M113 Shorty Headers – Mercedes E500 CLS500 NA V8

M113 Naturally Aspirated • Retains Factory Cats

M113 Shorty Headers for Mercedes E500 & CLS500

Improved throttle response, stronger mid-range torque and better exhaust flow — while retaining the factory catalytic converters and OEM-style O2 sensor placement.

Driving an E55 or CLS55? These are for the naturally aspirated M113 5.0L V8. The supercharged M113K 5.4L takes a different header — see the M113K shorty log-style headers instead.

Emissions tier: cat-compatible

This header bolts to the factory catalytic converters and retains OEM-position oxygen sensors. No emissions equipment is removed or bypassed. We do not currently list a CARB Executive Order (EO) number for this part — California-registered vehicles require a CARB EO for aftermarket headers, so confirm your local requirements before ordering. Outside California, check your state’s inspection rules.

These M113 shorty headers improve exhaust scavenging and reduce restriction, delivering noticeably sharper throttle response and a stronger mid-range pull without compromising drivability or removing the factory catalytic converters.

Ideal for daily-driven E500 and CLS500 models looking for a refined, OEM-plus performance upgrade.

Performance Benefits

Vehicle Compatibility

• 2003–2006 Mercedes-Benz E500 (W211) — M113 5.0L naturally aspirated V8
• 2005–2006 Mercedes-Benz CLS500 (W219) — M113 5.0L naturally aspirated V8

Fitment is chassis-specific. Send us your VIN and we’ll confirm before you order.

Installation Notes

• Direct bolt-on for W211 / W219 M113 applications
• Interfaces with factory mid-pipes and catalytic converters
• No cutting or welding required
• Professional installation recommended