Twisted Choppers Ground Pounder 2 Into 1 Exhaust Header For 1984-2017 Harley-Davidson Softail Dyna Touring

Twisted Choppers Ground Pounder 2 Into 1 Exhaust Header For 1984-2017 Harley-Davidson Softail Dyna Touring

Low, loud, and planted. The Ground Pounder channels both cylinders into a single aggressive collector that hugs the frame and anchors the look of any forward control build — delivering a raw, purposeful exhaust presence that earns its name every time you roll on the throttle.

Key Features

• 2-into-1 exhaust header configuration purpose-built for Harley-Davidson Big Twin platforms
• Designed for use with forward controls — will not clear mid-mounted foot controls
• Compatible with Evolution and Twin Cam engines, including custom motorcycle builds on those platforms
• Three finish options: Uncoated, Black, and Chrome
• Available with or without baffles — baffles are non-removable once installed
• 18mm oxygen sensor bungs on all applicable EFI year models
• 18mm to 12mm O2 sensor adapter bushings are included on applicable later-year models
• Includes lower mount with all necessary mounting hardware
• Made in the USA

Technical Specifications

• Configuration: 2-into-1
• Material: Mild steel
• Finish Options: Uncoated (raw mild steel — will rust without protective treatment), Black, Chrome
• Baffle Options: With Baffles or No Baffles — baffles are non-removable
• Foot Control Compatibility: Forward controls only — not compatible with mid-mounted foot controls
• O2 Sensor Bungs: 18mm — present on 2006+ Dyna FXD, 2007+ Softail FXS/FLS, and 2007+ Touring FLH/FLT models
• O2 Adapter Bushings: 18mm to 12mm — included on 2010+ Touring FLH/FLT and 2012+ Softail FXS/FLS models
• Engine Compatibility: Harley-Davidson Evolution, Twin Cam
• Hardware Included: Lower mount with hardware
• Not Included: Exhaust flanges, gaskets, O2 sensor wire extension harness
• Country of Origin: USA

Fitment Notes

• Forward Controls Only: This header will not clear mid-mounted foot controls. It is designed exclusively for forward control configurations.
• Dyna Dipstick: This header covers the oil dipstick on all Dyna models. The dipstick cannot be accessed with the pipes installed. Plan accordingly for oil level checks and changes.
• 2012–2017 Dyna: This header is not offered for 2012–2017 Dyna FXD models due to dipstick access constraints.
• Early EFI Models With O2 Sensors: If you own a 1996–2006 EFI Touring FLH/FLT, a 2001–2006 EFI Softail FXS/FLS, or a 2004–2005 EFI Dyna FXD, your bike has O2 sensors but the 1984–2006 Softail / 1999–2005 Dyna / 1999–2006 Touring variant does not include O2 sensor bungs. Select the 2007–2011 Softail / 2006–2011 Dyna / 2007–2009 Touring variant instead — the fitment is identical and that variant includes the 18mm O2 sensor bungs your bike requires.
• Will not fit 2017+ Milwaukee-Eight (M8) engines
• 2009 and later Touring FLH/FLT models require an O2 sensor wire extension harness — not included
• Flanges and gaskets are not included — reuse your existing flanges or purchase an exhaust flange kit with new gaskets and hardware separately
• May not clear all aftermarket air cleaner configurations — verify clearance before ordering
• Baffles are not removable once installed
• Black finish adds approximately 1 week to processing time; Chrome finish adds approximately 5 weeks
• Compatible with custom motorcycles equipped with an Evolution or Twin Cam engine
• Review the Fitment tab for a complete year-by-year and model-by-model breakdown