Our camshafts are Made in Japan from premium materials. Our cams are precision ground from billet blanks using high-tolerance equipment, not welded and reground. These kits come complete and there’s no need for additional purchases. When performance counts, trust Yoshimura.
- Camshafts w/ adjustable cam sprockets
- Higher lift and longer duration than stock
- Base Circle : 27mm (STD 28mm)
- Engine rev limit can be raised up to 14,000 rpm by EM Pro. (STD 13,500 rpm)
- MAX LIFT (mm) : IN 10.10mm / EX 8.80mm
- 1mm DURATION (degrees) : IN 258 degrees / EX 250 degrees
- Standard Tappet Clearance (mm) : IN 0.13mm / EX 0.15mm
- May require cylinder head modification
NOTE – These cams are designed with smaller diameter base circle than stock. Additional tappet shims required.
NOTE FOR 2012 GSX-R1000 Models: OEM exhaust camshaft spec has been changed from 2009-2011 to 2012, our race kit camshaft set is required to install with Valve spring seat shim 0.5mm/1 valve on exhaust side, and they are supplied with our current production.
* Cam timing should be set by a qualified mechanic to ensure proper function. Improper installation or cam timing could result in catastrophic engine failure.
Know you’re racing with the best.
Yoshimura R&D is the only authorized distributor in North America for our sister companies Yoshimura Japan (YJP) and Yoshimura Asia (YAT). YJP/YAT develop and test racing components that are un-restricted versions than the choked-down systems which are required for more restrictive marketplaces like Japan and Europe. This imported product is specially configured for less restrictive markets. In other words, you’re getting a custom exhaust that’s perfect for racing in the US market.
What your missing if you don’t buy U.S. spec through us!
- In-house warranty and technical support
- Certificate of authenticity
- Full 12-month warranty
Instructions and Parts Diagram
Instructions / Parts Diagram
Fast Shipping and Professional Packaging
We have a range of shipping options thanks to our long-term relationship with UPS FedEx DHL. Our warehouse staff is highly skilled and will wrap your goods in accordance with our exact and precise specifications. Your goods will undergo a thorough examination and will be properly packaged prior to being delivered. We ship to thousands of customers every day from all over the world. This is a sign of our determination to be the largest online retailer in the world. The warehouses and centers for distribution are in Europe, as well as the USA.
Orders that include more than 1 item are assigned processing times in accordance with the item.
We will carefully examine all items ordered before shipping. Most orders are shipped within 48 hours. The estimated delivery time is between 3 and 7 days.
Returns
We do not manage the stock in our factory and warehouse. The actual levels of stock can change at any time. Please be aware that it's possible that your order will run out of stock even after you have placed the order.
Our policy lasts thirty days. If 30 days have passed by since your purchase however, we're unable to give you a return or exchange.
Your item must be in the original packaging and in good condition. It must also not be used. You must have the item in its original packaging.
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