01-04 Duramax LB7 Black Market Performance High Flow 3.5" Turbo Horn

01-04 LB7 Duramax LB7 Black Market Performance 3.5" Turbo Intake Horn

Increase airflow by eliminating the restrictive factory turbo air intake inlet horn. A must when adding an aftermarket air intake system. Up to 20 HP Gain, Lower EGT's, Faster Spool Up, More Turbo Whistle