br9ecs-5 ??

[EricMichael]

I think i read on here last year that alot of ppl with piped vipers run br9ecs for detonation reasons. Anyone know what the diffrence is between br9ecs and br9ecs-5 and if i should even run them?

 

[jr_amsoil]

5 is a hair hotter

 

[Brad]

The dash 5's are pre gapped for skidoo @ 19 thou