EHPRO KFL+ V2 airholes

[ahwest]

has anyone done boring out the EHPRO KFL+ V2 airholes? the reason why i'm asking is because the edge of the stock holes are already very close to the edge of the plastic tank... how do you go about drilling them bigger? I would like to bore them out and getting bored out center pin for more airy draw.

Thanks!

 

[0S1R1S]

Drilling the outer hole won't make that much of a difference. It will still create a bottleneck in the center pin hole. You need to drill that out to see any more air flow.

 

[massbass22]

I didn't bore mine out but a vertical coil increased the airflow quite a bit on mine.

 

[ahwest]

I plan to either bore out the center post or buy the already bored out center post from kayfunmod... but to maximize the efficiency, i think the side airholes need to be bigger as well, but I'm not sure how to go about it because the holes are so close to the edge already....

I will try a vertical coil next!