hmmm said:My car is running 1 BAR boost (298 bhp) and is using PR7B spark plugs. (This was all set up by Powerstation). Should I change these to the heat range 8 plugs or are these ok?
Thanks.
wi? :?kevgti-r said:i think olly is using them @ 1.3 but with wi and i dont think hes had any prob with them 8)