My Cart



Xceldyne PSIMX2404 Replacement Exhaust Valve Springs


Generally ships to addresses in the contiguous United States the same business day if ordered by 12:15PM Central Time!

Purpose-built racing valve springs from the only dedicated racing spring manufacturer in the country.
Made from the highest quality Kobe spring wire.
Utilizes all of the same features and processes that we design into our entire racing spring line.
Designed for use with most cam grinds.
Single spring, low-drag design done right the first time.None of the crutched two-spring designs out there add to your valvetrain mass which in turn costs you horsepower.
Set of 2.
For Titanium Valve only
Kawasaki KFX400 2003-2006
Suzuki LT-R450 QuadRacer 2006-2009
Suzuki LT-Z400 QuadSport Z 2012
Suzuki LT-Z400 QuadSport Z 2003-2009
Suzuki LT-Z400 QuadSport Z LE 2012
Suzuki RM-Z450 2005-2012

Please Note: Ships same business day to contiguous US if ordered by 12:15 PM Central Time!

Note: PSIMX2404