Custom Heat Shield for SRI???

I want to buy the K&N typhoon. I've seen custom Injen Heatsheild...doesnt seem like it's very effective. I've seen custom heat shields for BMW's. Here's an example off a BMW.
----> http://forums.bimmerforums.com/forum/showthread.php?1043313-another-custom-heat-shield

Has anyone made something like this for a Celica?? tongue