Description
Borla ATAK Cat-Back Exhaust is built for 2020–2025 BMW M8 Gran Coupe 4.4L. This version uses carbon fiber / black anodized tips. The tubing layout is Dual 3.5" to Dual 3" (loud path) & Dual 2" (quiet path).
Sound and Engineering
ATAK tuning gives the exhaust an assertive character under load. Its acoustic design shapes tone and manages resonance; overall volume still depends on the engine and the rest of the exhaust.
An active exhaust valve is included in the assembly. Follow the actuator and wiring instructions to retain the documented valve operation.
Polyphonic Harmonizer passages use different lengths and diameters to develop multiple exhaust notes before the mufflers shape the final character.
SwitchFire blends the exhaust streams through a crossover designed to replace the conventional center intersection, shaping the combined exhaust note.
Technical Specifications
| Manufacturer part number | 140988CFBA |
|---|---|
| Vehicle application | 2020–2025 BMW M8 Gran Coupe 4.4L |
| Sound configuration | ATAK |
| Engine displacement | 4.4L |
| Transmission | Automatic |
| Drivetrain | AWD |
| Material | T-304 austenitic stainless steel |
| Tips / configuration | Carbon Fiber / Black Anodized Tips |
| Tubing configuration | Dual 3.5" to Dual 3" (loud path) & Dual 2" (quiet path) |
| Tip diameter | 4.5" |
| Exit layout | Dual Split Rear Exit |
Fitment and Installation
- Match the vehicle, engine, body configuration and factory exhaust equipment to this part before installation.