CXRacing 3.5 Inch OD Universal Aluminum Intercooler Intake Pipe 75 Degree 3.5" OD 75 Degree Aluminum Pipe with perfect thickness of balancing performance and durability Mandrel Bent Polished,3.0mm Thick 6061 Aluminum Alloy Tube, 24" Length. Great for intercooler tubing, turbo tubing, supercharger tubing, and exhaust tubing.