And now the test. All heat shielding was sourced from Agriemach. I had plenty in stock this time so no expense for once.
The exhaust is large diameter and close to the wing stay and mudflap.
First job was to measure up, do some cutting and fabricate a heat shield. This was a lot of faffing, but the bare skeleton looked like this - something from Wallace & Gromit in fact.
Thank goodmess for pop rivets!



Next job was to apply a layer of insulating weave to the rear, and secure with Reflect-a-Cool:
Not obvious in the photos, but the aluminium heat shield is also covered in reflective weave.


Once trial fitted again, I could fit and trim the neoprene flap:
Front:

Rear:

Here are some fitted shots:



I've used a similar set up on the Roadster (both sides) for four years without a problem, so I'm confident that this will be OK.
Whether you go for flaps or wingliners, it's a job worth doing because the wings take a beating. You'll recall the lower edges of my rear wings were down to bare alloy and that's after 12,000 miles of normal use.