Diamond Eye DWNP 4in AL: 89-93 5.9L DODGE MACHINED EF spo-disabled All the factory couplers are

All the factory couplers are replaced with quality 4-ply silicon pieces which can endure 50 + psi of boost

They deliver a noticeable change in tone and increase in overall volume without being intrusive

1985-1992 Ford F-250 XLT Lariat 1997 Ford F-250 HD XL 1997 Ford F-250 HD XLT 1983-1986

2008-2009 Porsche 911 GT2 2007-2008

Diamond Eye DWNP 4in AL: 89-93 5.9L DODGE MACHINED EF spo-disabled All the factory couplers areDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace. Mandrel bending and fabrication parameters are extensive, and a variety of tooling allows us to offer tube processing from 3 8" to 5"OD in both