aFe Magnum FORCE Stage-2 Si Cold Air Intake
Not sure which option fits your application? Contact Us — we're happy to help.
Request a Price Match
Found it cheaper elsewhere? Send us the details and we'll do our best to match it.
Request received
Thanks! Our team will review it and be in touch shortly.
aFe Magnum FORCE Stage-2 Si Cold Air Intake - BMW 3 Series (E9X) - 3.0L N52
The aFe Magnum FORCE Stage-2 Si is a fully sealed intake for the E9X BMW 3 Series with the naturally aspirated 3.0L N52 six. A moulded plastic housing with a vacuum-formed ABS cover encloses the filter, and two auxiliary inlet ducts styled after BMW's kidney grille bring in extra cool air from outside the engine bay.
Fitment Note
Suits the E9X 3 Series with the 3.0L N52 (non-turbo); aFe also lists the E82/E88 128i. Fits cars with or without active steering.
Inside is a 6 in (152mm) conical filter with an inverted top, feeding a heat-insulating moulded tube. aFe's dyno testing shows up to +9 kW (+12 hp) and up to +22 Nm, with 56% more airflow than the factory intake. The cover lifts off for easy filter servicing.
Options: Pro DRY S is a dry, oil-free three-layer synthetic media that cleans with soap and water. Pro 5R is a five-layer oiled cotton gauze media, each layer finer than the last, for the most airflow. aFe measured +12 hp with both, and +20 Nm (Pro DRY S) or +22 Nm (Pro 5R). Black has a plain black ABS cover; Carbon Fibre has a carbon fibre look ABS cover.
Installation by a professional is recommended.
Features
- Fully sealed two-piece housing keeps out engine bay heat
- Dual kidney-style auxiliary air inlet ducts
- 6 in inverted-top conical filter
- Heat-insulating moulded intake tube
- Black or carbon fibre look ABS cover
- Cover lifts off for filter servicing
- No cutting or drilling on factory parts
Pairs Well With
Need help choosing an intake for your 3 Series? Contact our team at sales@chicaneaustralia.com.au.
Product
- Brand
- aFe Power
- Part number(s)
- 51-81012-B (Pro DRY S / Black), 51-81012-C (Pro DRY S / Carbon Fibre), 54-81012-B (Pro 5R / Black), 54-81012-C (Pro 5R / Carbon Fibre)
Details
- Product
- Cold air intake
- Product line
- Magnum FORCE Stage-2 Si
- Housing
- Sealed moulded plastic with dual kidney-style inlet ducts
- Cover
- Vacuum-formed ABS, black or carbon fibre look
- Intake tube
- Moulded plastic
- Filter
- Conical, 6 in (152mm), inverted top
- Filter media options
- Pro DRY S (oil-free synthetic), Pro 5R (oiled cotton gauze)
- Airflow gain
- +56%
- Power gain
- +9 kW (+12 hp)
- Torque gain
- +20 Nm Pro DRY S, +22 Nm Pro 5R
- Filter included
- Yes
- Coupler included
- Yes
Contents
- 1 x air filter (Pro DRY S or Pro 5R, to suit the version ordered)
- 1 x intake tube
- 1 x housing
- 1 x cover (black or carbon fibre look, to suit the version ordered)
- 1 x silicone bellows coupling
- 2 x clamps
- 1 x brass fitting and 1 x brass plug
- Screws, washers and grommets
Vehicle fitment
Universal fit: this part suits any car. Check the specifications above for sizes and fittings.
| Make | Model | Chassis | Years | Versions | Engine | Brakes | Position |
|---|
Can’t see your car? Ask us and we’ll check fitment for you.
Need Help Finding the Right Part?
We’ll Track It Down for You
We know how frustrating it can be searching for the right part. If it’s not listed on our site, that doesn’t mean we can’t source it.
Fill out the quick form below and our team will track it down for you.