right got a 4x4 saff running about 380 bhp and had a plug go down it was running champion q57c or something so put some genuine ford platinum ones in and it missis like fuck at high revs but only on high boost so some one plaese tell me a good plug to use

 

071's,,, there standard rs turbo plugs from ford,,, but they work great in cosworths including big power ones

 

do might try them cos i just pasd 50 odd pounds and the car runs like shit now