Skip to product information
CTS Turbo Replacement Intake Air Filter 4"
$49.99
CTS Turbo's 4-inch replacement air filter is a tapered cone filter built to fit in tight spots, originally developed for CTS Turbo's MK4 and MK5 R32 big turbo kits and equally usable in custom big turbo builds calling for a 4-inch inlet.
Features
- Reusable, high-flow filter media
- Molded silicone base and cap
- Stainless steel clamp
- Tapered design for tight-clearance installs
What's Included
- CTS Turbo 4-inch replacement air filter
- Stainless steel clamp
Need a Different Size?
2.75" Replacement Intake Air Filter, 3" Replacement Intake Air Filter, and 3.5" Air Filter for CTS-IT-270/270R/290/300/180.
Product Specifications
| Fitment | Universal 4-inch inlet; used in CTS Turbo's MK4 and MK5 R32 big turbo kits |
| Dimensions | 4.0" inlet x 8.75" long x 6.0" wide |
| SKU | C00N CTS-AF-400 |
| MPN | CTS-AF-400 |
Frequently Asked Questions
Is this filter reusable?
Yes, it is a reusable, high-flow filter.
Will this fit my custom intake?
It fits any 4-inch inlet, including custom big turbo applications, not just CTS Turbo's own kits.
Not sure which filter size you need?
Contact your BMP Tuning rep and we will help you confirm fitment before you order.
Fitment
- E92 335i 3.0T I6 [N54]