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Pro DRY S replacement with the correct engine and housing
The aFe 31-80168 replaces the original airbox filter in the specified applications with oil-free synthetic media. The current exact manufacturer identifies BMW M5 / M6 2006–2010 S85 5.0L V10 and explicitly describes a PAIR of oil-free filters with two layers of progressively finer synthetic media. Exact Turner detail identifies E60 M5 and E63/E64 M6 original housings; the manufacturer shorthand E63/64 beside both model names is not the M5 chassis designation. The old listing endpoint 2011 is corrected to the exact 2010 manufacturer and original fitment boundary. Some exact retailers say three layers or include a cleaning kit and numerical flow gain, but the current primary does not certify those additional contents or a numeric gain. This listing supplies two filter elements; a cleaning kit is not promised without verified current packaging. The actual boxed revision has not been inspected. No newer turbo M5/M6, ordinary 5-/6-Series engine or shared BMW badge application is inferred.
Key Features
- Oil-free synthetic filtration media.
- Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact page describes two synthetic layers. Clean both elements using oil-free filter guidance; no re-oiling.
- Rounded open pleats provide usable filter area and dust-holding capacity.
- Full polyurethane perimeter frame and progressive bump seal.
- The exact current manufacturer gives qualitative flow language without a numerical gain or efficiency percentage. A retailer 33% claim is not treated as an exact current manufacturer test result or horsepower guarantee.
Fitment
| Detail | Value |
|---|---|
| BMW M5 | E60 2006–2010 S85 5.0L V10; original housings retained |
| BMW M6 | E63/E64 2006–2010 S85 5.0L V10; original housings retained |
| Supplied quantity | TWO filter elements, one pair per exact primary |
| Media | Current exact primary two oil-free synthetic layers; conflicting retailer three-layer wording qualified |
| Cleaning kit packaging | Older retailer promise not confirmed by current primary; not guaranteed included |
| Other BMW engines | No newer turbo M or non-S85 engine / housing interchange inferred |
31-80168: verify the exact engine, original element and housing. Model or trim names alone do not establish all-engine interchangeability.
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | 31-80168 |
| Media | Pro DRY S; oil-free synthetic media |
| Configuration | Two OE-replacement air-filter elements; original housing retained |
| Pleat description | Rounded open pleats; no unverified overall dimensions |
| Frame / seal | Polyurethane perimeter frame; progressive bump seal |
| Service | Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact page describes two synthetic layers. Clean both elements using oil-free filter guidance; no re-oiling. |
| Flow statement | The exact current manufacturer gives qualitative flow language without a numerical gain or efficiency percentage. A retailer 33% claim is not treated as an exact current manufacturer test result or horsepower guarantee. |
| Emissions | Exact manufacturer page states this filter does not require a CARB EO number; other modifications are not certified by that statement |
What's Included
- Two Pro DRY S OE-replacement air-filter elements.
- No complete airbox, intake tube, sensor, separate coupler kit or filter-service supplies are documented as included.
About aFe Power
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
Related Parts
- Browse aFe Power filter configurations; compare the exact original housing and engine.
- Manufacturer filter-media maintenance guidance; follow the oil-free Pro DRY S cleaning routine.
Frequently Asked Questions
What is the 31-80168?Two Pro DRY S OE-replacement air-filter elements for the verified housing and engine application described here; this is not a complete intake system.
Which application should I verify?The current exact manufacturer identifies BMW M5 / M6 2006–2010 S85 5.0L V10 and explicitly describes a PAIR of oil-free filters with two layers of progressively finer synthetic media. Exact Turner detail identifies E60 M5 and E63/E64 M6 original housings; the manufacturer shorthand E63/64 beside both model names is not the M5 chassis designation. The old listing endpoint 2011 is corrected to the exact 2010 manufacturer and original fitment boundary. Some exact retailers say three layers or include a cleaning kit and numerical flow gain, but the current primary does not certify those additional contents or a numeric gain. This listing supplies two filter elements; a cleaning kit is not promised without verified current packaging. The actual boxed revision has not been inspected. No newer turbo M5/M6, ordinary 5-/6-Series engine or shared BMW badge application is inferred.
Is the Pro DRY S media oiled?Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact page describes two synthetic layers. Clean both elements using oil-free filter guidance; no re-oiling.
Does the flow percentage guarantee more engine power?The exact current manufacturer gives qualitative flow language without a numerical gain or efficiency percentage. A retailer 33% claim is not treated as an exact current manufacturer test result or horsepower guarantee.
How does this filter seal?Its progressive bump seal and full polyurethane perimeter frame conform to the original housing. The manufacturer says separate filter gaskets or sealants are not required; the existing housing must still close and secure correctly.
Are a hose coupler and cleaning kit supplied?The exact listing identifies an OE-replacement filter. A generic Coupler Included field does not establish a separate hose package; no airbox, tube, sensor, cleaner or oil bottle is documented as supplied.
Are a pair of filters and a cleaning kit both guaranteed?The current manufacturer explicitly describes a pair of filters. A separate retailer promises a cleaning kit, but current primary packaging does not confirm it, so the two elements are specified while the cleaner kit remains unverified rather than promised.
When should I clean it?Inspect according to actual dust exposure and restriction. Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact page describes two synthetic layers. Clean both elements using oil-free filter guidance; no re-oiling. Use low-pressure rinse from the clean side toward the dirty side, let the element dry naturally before reinstalling. Do not use heat, compressed air or any filter oil. Do not treat an older general-care mileage example as a guaranteed interval for every vehicle or environment.
Installation Instructions
- Read the exact manufacturer product information for 31-80168 and the original vehicle airbox service procedure.
- With the engine off and cool, compare the new filter and original element, including the sealing interface. Resolve an engine or housing mismatch before installation.
- Open the original housing according to its service procedure, remove the old element and keep debris out of the clean intake path. Clean the housing seat.
- Seat the polyurethane frame evenly without folding the bump seal or adding sealant. Close and secure the original housing and inspect all its attachments.
- Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact page describes two synthetic layers. Clean both elements using oil-free filter guidance; no re-oiling.
No vehicle-specific installation PDF or numeric airbox torque is linked on this exact manufacturer page. Follow the original housing service procedure and the correct oil-free Pro DRY S maintenance directions. Read the manufacturer media maintenance guidance.
31-80168: verify the original filter interface before operation.
California Proposition 65 Warning
- This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
- California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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