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O.S. 21XZ-B V-Spec Off-Road Competition Buggy Engine [OSM12180] Scott Hawkersmith - Rating: Verified Owner Wednesday, March 06, 2013 I have raced and run numerous engines...this by far is the best engine for the money,,,I have run the OS speed for years and have found this engine performs just as well without the extra cost....Just be aware this is a racing engine so keep a good p3 plug in it and you will have no problems..... Back Write Review

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Thursday, May 23, 2013

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