Got the ECS turbo blanket as a birthday present and decided to wrap my downpipe to finish off the job. Jim's post really lays out all there is when it comes to the benefits of a blanket, but one thing I have noticed (more to do with the downpipe wrap to be fair) is a slightly firmer brake pedal. Was running the APR downpipe that passes near the ABS module, and while I haven't logged before and after temps of the module itself it stands to reason that in wrapping the downpipe less ambient heat is hitting it, keeping the brake fluid at a lower temp.
That or I'm crazy and it's all placebo.
Either way I wanted one to keep under-hood temps low. Planning on hitting the dragstrip hard once next season starts up, and I've had horrible experiences with heatsoak up at Sonoma before.