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Yamaha Star
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AIS Removal Kit"A MUST HAVE when installing Aftermarket Pipes" The stock Air Induction System (AIS) introduces fresh air into the hot exhaust stream at the exhaust ports which causes un-combusted gasses to ignite creating a backfire (especially during deceleration). With stock, highly baffled exhaust systems, it's difficult to hear. But when installing aftermarket exhaust systems, this backfiring becomes very loud and annoying. Furthermore at thousands of RPMs, the AIS creates a virtual "torch" at the exhaust port, resulting in extremely high temperatures which can quickly cause bluing of Chrome and overheating of Ceramic Pipe coatings (which can void warranties). Also, during tuning the fresh air introduced by the AIS into the exhaust stream will create an incorrect "lean" AFR (Air to Fuel Ratio) reading which often causes mechanics to over compensate and adjust the AFR to a very rich setting. Our AIS Removal Kits stop annoying backfires, enables better tuning and cleans up the engine by removing clutter off of the engine. Fitment:
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May not be legal for use in all states
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