Diamond Eye Performance

Mandrel-Bent Diesel Exhaust, Built in Oregon

Diamond Eye Performance

Diamond Eye Manufacturing builds diesel performance exhaust on a 23-acre complex in eastern Oregon, using over 60,000 square feet for manufacturing. The plant runs several CNC mandrel bending machines and tooling that processes tube from 3/8in to 5in outside diameter in both aluminized and stainless steel, so the kits are bent in-house rather than assembled from bought-in bends. A separate warehouse distribution center holds the inventory, and an on-site research and development center with its own testing equipment supports the engineering work.

23-Acre Complex in Eastern Oregon3/8in to 5in OD Mandrel BendingIn-House Research & Development Center
What We Carry from Diamond Eye Performance
Turbo-back, cat-back and DPF-back diesel exhaust kits in 4in and 5in, single and dual
Downpipes and turbo-direct pipes, including HX40 turbo-direct flange versions
First- and second-section tail pipes, intermediate connecting pipes and resonators
OEM muffler replacement pipes and straight-through performance mufflers
Bolt-on rolled-angle exhaust tips with the embossed Diamond Eye logo
Torca band clamps, lap-joint clamps and HX40 V-band clamps in aluminized and stainless
Smoke stack elbows and extension pipes in 45-degree and 90-degree, 4in and 5in
22 of the 83 Diamond Eye parts we carry are universal-fit — clamps, tips, mufflers, muffler replacement pipes, smoke stack elbows and tubing that you select by diameter and length rather than by vehicle. Those parts will not appear in the Part Finder; browse this collection directly and match the dimensions in the product description. The vehicle-specific kits cover Ford 7.3L, 6.0L and 6.7L Powerstroke, Dodge and Ram 5.9L and 6.7L Cummins, Chevrolet and GMC 6.6L Duramax, and the gas Nissan Titan 5.6L.

83 products