| Part Number | AHP-BMW-M4-006 |
| OEM Number | 18307991896 |
| Condition | Aftermarket |
| Warranty | 12 months |
| Material | Grade 5 titanium |
| Weight | 11.5kg (vs 25.5kg OEM) |
| Valves | Active – Sport/Comfort modes retained |
| Tips | 4 x 90mm titanium |
| Sound | Aggressive Sport, civilised Comfort |
| Fitment | Cat-back from downpipes |
The full titanium cat-back exhaust system for the BMW M4 G82 Competition saves 14kg over the OEM stainless system while delivering an addictive S58 exhaust note. The active valve system is retained, allowing the exhaust to adapt between quiet and Sport modes via iDrive M settings.
- 1
- Allow exhaust to cool
- 2
- Disconnect both valve motor connectors
- 3
- Loosen downpipe-to-mid-pipe clamps
- 4
- Remove rubber hanger isolators
- 5
- Remove old system in sections
- 6
- Install new system from rear forward
- 7
- Hand-tighten all connections initially
- 8
- Align tips centrally in bumper
- 9
- Torque all clamps
- 10
- Reconnect valve motors.
BMW
Aftermarket
BMW M4 Competition Titanium Exhaust System
AHP-BMW-M4-006
· OEM: 18307991896
CLA C118 · 2020–2024
$3,950.00
Low Stock — 2 remaining
Free shipping — on orders over $150
30-day returns — no questions asked
OEM specification — quality guaranteed
12 months — warranty included
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Full titanium cat-back exhaust for BMW M4 G82 Competition. 14kg lighter than OEM. Active valves.
