Silvers NEOMAX Coilover Kit BMW 3 Series Rwd (E90/E92) (4 Cyl.) 2006-2012 Vehicle Model_Matrix you get large 4 piston

you get large 4 piston calipers that are OE equipment found on the STI

All pads come with edge chamfers

Finishing off this exhaust are dual 14" length mufflers and polished 304 stainless steel 4" double wall tips

All in all this Turbo XS RBV BOV kit for the WRX and STi is the best we have seen from Turbo XS as far as Blow off valves is concerned and it may be the best BOV on the market today for your WRX or STi

Subaru WRX or STi 2002-2007

Silvers NEOMAX Coilover Kit BMW 3 Series Rwd (E90/E92) (4 Cyl.) 2006-2012 Vehicle Model_Matrix you get large 4 pistonPart #: SB1005 Silvers NEOMAX Coilovers are perfect for street driving, and still outperform most on the track. The Silvers NEOMAX coilovers are a monotube shock, independently height adjustable, with 24 levels of dampening adjustment, and come with a 5 year limited warranty. Silver's NEOMAX Coilover Kit Features: Mono tube shock design, Increases shock oil capacity as well as displacement over twin tube designs for maximum performance. Adjustable T6