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Competition Suspension, Inc. was founded in 2009. CSI saw a big gap in the oval track racing shock market. The level of technology in Indy Car and Nascar was far advanced from what short track teams were receiving. CSI set out to build reasonably priced quality dirt track racing shocks, utilizing the same technologies used in the upper levels of motorsports. The first set of CSI Shocks was built in April of 2009, and the CSI philosophy has never changed. Build the best dirt racing shocks in the industry; CSI doesn't cut corners on anything.