Rays 42MM 12x1.50 Formula FN-II Lug Nut Set 20 Special Lugs - Red PDM_high-flow-cat-pipes It allows you to control

It allows you to control how quickly the suspension compresses (moves inwards) when the vehicle encounters changing circumstances on the road or track

Tomei Procam Camshaft Set 272 Single AVCS - 2004-2007 Subaru WRX

Triangulated Aluminum Construction — Adds Chassis Rigidity Without Adding Weight

And if you do add aftermarket bars

the weighted knob uses additional mass to reduce the perceived effort of shifting and provide a more settled feel during rapid gear changes

Rays 42MM 12x1.50 Formula FN-II Lug Nut Set 20 Special Lugs - Red PDM_high-flow-cat-pipes It allows you to controlRays 42MM 12x1. 50 Formula FN II Lug Nut Set 20 Special Lugs Red