MXP Comp RS Exhaust System 2013+ FRS/BRZ/86 Hybrid Racing The gears are manufactured from

The gears are manufactured from Chromoly which is known for its improved hardness and strength

You will need this kit to adapt the standard COBB Fuel Rails and Fuel Line Kits with the COBB Flex Fuel Ethanol Sensor Kit

For STI owners that are currently using a GrimmSpeed TMIC

but the overall fit and performance is approximately the same

MXP Comp RS Exhaust System 2013+ FRS/BRZ/86 Hybrid Racing The gears are manufactured fromThe Comp RS Exhaust System line from MXP introduces a more aggressive sounding system at a lower price. It's the perfect exhaust for those seeking outright performance without the premium cost of other systems. Even though it is a value minded system, the Comp RS Exhaust System line still features many of the same advantages as the SP Spec Exhaust System line.