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Industrial Injection S300 SX-E single turbo kit for 2003–2007 5.9 Cummins engines combines 63/74 compressor and turbine sizing with a 0.91 A/R turbine housing in a single-turbo kit. Designed around the S300 SX-E architecture, the kit aims to enhance mid-to-top-end flow while retaining manageable spool for modified Cummins powertrains and is supplied as a replacement turbo solution for the specified engines.
Industrial Injection 03-07 5.9 Cummins S300 SX-E Single Turbo Kit 63/74 w/ .91 A/R
