Add up 21% more horsepower when installing the Ness Big Sucker™ Air Filter kit. These high performance air filter kits feature am exposed filter with a billet or steel outer cover for great style and performance. Available with a standard red air filter or our SS Stainless steel jacketed air filter.

Features:

• Fits 2000-up Twin Cam (excludes 99-01/08-10 FLT)
• Standard filter

Add up 21% more horsepower when installing the Ness Big Sucker™ Air Filter kit. These high performance air filter kits feature am exposed filter with a billet or steel outer cover for great style and performance. Available with a standard red air filter or our SS Stainless steel jacketed air filter.

Features:

• Fits 1988-12 XL
• Standard filter

Add up 21% more horsepower when installing the Ness Big Sucker™ Air Filter kit. These high performance air filter kits feature am exposed filter with a billet or steel outer cover for great style and performance. Available with a standard red air filter or our SS Stainless steel jacketed air filter.

Features:

• Fits 1988-12 XL
• Standard filter, Plain backing plate

These high performance air filter kits feature a 20% larger filter than our Stage 1 kits. Stage 2 kits require a Stage 2 outer cover for 2000-up Big Twin applications and all Sportster™ applications. The factory cover can be used on 1993-1999 Big Twin applications.

Features:

• Fits 1993-99 EVO
• Features Plain, chrome or black backing plate
• Features standard red or stainless filter

Add up 21% more horsepower when installing the Ness Big Sucker™ Air Filter kit. These high performance air filter kits feature am exposed filter with a billet or steel outer cover for great style and performance. Available with a standard red air filter or our SS Stainless steel jacketed air filter.

Features:

• Fits 1993-99 EVO
• Standard filter

These high performance air filter kits feature a 20% larger filter than our Stage 1 kits. Stage 2 kits require a Stage 2 outer cover for 2000-up Big Twin applications and all Sportster™ applications. The factory cover can be used on 1993-1999 Big Twin applications.

Features:

• Fits 1999-01 FI FLT
• Features Plain backing plate

Add up 21% more horsepower when installing the Ness Big Sucker™ Air Filter kit. These high performance air filter kits feature am exposed filter with a billet or steel outer cover for great style and performance. Available with a standard red air filter or our SS Stainless steel jacketed air filter.

Features:

• Fits 1999-01 FI FLT
• Standard filter

These high performance air filter kits feature a 20% larger filter than our Stage 1 kits. Stage 2 kits require a Stage 2 outer cover for 2000-up Big Twin applications and all Sportster™ applications. The factory cover can be used on 1993-1999 Big Twin applications.

Features:

• Fits 2000-up Twin Cam (except 99-01 FI FLT & 08-11 FLT)
• Features Chrome, Black or Plain backing plate

Add up 21% more horsepower when installing the Ness Big Sucker™ Air Filter kit. These high performance air filter kits feature am exposed filter with a billet or steel outer cover for great style and performance. Available with a standard red air filter or our SS Stainless steel jacketed air filter.

Features:

• Fits 2008-12 FLT
• Standard filter

These high performance air filter kits feature a 20% larger filter than our Stage 1 kits. Stage 2 kits require a Stage 2 outer cover for 2000-up Big Twin applications and all Sportster™ applications. The factory cover can be used on 1993-1999 Big Twin applications.

Features:

• Fits 2008-up FLT
• Features Plain backing plate

These high performance air filter kits feature a 20% larger filter than our Stage 1 kits. Stage 2 kits require a Stage 2 outer cover for 2000-up Big Twin applications and all Sportster™ applications. The factory cover can be used on 1993-1999 Big Twin applications.

Features:

• Fits 58mm 2008-12 FLT
• Features Plain backing plate

The Big Sucker™ is the best selling and most powerful air cleaner kit on the market! it's designed to give your engine maximum airflow, which means more horsepower, more torque, and improved performance for a sweet ride.

Features:

• Your choice of a standard red air filter or our SS stainless steel jacketed air filter.
• Fits 2000-11 Harley-Davidson® TwinCam (Ex. 99-01 FI FLT and 08-11 FLT).
• Optional pre-filter (rain sock) is available separately.
• All kits include hardware and simple instructions for easy installment.

Add up 21% more horsepower when installing the Ness Big Sucker™ Air Filter kit. These high performance air filter kits feature am exposed filter with a billet or steel outer cover for great style and performance. Available with a standard red air filter or our SS Stainless steel jacketed air filter.

Features:

• Fits 1999-up Twin Cam (excludes 99-01 FI FLT & 08-11 FLT)
• Stainless steel filter

These high performance air filter kits feature a 20% larger filter than our Stage 1 kits. Stage 2 kits require a Stage 2 outer cover for 2000-up Big Twin applications and all Sportster™ applications. The factory cover can be used on 1993-1999 Big Twin applications.

Features:

• Fits 2000-up Twin Cam (except 99-01 FI FLT & 08-11 FLT)
• Features Black backing plate and Stainless steel filter

These high performance air filter kits feature a 20% larger filter than our Stage 1 kits. Stage 2 kits require a Stage 2 outer cover for 2000-up Big Twin applications and all Sportster™ applications. The factory cover can be used on 1993-1999 Big Twin applications.

Features:

• Fits 2000-up Twin Cam (except 99-01 FI FLT & 08-11 FLT)
• Features Chrome backing plate and Stainless steel filter