Cobb Stage 1 to NexGen Stage 2 + Flex Fuel Power Pkg Upgrade - Blue - 2019-2021 Subaru STI (Incl. 2018 Type RA) Subaru-STI-2018 Our rails are made from

Our rails are made from 6061 Billet Aluminum with a 5/8" ID for maximum fuel flow and threaded for -8 O-Ring boss fittings (not included)

Perfect Fitment – Guaranteed

Great exterior upgrade that provides a cleaner carbon fiber aesthetic

This clutch combines twice the organic friction surfaces with a no-nonsense rigid Mono-Drive hub in a completely modular design

Cobb Stage 1 to NexGen Stage 2 + Flex Fuel Power Pkg Upgrade - Blue - 2019-2021 Subaru STI (Incl. 2018 Type RA) Subaru-STI-2018 Our rails are made fromThe Starting Point That's Already Fast The Cobb Stage 1 Power Package for the Subaru is the cleanest entry point into serious Subaru performance an Accessport V3 paired with a high flow intake filter that, together, give the Subaru's ECU everything it needs to start working properly. The OTS (Off The Shelf) tune unlocks power that the factory calibration leaves on the table, and the intake filter feeds the turbocharger with less restriction. This is