Project Cologne is back with a vengeance! The M54B25 engine in this E46 325i has a rod knock, and in this episode we do the swap that was always planned, 330i M54B30 engine with a 6-speed manual gearbox. This marks the new chapter for project Cologne as we are going to turn it into a track capable car! After completing the swap, we go straight for the Nürburgring and do some laps with @mgcharoudin. New Merch shop! - https://m539restorations.com/ You can support me on Patreon! - / m539restorations Follow me on Instagram - / m539_restorations Probsten-Tech, all your Vanos needs - https://www.probsten-tech.de/ Performance brakes & more, use CODE: M539 - https://www.brakes-shop.com/ BimmerWorld - https://www.bimmerworld.com/ Oil check valve - https://www.die-vschmiede.de/products... Aqua (vapor) blasting cabinet 1215 - https://www.vaporblastingequipment.co... Find Liqui Moly oil and additives for your car - https://www.liqui-moly.com/en/service... BendPak lifts - https://www.b