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[vant]

This is a simple modification that will increase the lateral support in the stock seat backs. Also, it's completely reversible. Thanks to meldog21 for telling me about this mod.

By the way, I'm 6' - 180 lbs. If you are a heavy guy, you probably won't want to do this mod.


Step 1: Move the seat forward and unzip the back. Use a pair of pliers to guide the slider, as the zipper does not have a pull tab. Separate the plastic rails at the bottom. Once that is complete, unfold the seat cover side, exposing the support foam.
Edit: Pay close attention to how the plastic rails on either side of the zipper (at the bottom) are assembled. You will need to re-assemble these later.




Step 2: Tuck the outside flap inside the structural support.




Step 3: Fold the cover back over the lateral support and repeat for the other side. Before you zip up the seat, you'll need to re-assemble the two "rails" that fasten the lower edges of the seat cover together. This is a pain, but it just takes a little patience and some muscle (see posts 16 & 18).

Use a pair of pliers to guide the slider, as the zipper does not have a pull tab.




Finished look: