I've went to one of the sport shop here and the owner says dat i should try the GREDDY Racing Plugs for the 7... and dat i should use 10's all arnd... Q: How good are they compare to the stock NGK plugs?? Is it much cooler?? I've read a site where they tested these plugs but i forgot the address, does any1 know?? tanx in advance...

 

have any1 used them b4?? any info would be very greatfull...