BMW 3 Series / M340i
BMW B58 · Performance headers
T304 stainless performance headers for BMW B58 3.0T platforms (M240i / M340i / Z4 M40i) — heat-shielded, OEM sensor locations.
Specification
BMW B58 · Performance headers — details
| Material | T304 stainless |
| Valves | None — downpipe |
| Main pipe | Per chassis — confirm at enquiry |
| Tips | Per model — confirm at enquiry |
| System type | Headers & front sections |
| Fitment | BMW B58 3.0T platforms |
| Quality | Jig-built, back-purged TIG, pressure tested |
| MOQ / lead time | Sample 1 unit · 2-3 weeks standard |
Fitment notes are indicative — every enquiry is confirmed against your VIN / chassis photos before production.
How it is made
Checked before it leaves the floor.
- Full-penetration, back-purged TIG welds
- Jig-verified fitment on the real chassis layout
- Pressure tested and photo / video documented pre-shipment
- Foam-protected export packing, air or sea freight
