Heat shield for CV boot

As the left rear Forester CV boot has a shorter life due to the proximity of the exhaust pipe, I'm installing a proper heat shield on the pipe, just under the boot, so I don't have to pay someone to replace the boot earlier than necessary. The heat shield can be had at most hot rod sites or at

J.C.Whitney:

http://www.jcwhitney.com/webapp/wcs/stores/servlet/Product?showCustom=0&Pr=p_Product.CATENTRY_ID%3A2006315&catalogId=10101&Nty=1&productId=2006315&Ntx=mode+matchallpartial&Ntt=heat+shield&Ntt=heat+shield&tmplframe=EndecaControllerView&langId=-1&storeId=10101&Ntk=AllTextSearchGroup

The part # is ZX501643N

Bill