Hi chaps

Decided to exercise my Willy at Le Mans this year (24 & Classic) so want her in tip top condition - at least mechanically! Are these worth doing or would they lead to problems if they are uprated and described? Will I see a difference in running? is k-tec good stuff or a rip off?

http://www.k-tecracing.com/show_prod...d=2672&appid=1

http://www.k-tecracing.com/show_prod...id=189&appid=1

Cheers

Ben