Upgrade your G20/G21 320i or 330i with this premium Valvetronic catback exhaust system. Stainless steel or titanium construction with vacuum-controlled valves for a sporty sound on demand. Improved flow and performance. Perfect for those who want a sporty sound with everyday usability.
Advantages
- Valvetronic system – sports sound on demand
- Stainless steel or titanium construction – durable and lightweight
- Vacuum-controlled valves – reliable system
- Improved flow for more power
- Direct bolt-on – uses OE mounting points
Material & Construction
This catback system is available in stainless steel (T304) or titanium construction. Both options are TIG-welded for maximum quality and durability. The Valvetronic system uses vacuum-controlled valves to regulate exhaust flow. Valves open = sporty sound, valves closed = quiet mode for everyday use.
The internal diameter is optimized for maximum flow without backpressure. The system is a direct bolt-on replacement and uses all original mounting points. Suitable for G20 (sedan) and G21 (touring) 320i and 330i with B48 engines. Perfect for those who want a sporty sound without compromising everyday usability.
Installation & Assembly
The catback system is a direct bolt-on replacement. Remove the original exhaust system from the catalytic converter. Install the new catback system using the original mounting points. Connect the vacuum lines to the valves. Test the valve function. Professional installation is recommended for a perfect fit.
Key specifications: T304 stainless steel or titanium construction, TIG-welded, vacuum valvetronic system, improved flow, direct bolt-on, suitable for G20/G21 320i/330i B48. No tuning required but recommended for optimal performance.
Technical Specifications
| Material
|
Stainless steel T304 or titanium |
| System
|
Vacuum valvetronic |
| Engine
|
B48 (320i, 330i) |
| Suitable for
|
G20 sedan, G21 touring |
| Assembly
|
Direct bolt-on catback |
| Tuning
|
Not required (but recommended) |
Maintenance & Warranty
Regularly check the fasteners and vacuum lines. Test the valves periodically. If there are any problems, check the vacuum lines and valves. Stainless steel can discolor due to heat; this is normal.
This product is covered by the manufacturer's warranty against material and manufacturing defects. Damage due to improper installation or excessive use is not covered by the warranty.
Frequently Asked Questions
-
Stainless steel or titanium? Titanium is lighter and fades better, while stainless steel is more durable and less expensive.
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How do the valves work? Vacuum-controlled: valves open = sporty sound, closed = silent.
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Do I need tuning? Not required, but recommended for optimal performance.
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Does this fit a 330e? No, only the 320i and 330i with a B48 petrol engine.
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How long does delivery take? Available from stock.
