



AKRAPOVIC S-B4SO3-HILT Muffler Slip-On Line (Titanium) for BMW C400X / GT 2025-
Description AKRAPOVIC S-B4SO3-HILT Muffler Slip-On Line (Titanium) for BMW C400X / GT 2025-
This Slip-On exhaust system is designed as a sporty upgrade for the single-cylinder BMW C 400 scooter. It features a sandblasted outer sleeve made of high-grade lightweight titanium, combined with a stainless-steel inner structure and a carbon-fibre end cap. The muffler incorporates a distinctive imprint that enhances the dynamic appearance while also increasing structural strength and long-term durability.
Titanium mounting brackets allow direct installation of the original stock heatshield, ensuring seamless integration with the scooter’s factory components. The use of lightweight materials results in a significant weight reduction compared to the standard exhaust system.
When tested on the in-house dyno against a BMW C 400 equipped with the stock exhaust, the system delivers measurable power and torque gains at higher rpm. The exhaust produces a deep and sporty sound while remaining fully EC/ECE type approved and Euro 5+ compliant. Plug-and-play installation means no ECU remapping is required.
- Sandblasted high-grade titanium muffler outer sleeve
- Stainless-steel inner structure with carbon-fibre end cap
- Reinforced muffler design for increased durability
- Titanium brackets compatible with stock heatshield
- Deep and sporty sound character
- EC/ECE type approved and Euro 5+ compliant
- No ECU remapping required
Specifications:
- Maximum Power: 20.0 kW at 7500 rpm (+0.9 kW)
- Maximum Torque: 28.3 Nm at 6000 rpm (+1.1 Nm)
- Weight: 3.3 kg
- Weight Reduction: -1.7 kg (-33.2%)
Original: $980.18
-65%$980.18
$343.06Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Description AKRAPOVIC S-B4SO3-HILT Muffler Slip-On Line (Titanium) for BMW C400X / GT 2025-
This Slip-On exhaust system is designed as a sporty upgrade for the single-cylinder BMW C 400 scooter. It features a sandblasted outer sleeve made of high-grade lightweight titanium, combined with a stainless-steel inner structure and a carbon-fibre end cap. The muffler incorporates a distinctive imprint that enhances the dynamic appearance while also increasing structural strength and long-term durability.
Titanium mounting brackets allow direct installation of the original stock heatshield, ensuring seamless integration with the scooter’s factory components. The use of lightweight materials results in a significant weight reduction compared to the standard exhaust system.
When tested on the in-house dyno against a BMW C 400 equipped with the stock exhaust, the system delivers measurable power and torque gains at higher rpm. The exhaust produces a deep and sporty sound while remaining fully EC/ECE type approved and Euro 5+ compliant. Plug-and-play installation means no ECU remapping is required.
- Sandblasted high-grade titanium muffler outer sleeve
- Stainless-steel inner structure with carbon-fibre end cap
- Reinforced muffler design for increased durability
- Titanium brackets compatible with stock heatshield
- Deep and sporty sound character
- EC/ECE type approved and Euro 5+ compliant
- No ECU remapping required
Specifications:
- Maximum Power: 20.0 kW at 7500 rpm (+0.9 kW)
- Maximum Torque: 28.3 Nm at 6000 rpm (+1.1 Nm)
- Weight: 3.3 kg
- Weight Reduction: -1.7 kg (-33.2%)

















