OEM part # GRMS-8M-L30 MazdaSpeed Cold Air Intake with heat shield and K&N Filter. Add some HP to your 2.3 Mazda with a genuine Cold Air Intake. A Cold Air intake system relocates the filter outside of the engine compartment to deliver the coolest air inlet temperatures possible. Cooler air carries more oxygen, which translates into a more intense explosion in the combustion chamber to create more horesepower and torque. Removed from a 2008 Mazda 3 GT before selling the car with the original system re-installed. Compare to new at $300-350 US Taking up space in my garage so $100 Call/email or text