BBK Power-Plus Corvette Cold Air Intake Systems 1726
This cold air intake system for the Corvette can be installed in just minutes and is good for approximately 10-15 horsepower and works excellent with other power adders such as performance exhaust and performance throttle body. Raise hood and disconnect (-) neg battery terminal. Disconnect all electrical connections to the mass-air sensor and air inlet duct.Remove breather hose from air box and remove 90-degree tube for later use.Remove small vacuum nipple from accordion duct between air duct and throttle body.(Some models do not have this item.)
- Loosen hose clamps at the throttle body, mass-air
- sensor and airbox and remove the mass-air sensor
- and air duct from vehicle.
The air duct is held to the radiator support with 2 grommets - just tug firmly upward to release from the grommets.Remove air filter box assembly from the vehicle, attachment to the chassis is the same as the air duct. Install 90-degree breather tube (from stock airbox) into the new air filter and loosely clamp the filter to the mass-air sensor.
Swap the air temp sensor and grommet from stock air duct to the BBK duct then loosely clamp the 3 1/2 I.D. blue hose to the mass-air sensor and the BBK air duct. Loosely clamp the 4" I.D. blue hose to the air duct and install complete assembly into the vehicle attaching to the throttle body and the two grommets on the radiator support. Align the hoses, clamps etc., before tightening the hose clamps. Reattach wiring to mass-air sensor, air temp. sensor and connect breather tube at the air filter. If equipped with small vacuum fitting between air duct and throttle body simply drill through the blue hose in the gap between the duct and the throttle body using a 1/8" drill bit and press fitting into opening. Reattach neg. (-) battery terminal, start vehicle and let idle to full operating temp. Recheck to ensure everything is tight and secure.
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