You can just remove the throttle body and reach in there with paper towel and rags. You might want to use a syringe or a brake vacuum tool to collect the majority of it first. That is what I used on my 2011 GS. I then installed a catch can (2 of them actually). The second one has never got a...
Sorry for the slow response but if you are still interested in the paddle shifter mods that I made, contact me at my email of..... [email protected]
I would be happy to provide you with the details..... Ken
I swapped 2 wires in the right hand paddle shifter connection and then purchased and installed up-grade paddle shifter adapters that now has down-shift on the left and up-shift on the right.