High Rate valve spring set
2X Entries Into Our F80 M3 Sweepstakes
High Rate valve spring set
2X Entries Into Our F80 M3 Sweepstakes
+1mm oversized valve head diameter, single groove keeper setup for high RPM use
*Oversized valves require extra machine work to the cylinder head.*
Includes a $400 refundable core charge
Fits manual transmission only
Includes a $400 refundable core charge
Fits manual transmission only
Includes a $400.00 refundable core charge
Fits automatic transmission only
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