Since I am not planning to do any mod's to the engine, is it worth buying headers for the car then? will it make any noticeable differences to MPG or performance?
Hahahahaha once you feel the power from adding the supercharger you'll want to do more mods, it's a disease and the only cure is to spend more money on parts lol!
No more GP 04 Impala SS Indy:
Gen V 3.4”|FWI|N* TB lq4 MAF|1.9 Modded Rockers|F&R Plogs|ZZP 3" Catted DP|ZZP 2.5" Catback|