Aftermarket oil cooler banjo

[rerb]

Hi, since my stock cooler is worn pretty bad, and the stock lines are very close to touching the exhaust, I decided to upgrade. I got a m16 x 1.5 banjo, but the bolt has 2 cross drilled holes which is rather small. Should I drill some more? the stock one has 4 much larger ones. Thanks.

[Gixer1460]

As long as the area of the 'cross drilled' holes is greater than the bore up the center it won't make any difference how many holes are in it!