Perrin Wheel Spacers 15mm Black 5x114.3 WRX (2015-2018) STI (2005-2018) MINI Cooper Perrin's engineering research team has

Perrin's engineering research team has discovered that proper MAF sensor alignment and plumbing size are crucial to maintain proper air fuel ratios and prevent nasty check engine lights that can plague the competition

NOTE: This kit is street legal in all 50 US states

This added pressure prevents the opportunity for noise to occur

Increasing piping size effectively does this

allow for the power to go into rotating the tires

Perrin Wheel Spacers 15mm Black 5x114.3 WRX (2015-2018) STI (2005-2018) MINI Cooper Perrin's engineering research team hasPerrin wheel spacers for the Subaru feature a perfect fit hub centric design that makes the spacer function as a precise extension of the axle hub, thereby guaranteeing precision wheel fitment. Subaru Perrin Performance spacers are constructed from a proprietary aluminum magnesium alloy and manufactured by H&R in Germany. These Perrin Wheel Spacers are extraordinarily strong and lightweight and feature a hard anodized coating for surface durability.