Kind of big wouldn't you say...
It's all down to personal choice really in regards to where you want to install it.
You can go lower down, below the ABS Pump etc. or up against the scuttle panel, make sure you have a sufficient amount of hose available.
In short, anywhere that you can find the space...
Just make sure that the overflow trails to a safe spot so if it does end up dumping oil it's not around any plugs or components that will affect the stability, handling or braking.
Share your thoughts with us on this.