K&N is about to release a new cold air induction filter kit for the CTD. Kit includes new intake pipe with silicone connection,heat shield that has a seal to go agianst the underside of the hood and filter with 1 1/4" pleats . Looks like a well made product. Got the information at the Performance Racing Industry show in Indy from the guy that did the developement on this application. Release date to be late Dec. early Jan. Watch thier web site .