Brian Crower 6mm Intake Valve Guides - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI) PDM_seat-mounting

Brian Crower 6mm Intake Valve Guides - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI) PDM_seat-mountingHere, you are looking at the Brian Crower 6mm Intake Valve Guides. These are made using durable materials and are ideal for those of you rebuilding your head and want premium materials to sustain larger power gains, and where the engine will live at higher RPMs. Brian Crower 6mm Intake Valve Guides SPECS: Made from manganese silicon aluminum bronze alloy materials CNC machined to exacting tolerances 6mm in size Resistant to cracking and corrosion

making this both a visual and performance upgrade over the entry-level options

knowing it's protected and supported for years to come

protect your vehicle from the risks of overheating

This is a high-performance replacement for your factory intake system

we repeated wind tunnel experiments to verify the performance and try to balance design and performance

Black Oxide

This Stage 2 cold air intake system produces 14 max horsepower

Billet 6061 aluminum housing

Designed to compress valve springs with the head on the bench or on the engine in the car

the BILSTEIN B8 Sport Series is up to the task

to allow you to utilize all of your power

Performance - Pro 5R provides your engine with the largest amount of high-flowing