aFe Quantum Pro 5R Cold Air Intake System 11-16 Ford Powerstroke V8-6.7L - Oiled 1986-gmc-k1500-high-sierra-esi2496152 On these vehicles they were

On these vehicles they were mounted behind the rear axle and were parallel to the axle

Mounting: 3/8" Hole

The serrated/helix design creates air turbulence in the intake manifold

and tow hooks

The turbocharger is equipped with a 58 or 67mm inducer and a 76 or 84mm exducer for reduced turbo lag and maximum performance and power

aFe Quantum Pro 5R Cold Air Intake System 11-16 Ford Powerstroke V8-6.7L - Oiled 1986-gmc-k1500-high-sierra-esi2496152 On these vehicles they wereQuantum Cold Air Intake Systems (Patent Pending) by aFe POWER are the latest in airflow technology for your Ford Power Stroke 6. 7L (td) truck. From the uniquely integrated Filter to Housing design to the state of the art, lightweight injection molded base and top Pro 5R filter, Quantum delivers dyno proven performance gains, convenience, value and installs in minutes. Filter Base Has Built In 3 Angle Velocity Stack For Even Airflow CAD Designed XLPE