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Difference between 06-07 and 08-09 Piston.

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The difference is the compression ratio. The piston kits that are split up 04-05, 06-07, 08-09 are going to be running the stock compression which was increased every couple of years. The aftermarket ones listed 04-09 are running the same compression ratio for all years.

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Pretty sure the valve cutouts/indents are different on the 08-09 piston.

Edited by sjvmtb

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