Adjustable race Headers
allow you to change your header primary tube lengths, collector lengths and diameters and collector types (Classic 4 into 1, Merged and Split–Flow). By altering the relationship between the primary length and collector diameter and length it is possible to increase or decrease the torque and horsepower output at any specific R.P.M. level. For a slick track the header primaries or Collectors
can be shortened to decrease the low end torque for better traction. Larger diameter Collectors
will also reduce low end torque. On a good track with lots of bite, extending the primaries or Collectors
will pick up bottom end power for a harder launch and awesome e.t.'s. Smaller collector diameters will also increase low end torque. Hooker
have taken more Pro Stock drivers to the championship than any other brand.
Adjustable Race Tube Size 2.25" x 24" – 30", Collector Size 4", Collector Length 12", Port Shape: Same as Port, Black High Temp Paint
Breaking in an engine with ceramic coated Headers
WILL result in damage to the coating and will VOID all warranties. Ceramic coated Headers
require several heat cycles to fully cure before they will withstand extreme heat. Hooker
recommends using cast iron exhaust manifolds
or old Headers
to break in new engines to avoid coating damage. Please call Hooker
tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Hooker
does not recommend the use of header wraps as this will void the warranty.