HMF Racing Yamaha YXZ 1000R Block Off Kit

HMF Racing

HMF Racing Yamaha YXZ 1000R Block Off Kit

Sale price$39.95
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SKU: 644752360099
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The AIS (Air Injection System) Block Offs are designed to give you an accurate AFR (Air Fuel Ratio) reading when using a wide-band oxygen sensor to monitor AFR on the Yamaha YXZ 1000R. Whether using an automatic tuner or monitoring the AFR, the AIS Block Offs eliminate the addition of oxygen to the exhaust system, creating a true AFR reading.