Introducing the BMW 135i with the N55 Engine
The BMW 135i is a compact performance car powered by a 3.0 litre inline six turbocharged N55 engine. Producing 302 hp and 400 Nm of torque, it delivers strong and responsive power through either a manual or automatic gearbox with rear wheel drive. Known for its balance of performance and everyday usability, the 135i offers an engaging driving experience straight from the factory, made even better with a BMW 135i Exhaust upgrade.

Performance and Handling
Capable of accelerating from 0 to 60 mph in around 5 seconds, the 135i combines straight line speed with sharp handling. Its compact size and balanced chassis make it agile through corners while remaining comfortable enough for daily driving. With the addition of a BMW 135i Exhaust System, the car benefits from improved flow and a more engaging driving feel.

DKU Performance Upgrades
This BMW 135i received a series of performance focused upgrades designed to improve power delivery, throttle response and overall driving excitement. The work carried out included the installation of a high flow 3.5 inch decat downpipe and a full 3 inch stainless steel cat back exhaust system with a premium single back box and twin tailpipe tips. A custom engine tune was also applied to match the upgraded setup, ensuring the engine performs efficiently with the improved airflow.

Exhaust Systems and the Driving Experience
The upgraded BMW 135i Exhaust and decat downpipe significantly reduce back pressure and allow the turbo to spool faster, resulting in sharper throttle response and stronger mid range performance. The 3 inch BMW 135i Exhaust System with a premium single back box delivers a deeper and more aggressive exhaust tone while maintaining a clean and refined rear finish. Combined with a custom tune, this setup transforms the driving experience with improved responsiveness, sound and overall performance across the rev range.