Big Sucker® Stage 1 performance intake adds new features to the original industry leading air cleaner. The new patented hidden breather system is o-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary shooter tubes
- Knukle stage 1 Air Cleaner Cover
- Increases Horsepower and Torque
- Patented Hidden Breather Technology
- Pre-Oiled and Synthetic High Performance Filters
- One-Piece Aluminum Backing Plate
- Radius Air Inlet for Unobstructed Airflow
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2010-2022 | Harley-Davidson | Forty Eight XL1200X | |
| 2018-2019 | Harley-Davidson | Forty Eight XL1200XS Special | |
| 2018-2021 | Harley-Davidson | Iron 1200 XL1200NS | |
| 2009-2022 | Harley-Davidson | Iron 883 XL883N | |
| 2016-2020 | Harley-Davidson | Roadster XL1200CX | |
| 2012-2016 | Harley-Davidson | Seventy Two XL1200V | |
| 2007 | Harley-Davidson | Sportster 1200 50th Anniversary XL50 | |
| 2002-2019 | Harley-Davidson | Sportster 1200 Custom XL1200C | |
| 1996-2001 | Harley-Davidson | Sportster 1200 Custom XLH1200C | |
| 2006-2011 | Harley-Davidson | Sportster 1200 Low XL1200L | |
| 2007-2012 | Harley-Davidson | Sportster 1200 Nightster XL1200N | |
| 2004-2008 | Harley-Davidson | Sportster 1200 Roadster XL1200R | |
| 2002-2003 | Harley-Davidson | Sportster 1200 Sport XL1200S | |
| 1996-2001 | Harley-Davidson | Sportster 1200 Sport XLH1200S | |
| 2014-2017 | Harley-Davidson | Sportster 1200 Super Low XL1200T | |
| 1988-2003 | Harley-Davidson | Sportster 1200 XLH1200 | |
| 2002-2009 | Harley-Davidson | Sportster 883 Custom XL883C | |
| 1999-2001 | Harley-Davidson | Sportster 883 Custom XLH883C | |
| 1988-1995 | Harley-Davidson | Sportster 883 Deluxe XLH883 | |
| 1988-2003 | Harley-Davidson | Sportster 883 Hugger XLH883 | |
| 2005-2010 | Harley-Davidson | Sportster 883 Low XL883L | |
| 2002-2003 | Harley-Davidson | Sportster 883 Roadster XL883R | |
| 2005-2007 | Harley-Davidson | Sportster 883 Roadster XL883R | |
| 2011-2019 | Harley-Davidson | Sportster 883 Super Low XL883L | |
| 2004-2008 | Harley-Davidson | Sportster 883 XL883 | |
| 1988-2003 | Harley-Davidson | Sportster 883 XLH883 | |