BOSCH Super 4

[Darren]

Can someone please tell me the correct plug for the 155 HGT. No end of searching via google has places saying either FR78X or FR56.
Which one is right?

 

[donny lad]

get denso's mate they are worth every penny ive got some on my hgt and they are brill, really do improve throttle responseand they last longer aswell.

http://www.larkspeed.com/index.pl?a=i&p=210IK202F