BMW had an official catalog of BMW Performance parts for the BMW E46 published in 2007 (judging by parts availability). I walked out of a BMW dealership with one upon spying it, and I’ve scanned it for your benefit as I have not been able to find it anywhere else online.
The catalog shows the original BMW Performance accessories for the 3 Series. The current equivalent would be the BMW M Performance line of performance accessories.
BMW Performance Accessories for the BMW E46, Official Catalog (PDF)
BMW Performance Parts on My E46
BMW Performance Muffler:
https://www.youtube.com/watch?v=l1ybnXykLIs
Full Listing of BMW Performance Parts for the BMW E46
| Item | Part Number | 3 Series Model | Comment/Application |
|---|---|---|---|
| Performance Wheel Front 8″x18″ | 36116781044 | E46 | Not for M3 |
| Performance Wheel Rear 8.5″x18″ | 36116781045 | E46 | Not for M3 |
| 18″ Performance Complete Wheel Set | 36110427742 | E46 | Not for M3, Michelin Tires |
| Cross-Drilled Rotors Front Left | 34110431905 | E46 | 330i only |
| Cross-Drilled Rotors Front Right | 34110431906 | E46 | 330i only |
| Cross-Drilled Rotors Rear | 34110431907 | E46 | 330i only |
| Performance Strut Brace Carbon | 51710429378 | E46 | |
| Performance Strut Brace | 51710395077 | E46 | |
| Performance Control Arm | 31120429578 | E46 | 330i (not with option Performance Package) or with option sport suspension SA 226 |
| Performance Suspension | 33500429577 | E46 | Sedan + Coupe not 330i or with option sport suspension SA 226 |
| Performance Suspension | 33500429752 | E46 | Convertible not 330i or with option sport suspension SA 226 |
| Performance Camshafts with updated software | 11120429575 | E46 330 | 330i without option Performance Package |
| Performance Differential | 33107508099 | E46 330 | 330i manual transmission without option Performance Package from 9/2000 onward |
| Short Shift Kit 2003 onward only | 25110430356 | E46 | 330i gearbox 6-speed |
| Short Shift Kit 2003 onward only | 25110430355 | E46 | 325i gearbox 5-speed |
| Performance Shift Knob | 25110429267 | all | 5 Speed |
| Performance Shift Knob | 25110429269 | all | 6 Speed |
| Performance Exhaust | 18100429614 | E46 | 330i, 325i M54 |
| Performance Air Intake | 13720429613 | E46 | 330i M54 |
| Performance Air Intake | 13720432306 | E46 | 325i M54 |