⭕ D1 PROCHARGER WITH TWIN HI-FLO INTERCOOLERS FOR LT1 CAMARO Z28, FIREBIRD FORMULA & TRANS AM. COMES WITH D1 SUPERCHARGER HEAD UNIT WITH 12 RIB 3.70 PULLY, BELT TENSIONER, CRANK PULLY & SPACER, 12 RIB V BELT, K&N AIR FILTER, ALL PLUMBING, SURGE VALVE, TWIN INTERCOOLERS, OIL FEED & RETURN LINES (THIS IS NOT THE SELF CONTANED UNIT), AUTO METER 20PSI BOOST GAUGE WITH A-PILLER POD, INSTALLATION INSTRUCTIONS ON CD & (8) 65LB INJECTORS. THIS SUPERCHARGER SET UP WAS PURCHASED IN 2001 FOR AN LT1 FIREBIRD FORMULA PROJECT THAT NEVER GOT FINISHED IT HAS NEVER BEEN RACED ONLY TAKEN FOR A FEW TEST DRIVES. THE HEAD UNIT HAS A FEW SCUFFS ON THE SIDE FROM INSALATION. DOES NOT INCLUDE FMU (FUEL MANAGEMENT UNIT) AS THIS WAS SET UP TO BE RUN BY AFTER MARKET ECU ON A LOW COMPRESSION LT1. NOT FOR STOCK COMPRESSION LT1 ENGINES.