AIR FILTER KIT 00-05 KTM 4ST, TWINAIR 154212C POWERFLOW
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
Twin Air Powerflow Kit 154212C. This foam air filter features a dual-bonded foam design that removes microscopic dirt particles while allowing increased airflow compared to standard two-layer filters. The flat foam sealing ring ensures a secure seal to the airbox in all conditions. Twin Air filters are designed to be slightly smaller than stock, making installation easier and increasing dead air space around the filter for improved performance. This kit is used by factory race teams and leading riders globally.
- SKU
- 15-4212.C
- Brand
- Twin Air
- Availability
- In Stock (2)
Fitments (45)
| Make | Model | Year | Notes |
|---|---|---|---|
| KTM | 144 SX | 2007 | — |
| KTM | 144 SX | 2008 | — |
| KTM | 144 SX | 2009 | — |
| KTM | 150 SX | 2009 | — |
| KTM | 250 EXC-F | 2006 | — |
| KTM | 250 SX-F | 2006 | — |
| KTM | 400 LC-4 (3 holes) | 2001 | — |
| KTM | 400 LC-4 (3 holes) | 2002 | — |
| KTM | 400 LC-4 (3 holes) | 2003 | — |
| KTM | 400 LC-4 (3 holes) | 2004 | — |
| KTM | 450 EXC | 2003 | 1st Filter (Long) |
| KTM | 450 EXC | 2004 | 1st Filter (Long) |
| KTM | 450 EXC | 2005 | 1st Filter (Long) |
| KTM | 450 EXC | 2006 | 1st Filter (Long) |
| KTM | 450 EXC | 2007 | 1st Filter (Long) |
| KTM | 450 EXC/XC-F/XC-W | 2003 | — |
| KTM | 450 EXC/XC-F/XC-W | 2004 | — |
| KTM | 450 EXC/XC-F/XC-W | 2005 | — |
| KTM | 450 EXC/XC-F/XC-W | 2006 | — |
| KTM | 450 SX | 2003 | 1st Filter |
| KTM | 450 SX | 2004 | 1st Filter |
| KTM | 450 SX | 2005 | 1st Filter |
| KTM | 450 SX | 2006 | 1st Filter |
| KTM | 450 SXF | 2003 | 1st Filter (Long) |
| KTM | 450 SXF | 2004 | 1st Filter (Long) |
| KTM | 450 SXF | 2005 | 1st Filter (Long) |
| KTM | 450 SXF | 2006 | 1st Filter (Long) |
| KTM | 450 XC | 2003 | — |
| KTM | 450 XC | 2004 | — |
| KTM | 450 XC | 2005 | — |
| KTM | 450 XC | 2006 | — |
| KTM | 450 XC | 2007 | — |
| KTM | 520 LC-4 (3 holes) | 2001 | — |
| KTM | 520 LC-4 (3 holes) | 2002 | — |
| KTM | 525 LC-4 (3 holes) | 2003 | — |
| KTM | 525 LC-4 (3 holes) | 2004 | — |
| KTM | 525 LC-4 (3 holes) | 2005 | — |
| KTM | 525 LC-4 (3 holes) | 2006 | — |
| KTM | 530 EXC | 2006 | — |
| KTM | 530 EXC | 2007 | — |
| KTM | 560 SMR | 2006 | — |
| KTM | 560 SMR | 2007 | — |
| KTM | 560 SMR | 2008 | — |
| KTM | 560 SMR | 2009 | — |
| KTM | 560 SMR | 2010 | — |
- General Product Group
- Air Filters & Parts
- General Product Type
- Air Filter Kit
- Variant Id
- 219335
FULL DESCRIPTION
Twin Air Powerflow Air Filter Kit
Enhance your motorcycle's performance and protection with the Twin Air Powerflow Air Filter Kit. This high-quality air filter is designed to provide superior filtration and airflow, ensuring your engine receives clean air for optimal operation.
Key Features:
- Dual-Stage Foam Design: Effectively captures even microscopic dirt particles while allowing for increased airflow compared to standard filters. Tested on a flow bench for verified performance.
- Secure Seal: Features a flat foam sealing ring that creates a reliable seal to the airbox, even in challenging riding conditions.
- Optimized Fit and Performance: Twin Air filters are designed to be slightly smaller than stock, making installation easier and creating additional dead air space around the filter for improved performance.
- Factory Race Team Approved: The same dual-bonded foam technology is used by professional factory race teams and leading riders worldwide.
- Durable Construction: Built to withstand demanding off-road use.
This air filter kit is an essential upgrade for riders seeking to maintain engine health and maximize power output.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.