DIAMOND EYE 360012 DIESEL EXHAUST MUFFLER 28 INCH OVAL 3.5 INCH DUAL INLET/OUTLET STAINLESS EXHAUST MUFFLER PERFORMANCE PERFORATED

DIAMOND EYE 360012 is a 28" overall, straight-through, perforated-core oval muffler built from 409 stainless steel with 3.5" dual inlet / dual outlet. It’s designed for high-flow diesel exhaust with a controlled, deep tone and minimal backpressure—ideal for custom dual setups and universal retrofits where 3.5" tubing is used.

FAQ: WILL THIS FIT MY TRUCK?

This is a universal muffler with 3.5" dual inlet / dual outlet. If your system uses 3.5" dual pipes and has space for an oval case (approx. 22" body, 28" overall), it will fit. Always measure your available length, case clearance, and pipe layout before ordering.

FAQ: WHAT SOUND/INTERNAL DESIGN IS IT?

It’s a straight-through, perforated-tube design for strong flow and a deep, performance-oriented tone versus chambered/louvered styles.

FAQ: IS IT REALLY STAINLESS?

Yes—409 stainless steel construction for corrosion resistance and long service life in diesel heat cycles.

Fitment Details

• Type: Universal diesel muffler (fabrication/welding may be required)
• Inlet/Outlet: 3.5" dual in / dual out (offset/offset)
• Case: Oval, ~22" body length; 28" overall
• Best for: Custom dual 3.5" systems on heavy-duty diesel trucks and performance builds

Cross-Reference / Alternatives (Diamond Eye only)

• Diamond Eye 460031 — 4" center/center, 30" round stainless (perforated)
• Diamond Eye 470050 — 4" center/center, 27" round stainless (perforated)
• Diamond Eye 460002 — 4" center/center, 26" round aluminized (louvered)
• Diamond Eye 460005 — 4" center/center, 30" round aluminized (louvered)

Specifications