That tube is made of silicone so it won't be affected by heat or pressure. Honestly, with the twists and turns, and the size changes, you're far better off going with silicone over aluminum. Even if it were possible to fab and fit with aluminum, the fab time would be more expensive than the hose. It looks like they are making that hose for that app. Most apps have rubber couplers at some point to fasten piping together, yours is just a bit longer. But for that app, its perfect. Its not like you'll miss that extra 2hp if there WAS a difference.