VALVE SPRINGS / RETAINERS
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XDP XD389 PERFORMANCE VALVE SPRINGS AND RETAINER KIT 1999.5-2003 FORD POWERSTROKE 7.3L
XTREME DIESEL PERFORMANCE
$399.95Fortify the valvetrain in your 1989-1998 Dodge 5.9L Cummins when you install the XDP Performance Valve Springs and Retainer Kit XD389. Valve springs are a vital upgrade that are often ignored in many performance builds. The stock valve springs in your...$399.95 -
XDP XD388 HEAVY DUTY HIGH BOOST VALVE SPRING SET 2003-2010 FORD POWERSTROKE 6.0L/6.4L
XTREME DIESEL PERFORMANCE
$399.95The XDP Heavy Duty High Boost Valve Spring Set XD388 is an essential upgrade to strengthen and gain control of the valvetrain on your 2003-2010 Ford 6.0L/6.4L Powerstroke. These valve springs deliver improved valve control over a factory valve spring...$399.95