I used a 6 inch long or so piece of 4 inch exhaust pipe, a heavy 5 inch bolt clamp (both from NAPA) and a Fleetguard AH1141 filter from International truck dealer - they order it in for me. I used the original black hose that attached to the factory air box and the clamp that held it on. The filter lays on the inner fender between the battery and the brake master cylinder, the intake air temp sensor I wire tied to one of the fender braces (you can see it just to the right of the air filter, black sensor held on with a white zip tie). No problems since August of 2001 120,000 or so miles as of May 2008. If I had it to do again I would buy the TYMAR from Dale Isley at Tymar Performance, more professional installation.