bl 18 with which coil

[07_ZX10 4]

I ran 2 bl 18's off 2 sundown 1500d's for little over 2 years with no problems at all. Those bl's had cooling, flatwind, daily options. Now they offer to have a 4" coil for extra $50. This time I will be running either an aq or sundown 3500 on 2 18's. With the 3500d should I go ahead and get the 4" coil, Im pretty sure the 3" would be fine since I ran the others with no problems that long. thanks for suggestions

[BanginGMC 23]

If it were me, I would get the 4"

[07_ZX10 4]

thanks, I may still get btl's instead this time. Will decide this week when i order, Im sure it will b a last minute decision