Twin‑Turbo Diesel Performance Transformation

This BMW 3 Series 335D is a powerful 6‑cylinder twin‑turbo diesel machine, and after receiving its RTMG tune at DKU Performance, it now produces an impressive 400BHP. The result is a sharper throttle response, stronger pull, and a sound upgrade that enthusiasts will appreciate. This build showcases how vehicles in the BMW 3 Series 335D category can benefit from specialist tuning similar to the attention given to high‑performance models such as those running a BMW M4 Exhaust.

Custom Turbo‑Back Exhaust System

At DKU Performance, our engineers design and manufacture precision‑built stainless steel exhaust systems. For this project, a full turbo‑back exhaust system was created to enhance flow, improve throttle response, and deliver a deeper, more aggressive exhaust tone. You can see the full transformation process and hear the unreal sound for yourself in the video on our website: https://www.dkuperformance.co.uk/.

Expert Tuning & Sound Enhancement

This upgraded BMW 3 Series 335D demonstrates how professional tuning and a custom exhaust setup can dramatically enhance both performance and acoustics. The combination of ECU calibration, exhaust craftsmanship, and engineering expertise results in a driving experience that rivals even vehicles fitted with performance upgrades like a BMW M4 Exhaust. Visit DKU Performance to explore more bespoke tuning and exhaust solutions.