Built like tanks with thick flanges and heavy-gauge stainless steel pipe, the tuned Coyote short-tube Tri-Y headers show just how much complexity and cost it takes to prevail with a high-rpm, naturally aspirated engine. The short primary pipe on cylinder No. 8 purposely mates with No. 7's primary at almost 90 degrees because it is physically stronger at high temperatures that way. Routing No. 8 almost parallel to No. 7 would eventually see the pipes cracking and pulling out of the collector.