When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
look for a local truck repair facility. i can look and find some of the ford PN's i have used in the past (powerstrokes use a 2.75 or 3" intake piping, and have bad ass silicone with wire coil couplers were about 20 bucks each, but that was with clamps if i recall.
basically, most trucks use silicone couplers due to the heat and boost (20-60 psi is the norm ) some use rubber...but most are silicone.