MST 6" Catted Downpipe OPF/GPF for BMW G20/G21 B48 2.0 (BW-4807DP)
$1,459.70
MST 6" Catted Downpipe OPF/GPF for BMW G20/G21 B48 2.0 (BW-4807DP)
$1,459.70
MST Performance
6" Catted Downpipe (OPF/GPF)
for BMW G20 / G21 B48 2.0
BW-4807DP
G20/G21 B48 2.0 • Catted Downpipe • 300-Cell • OPF/GPF Equipped
Overview
The MST Performance BW-4807DP is a 6-inch catted downpipe designed specifically for 2021-2024 BMW G20 / G21 B48 2.0L vehicles equipped with the factory OPF/GPF (Otto Particulate Filter / Gasoline Particulate Filter). Featuring a 300-cell high-flow metallic catalytic converter, this downpipe dramatically reduces exhaust restriction compared to the factory unit while maintaining catalytic emissions function.
OPF/GPF-equipped B48 vehicles suffer from significant exhaust restriction at the factory, particularly under load. The BW-4807DP eliminates this bottleneck and unlocks tuning headroom for Stage 1 and Stage 2 maps, with a meaningful improvement in turbo response and exhaust note.
Key Features
- Designed specifically for OPF/GPF-equipped G20 / G21 B48 vehicles
- 300-cell high-flow metallic catalytic converter
- 6-inch downpipe length for optimal flow characteristics
- Stainless steel construction with TIG-welded joints
- Significant reduction in exhaust restriction vs. factory unit
- Pairs with Stage 1 and Stage 2 tunes for full power potential
- OE-style flanges for direct bolt-on fitment
Fitment
- 2021-2024 BMW G20 320i / 330i (B48 2.0L) — OPF/GPF equipped
- 2021-2024 BMW G21 320i / 330i Touring (B48 2.0L) — OPF/GPF equipped
Note: This downpipe is designed for OPF/GPF-equipped vehicles only. Verify your vehicle's particulate filter configuration before ordering. Local emissions laws may restrict the use of this product on public roads — consult your local regulations.
What's Included
- MST BW-4807DP Catted Downpipe Assembly
- 300-cell metallic catalytic converter (installed)
- Gaskets and required hardware
Part Information
| Field | Detail |
|---|---|
| Part Number | BW-4807DP |
| Brand | MST Performance |
| Product Type | Catted Downpipe |
| Engine | B48 |
| Make | BMW |