Flatout Suspension GR40-PRO Coilovers - 2015-2021 Subaru STI PDM_antennas

Flatout Suspension GR40-PRO Coilovers - 2015-2021 Subaru STI PDM_antennasFlat Out Suspension GR40 PRO Coilovers 2015 2021 Subaru STI The Flatout Suspension GR40 PRO represents the top tier of rally proven coilover systems, engineered specifically for professional rally, rallycross, and competitive motorsport applications. Built for drivers who demand uncompromising strength, adjustability, and control, the GR40 PRO provides championship level performance in the most extreme conditions. Unlike entry level kits, it features

then look no further than Seibon’s C-Style Carbon Fiber Trunk Lid

just make sure your flywheel is in good working order before the installation

It is 100% rock solid and incredibly strong so it can handle what ever you throw at it

The PERRIN Master Cylinder Brace for the 2015-2021 Subaru WRX and STI are CNC machined from a large piece of 6061-T6 billet aluminum for extreme stiffness

Improves the joint rigidity of the cylinder head with the cylinder block

LW = Light Weight

Many new features are responsible for these positive attributes

This is highly restrictive and leaves for a ton of room for improvement

The N1 connects at the OEM downpipe flange and runs to the factory tip exit locations on the VA WRX/STI using the factory hanger positions

Billet aluminum lower piece construction

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and are in-use by dozens of rally and endurance racing teams for nighttime stages and laps