DIAMOND EYE K5252S FILTER BACK EXHAUST FOR 07.5-12 DODGE RAM 2500/3500 6.7L CUMMINS 5 INCH SINGLE PASSENGER SIDE EXIT STAINLESS

DIAMOND EYE K5252S is a 5.0" T409 stainless filter-back (DPF-back) exhaust system for the 2007.5–2012 Ram 2500/3500 6.7L Cummins (all cab & bed lengths). It replaces the post-DPF tubing and tip with free-flowing mandrel bends for lower backpressure and a clean single passenger-side exit—while retaining the factory emissions equipment. Built from corrosion-resistant T409 stainless for daily-driven durability. 

FAQ: WILL THIS FIT MY TRUCK?

Yes—if you have a 2007.5, 2008, 2009, 2010, 2011, or 2012 Ram 2500/3500 with the 6.7L Cummins, this K5252S kit fits all cab and bed configurations. It is designed specifically as a DPF-back system. 

FAQ: DOES THIS DELETE EMISSIONS EQUIPMENT?

No. This is a filter-back system that keeps the OEM DPF and after-treatment intact. It replaces the tubing and tail section after the DPF for improved flow and sound character. 

FAQ: WHAT MATERIAL IS IT?

T409 stainless steel (mandrel bent). T409 offers excellent heat and corrosion resistance for long service life in road-salt climates. 

Fitment Details

• Vehicle: 2007.5–2012 Ram 2500/3500, 6.7L Cummins (all cabs/beds)
• System Type: DPF/Filter-back (post-DPF)
• Tubing Diameter: 5.0"
• Exit: Single, passenger-side
• Material: T409 stainless steel

Cross-Reference / Alternatives

• Diamond Eye aluminized equivalent: K5252A (aluminized steel)
• MBRP 5" filter-back alternatives on CPP Diesel:
  • MBRP S61340PLM (5" aluminized, single side, no muffler)
  • MBRP S6130P (4" aluminized, single side)
  • MBRP S6130409 (4" T409 stainless, single side)

Specifications

Fitment & material per Diamond Eye; UPC and shipping data per distributor listings.