DIAMOND EYE K5252A CAT BACK EXHAUST SYSTEM FOR 07.5-12 DODGE RAM 2500/3500 6.7L CUMMINS 5 INCH SINGLEPASSEXIT ALUMINIZED

DIAMOND EYE K5252A is a 5.0" aluminized steel filter/DPF-back exhaust kit engineered for the 2007.5–2012 Ram 2500/3500 6.7L Cummins (all cab & bed lengths). Mandrel-bent tubing improves flow and helps lower EGTs with a clean single passenger-side outlet. Built to handle tow heat and daily use while maintaining emissions equipment.

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 and factory DPF, this kit is designed to fit all cab and bed lengths. Minor trimming may be required per the install sheet. Always verify model year split (2007.5+) before ordering.

FAQ: IS THIS CAT-BACK OR DPF-BACK?

Diamond Eye classifies K5252A as a DPF-back (filter-back) system for emissions-equipped trucks. Many retailers label it “cat-back,” but it installs downstream of the DPF on these models.

FAQ: DOES IT INCLUDE A MUFFLER?

Diamond Eye DPF-back kits generally do not include a muffler. You can add a 5" performance muffler or tip separately if desired.

Fitment Details

• Vehicle: 2007.5–2012 Ram 2500/3500, 6.7L Cummins
• Configuration: DPF-back, single passenger-side exit
• Cab/Bed: All cab & bed lengths
• Notes: Emissions equipment remains in place; check local laws for any exhaust modifications.

Cross Reference / Related Items

• K5252S — Diamond Eye 5" T409 stainless, DPF-back, single side exit (stainless counterpart)
• MBRP S61340AL — Comparable 5" aluminized DPF-back (listed for shopper comparison)
• Optional add-ons: 5" exhaust tip, 5" band clamps, 5" performance muffler

Specifications