Supertech retainers are CNC machined with strict tolerances and high quality material to give the best performance and durability.
Supertech Dual Valve Spring and Retainer Kit Mini Cooper R53
£658.21
Supertech Valve Guide Intake Exhaust Mini Cooper R56 Std size
£9.60
Supertech Titanium retainer Mini R56. Similar to OEM. Fits OEM spring or SPR-MC56BE
£20.14
