Big Sucker™ Stage 1 Air Filter Kit - Black Each breather is O-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary breather tubes, Breathing system eliminates oil issues associated...

Big Sucker™ Stage 1 Air Filter Kit - Black Each breather is O-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary breather tubes, Breathing system eliminates oil issues associated...

Big Sucker™ Stage 1 Air Filter Kit - Chrome Each breather is O-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary breather tubes, Breathing system eliminates oil issues associated...

Big Sucker™ Stage 1 Air Filter Kit - Chrome Each breather is O-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary breather tubes, Breathing system eliminates oil issues associated...

Big Sucker™ Stage 1 Air Filter Kit - Chrome Each breather is O-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary breather tubes, Breathing system eliminates oil issues associated...

Big Sucker™ Stage 1 Air Filter Kit - Chrome Each breather is O-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary breather tubes, Breathing system eliminates oil issues associated...

Big Sucker™ Stage 1 Air Filter Kit - Chrome Each breather is O-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary breather tubes, Breathing system eliminates oil issues associated...

Big Sucker™ Stage I Air Filter Kit - Black One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Black One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Black One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Black One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Black One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Black One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Black One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Black One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Black Each hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware, Radius...

Big Sucker™ Stage I Air Filter Kit - Black Each hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware, Radius...

Big Sucker™ Stage I Air Filter Kit - Black Each hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware, Radius...

Big Sucker™ Stage I Air Filter Kit - Brass One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Brass One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Brass One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Chrome One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Big Sucker™ Stage I Air Filter Kit - Chrome Each hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware, Radius...

Big Sucker™ Stage I Air Filter Kit - Chrome One-Piece aluminum backing plate with hidden breather technology, Each hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...