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February 18, 2020

KLX110 and TT-R110E Exhaust Systems

Pro Circuit Exhaust Systems for the Older and Newer 110 Models


CORONA, CA - February 18, 2020 - Pro Circuit is excited to announce the release of a new T-6 exhaust system for each of the 2010-2020 Kawasaki KLX110 and 2008-2020 Yamaha TT-R110E models. The exhaust systems offer improved performance, durability and a professional look KLX110 and TT-R110E riders will be stoked on. The T-6 is constructed of a stainless steel head pipe, brushed aluminum canister and a carbon fiber end-cap. A United States Forest Service approved spark arrestor also comes equipped making them easy to alternate between off-road and closed-course racing. These systems are the perfect performance exhaust for both young and old riders looking to have a little fun in the dirt.


Pro Circuit. We Race.


February 11, 2020

2020 Yamaha YZ450F Race Piston

Greatly Increase Performance for Your new Yamaha Ride


CORONA, CA - February 11, 2020 - Offering our customers only the finest performance parts available is our goal here at Pro Circuit. Our newest product is a High-Compression Piston Kit for the 2020 YZ450F. Manufactured by JE Pistons to our exact specifications, Pro Circuit pistons are forged from high-quality aerospace aluminum alloy using advanced CNC-machined technologies. The result is a significant gain in low-end torque and high-RPM performance. Pro Circuit High-Compression Piston Kits are designed for superior performance in either stock or modified engines and is a must-have engine component for serious racers.


Pro Circuit. We Race.



All products manufactured and/or distributed by Pro Circuit Products, Inc. are offered and designed for use with standard machines. Pro Circuit Products, Inc. makes no claims as to the products effectiveness on modified machines. Pro Circuit Products, Inc. is the sole determiner of abuse, misuse, installation errors and modifications. We assume no liability for any errors in listings, specifications, part numbers, prices or model applications. Pro Circuit Products, Inc. reserves the right to change specifications, product descriptions, product quality, pricing and model applications at any time without prior oral or written notice and without further obligation.

Adding new components to your motorcycle (especially to the engine, suspension or braking system) may radically alter the acceleration, deceleration, handling and braking characteristics of your motorcycle. Ensure that all parts are installed and properly torqued per the instructions supplied with the part or to the motorcycle manufacturer's original specifications. Test the motorcycle with the new part(s) on level ground, at low speed, without any other vehicles or obstacles nearby, to ensure that it is working properly. Periodically recheck, adjust or replace the parts as may be necessary depending upon the terrain, use, mileage and rider input. Consult the instructions supplied with the part, or the motorcycle manufacturer's original specifications for further details. The failure to properly install, maintain, or familiarize yourself with the new part's use, and proper operation, may result in damage to the motorcycle, and/or a loss of control, resulting in serious injury or death. Buyers assume all risk for any and all damage caused to themselves, a third party and/or property by virtue of failure of these products. By installing and/or using a Pro Circuit Products, Inc. product, you hereby accept and understand these stated terms and conditions.


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