SS Cat Back Exhaust 11- 15 Dodge Charger 5.7L

The Dynomax SS Cat Back Exhaust for 2011-2015 Dodge Charger 5.7L is engineered for enthusiasts seeking measurable power gains and refined acoustics without sacrificing daily-driver reliability. This cat-back system replaces the factory restrictive muffler and piping downstream of the catalytic converter, allowing compressed exhaust gases to flow more freely through mandrel-bent tubing. Purpose-built for the fifth-generation Charger's legendary 5.7L HEMI V8, this exhaust unlocks horsepower and torque that factory engineering deliberately constrained for emissions compliance and noise suppression.

Dynomax engineered this system with mandrel-bent stainless steel piping that maintains consistent diameter through every bend, eliminating the turbulence and backpressure created by the factory stamped-steel design. The efficient muffler core uses a straight-through chambered design rather than traditional baffle chambers, reducing restriction while the stainless construction resists corrosion and thermal cycling that weakens carbon-steel OEM components. A resonance chamber is tuned specifically for the HEMI's displacement and cam timing, producing a purposeful exhaust note that's substantially louder under load but not annoyingly droning during cruise. Typical bolt-on installation yields 15–25 horsepower and 20–30 lb-ft torque gains when paired with a tuner or ECU flash, with even modest power increases translating to noticeably sharper throttle response and engine feel.

This exhaust suits 2011-2015 Dodge Charger owners—street drivers, weekend warriors, and light-duty track enthusiasts—who want straightforward power without full engine rebuilding or supercharger expense. Installation requires no welding; the system bolts directly to the factory catalytic converter flange and rear hanger points using supplied hardware. Preacher coils and resonance chambers are positioned to clear factory undercarriage components, though lowered vehicles may require minor exhaust hangers adjustment. The stainless steel welds and mandrel bends justify the premium over budget alternatives, delivering longevity that matches the Charger's robust chassis and ensuring power gains remain consistent year after year.