well spectra bhai 6 mnths bck i had an efi tuning frm an efi tuner in f8 the car wz back in power pick aur cng were excelent but a few dayz bck i had a manual tuning frm a local mecanik now my car z missing too much, slow pa band ho jati hai dunno wht to do if ur thinking to chnge da coils i chnhd them 6 mnths ago plz help me....