Anyone know of a site that you can buy a sheild for my airfilter (57i)

 

http://www.takakaira.com/ do 'em for the ApexI, can't imagine the 57i and the ApexI would be so different in overall dims. - v pricey though

 

Always tend to find that when vehicle is moving,the heat off the turbo is pushed away from the air filter. Can also find by fitting such, it can restrict air flow down side of the engine and around the turbo, creating more heat dispersion problems.