[GrandSport]

I have a surge tank in two different FTs.
The "best" option is really dependent on your cage design or lack of. But you need to make a sheetmetal firewall. The issue is that the lines coming out of the OEM tank are RIGHT BEHIND the driver's seat.

You need to see if the lines can be outside of the firewall and in the driver's compartment. If yes, you can mount the surge tank in the trunk and even just build a little box around it in the corner (behind rear wheel well?). If not, you could probably mount it right behind the gas tank cover thing behind the driver seat and then build a box around that whole setup. But it might be easier to just drop a sheet metal wall down from where the hatch is.


We are using it for enduro, and have an aux tank. So we need both enclosed. We put it behind the driver rear tire well and then we made a firewall blocking off the entire trunk area.