasons, features internal design changes that reduce noise and improve power delivery from bottom to top. The titanium head pipe and silencer canister guarantee extreme light weight, while Pro Circuit' unparalleled performance and craftsmanship continue to set new industry standards. To complete the package, Pro Circuit designed a CNC-machined billet-aluminum mounting bracket to increase durability and...
Pro Circuit T-4 Exhaust System For Kawasaki Brute Force 750 4QK05750
Pro Circuit - Exhaust
Lowest Price:
$499.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Motocross Offroad Exhaust System For Kawasaki KFX-90 4QK07090
Pro Circuit - Exhaust
Lowest Price:
$279.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 4-Stroke Offroad Exhaust System Yamaha TTR-110 2008-09 4Y08110
Pro Circuit - Exhaust
Lowest Price:
$264.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Offroad Exhaust System For Yamaha TTR-125 2000-14 4Y00125
Pro Circuit - Exhaust
Lowest Price:
$264.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Exhaust System For Yamaha TTR-90 4Y00090
Pro Circuit - Exhaust
Lowest Price:
$264.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Full System Exhaust ATV Kawasaki KFX-450R 4QK08450
Pro Circuit - Exhaust
Lowest Price:
$699.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Full System Exhaust ATV Kawasaki KFX-50 4QK07050
Pro Circuit - Exhaust
Lowest Price:
$279.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Full System 4-Stroke Offroad Exhaust Honda CRF-150F 2003-05
Pro Circuit - Exhaust
Lowest Price:
$299.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Full System Exhaust Kawasaki KLX-110 Suzuki DRZ-110 4K02110
Pro Circuit - Exhaust
Lowest Price:
$264.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Full System Exhaust Kawasaki KLX-125 Suzuki DRZ-125 4S03125
Pro Circuit - Exhaust
Lowest Price:
$249.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Full System Exhaust For Suzuki DR-250 DR-350 90-99 4S90250
Pro Circuit - Exhaust
Lowest Price:
$499.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 Full System 4-Stroke Offroad Exhaust for Honda CRF150F 2006-09
Pro Circuit - Exhaust
Lowest Price:
$299.95
See Details
The Pro Circuit T-4 system is an aluminum and stainless replica of Pro Circuit's more-exotic titanium Ti-4 exhaust Although the T-4 is slightly heavier than the Ti-4, it still offers a considerable weight savings when compared to the OEM exhaust system This exhaust system is ideal for a racer on a budget that is not willing to compromise on performance The only difference between Pro Circuit's T-4 and Ti-4 is that high-quality stainless steel replaces the Ti- 4 titanium The T-4 comes complete with a stainless head pipe that works in conjunction with the muffler to produce more power from...
Pro Circuit T-4 GP Offroad Low Boy Exhaust System for Yamaha WR250R 250X 2008-10
Pro Circuit - Exhaust
Lowest Price:
$779.95
See Details
Complete systems from front to back Feature an aluminum canister and high-grade stainless steel mid-pipe Packed with performance features tailored to the demands of serious racers and developed to lower and centralize the machine's center of gravity, which improves handling and critical clearance In addition to an instant hook-up under power, the system also offers huge horsepower gains across the rpm range Each has been rigorously track- and dyno-tested to yield peak performance Fits the following Yamaha models: WR250R 2008-2010 WR250X 2008-2010
Pro Circuit Platinum 2-Stroke Offroad Exhaust Pipe Yamaha YZ-85 02-09 PY02085P
Pro Circuit - Exhaust
Lowest Price:
$229.95
See Details
The Platinum pipe is designed after Pro Circuit's world famous "Works" pipe It offers the same performance gains, while the Platinum finish reduces rider maintenance and helps protect the pipe from nature's elements The Platinum pipe is the ideal choice for people who race or ride in extreme weather conditions Rugged exhaust pipe inspired by Pro Circuit's "Works" systems High-quality carbon steel construction for exceptional fit and performance Hand-welded and pounded seams, CNC-machined exhaust flange and reinforced mounting brackets and stinger for increased strength and durability Please...
Pro Circuit Platinum Motocross Offroad Exhaust Pipe KTM 125 SX 2000-03 PT00125P
Pro Circuit - Exhaust
Lowest Price:
$239.95
See Details
The Platinum pipe is designed after Pro Circuit's world famous "Works" pipe It offers the same performance gains, while the Platinum finish reduces rider maintenance and helps protect the pipe from nature's elements The Platinum pipe is the ideal choice for people who race or ride in extreme weather conditions Rugged exhaust pipe inspired by Pro Circuit's "Works" systems High-quality carbon steel construction for exceptional fit and performance Hand-welded and pounded seams, CNC-machined exhaust flange and reinforced mounting brackets and stinger for increased strength and durability Please...
Pro Circuit Platinum Motocross Offroad Exhaust Pipe KTM 125 SX 2004-06 PT04125P
Pro Circuit - Exhaust
Lowest Price:
$239.95
See Details
The Platinum pipe is designed after Pro Circuit's world famous "Works" pipe It offers the same performance gains, while the Platinum finish reduces rider maintenance and helps protect the pipe from nature's elements The Platinum pipe is the ideal choice for people who race or ride in extreme weather conditions Rugged exhaust pipe inspired by Pro Circuit's "Works" systems High-quality carbon steel construction for exceptional fit and performance Hand-welded and pounded seams, CNC-machined exhaust flange and reinforced mounting brackets and stinger for increased strength and durability Please...
Pro Circuit Platinum Exhaust Pipe KTM 144 SX 150 SX 08-09
Pro Circuit - Exhaust
Lowest Price:
$239.95
See Details
The Platinum Pipe from Pro Circuit is a rugged exhaust pipe that utilizes plating on the body to protect it from the everyday wear and tear of motorcycle riding Unique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic look Nickel plating also increases part life 2-10 times Stamped AKDQ high-quality carbon steel construction for exceptional fit and performance Hand-welded and pounded seams Embossed nameplate and CNC-machined exhaust flange Reinforced mounting brackets and stinger for increased strength and durability Fits the following KTM models: 144...