SLP Air-Box Lid, 2000-02 V8 Camaro/Firebird Gain up to 12 horsepower with an SLP high-flow air-box lid. This bolt-on unit eliminates the restrictive stock baffles and resonator assembly, significantly improving air flow to the throttle body. Use our high-performance air filter (Part #25012B) for up to 5 additional horsepower. NEW! All lids are now hot-stamped with a contrasting white SLP logo.