The Diamond Eye K4306A is a 4 inch aluminized turbo-back exhaust for 1994-1997 Ford F-250 and F-350 trucks with the 7.3L Powerstroke. It replaces the restrictive factory system from the turbo to the tailpipe and keeps a muffler for a quieter cab.

The kit starts with a 3 inch two-piece downpipe, bolts to your factory catalytic converter and then runs 4 inch tubing back through the muffler. It fits all cab and bed lengths and is covered by CARB Executive Order D-778.

• 4 Inch Aluminized Tubing: Larger, mandrel-bent pipe for better flow and lower EGTs.
• Muffler Included: Keeps the sound in check for daily driving and towing.
• 3 Inch Two-Piece Downpipe: Fits past the firewall in the tight OBS engine bay.
• Reuses the Factory Cat: Bolts to the stock catalytic converter.
• CARB EO D-778: Covered for the listed 1994-1997 F-250/F-350 7.3L trucks.

Technical Specifications

• Part Number: K4306A
• Manufacturer: Diamond Eye Performance
• Tubing: 4 inch aluminized steel, 3 inch downpipe
• Type: Turbo-back single exit with muffler
• CARB EO: D-778
• Core Requirement: No core required

Vehicle Fitment & Technical Installation Notes

• Fitment: 1994-1997 Ford F-250/F-350 with the 7.3L Powerstroke, all cab and bed lengths. Reuses the factory catalytic converter.
• Installation Tip: The firewall pinch seam near the bell housing has to be bent away for the 3 inch downpipe. Hang the system loosely and do not tighten any clamps until everything is aligned.