2002-2005     Z4     3

Billet stroker crankshaft for increased displacement and structural integrity

Its integrated 14-position slider system provides 7 inches of smooth travel

Service Details:

these valve springs provide enhanced valve control

BMW N20 / N26 Valve Springs by SuperTech 1300556 2002-2005 Z4 3SuperTech High Performance Valve Spring Kit, BMW N20 N26 Valve Spring Kit Supertech valve spring kits for BMW N20 and N26 engines provide unmatched valve control and reliability for high performance applications. Each kit includes premium valve springs, designed specifically for the N20 N26, to meet the demands of enthusiasts and professional racers. Built from top grade materials, Supertech valve springs offer superior spring rates and enhanced