Firewall drilling?

[CupraMuscle]

Where is the best place to drill through the firewall when installing gauges? Help is most appreciated?

 

[Forbez]

There's already places to use, for the cabling.

Check top left handside of the engine bay, near the ECU, for a grommet you can use.

 

[Smoki333]

Or under coolant bottle

 

[CupraMuscle]

Cheers guys thats awesome. Saves a lot of hassle.

 

[Gogsie78]

i put mine through the grommit where the bonnet cable comes through. Go's nicely in around the a pillar area but whatever you find easier