Seibon OEM-Style CF Hood Scoop Subaru WRX / STI 2008-2014 | HDS0809SBIMP-OE g37" RaceComp Engineering Yellow spring rates

RaceComp Engineering Yellow spring rates are an aggressive 365 lbs/in front and 360 lbs/in rear that match the new OEM valving on the 2015 STI

They're beefy

95A durometer polyurethane

That's where the 3x thicker TMIC BOV gasket's extra thickness comes in handy

P2 =100 N/mm (572 lbs/in)

Seibon OEM-Style CF Hood Scoop Subaru WRX / STI 2008-2014 | HDS0809SBIMP-OE g37" RaceComp Engineering Yellow spring ratesPart #: HDS0809SBIMP OE If this product is listed as sold out, a pre order typically takes about 8 12 weeks for build time. THIS BOX IS YELLOW FOR A REASON! READ IT! Due to the size of most Seibon products they must be shipped via Pilot Freight Services. It takes approx 1. 5 2 weeks for Seibon to pack an in stock shipment. All shipments must be inspected prior to accepting the delivery, and in the rare case that they were damaged during transit, we