Turner Motorsport Intercooler for BMW 3 Series E90 (2006-2011)

Maximize performance and reduce intake air temperatures on your E90 335d with the Turner Motorsport Stepped Intercooler. Designed as a direct-fit upgrade for the factory intercooler, this high-efficiency unit increases charge air volume and airflow, helping your diesel-powered BMW run cooler, stronger, and more efficiently.

Cooler air is denser air, and denser air means more power. By reducing intake air temperatures (IATs), this upgraded intercooler allows your M57 engine to pack in more air and fuel per cycle, translating to improved performance across the RPM range.

Engineered for performance and durability, the Turner stepped intercooler features cast aluminum end tanks and a bar-and-plate core design, offering superior thermal efficiency and structural strength. Compared to the stock unit, it delivers a 65% increase in both frontal surface area and internal cross-sectional flow, ensuring better heat dissipation and reduced pressure drop. All of this performance comes in a lightweight package under 20 lbs.

Finished in a stealthy black coating with laser-etched Turner logos, this intercooler not only performs but looks good doing it.

Key Features:

Designed specifically for the E90 335d (M57 engine)
Cast aluminum construction for durability
High-efficiency bar-and-plate core
65% increase in frontal and cross-sectional area
Significantly lowers IATs for improved power and reliability
Reduced pressure drop for more consistent boost delivery
Lightweight design – under 20 lbs
Dimensions: 520mm wide × 200mm tall × 150mm deep
Direct bolt-on installation – no modifications required
If you're looking to get the most out of your E90 335d, the Turner Motorsport Stepped Intercooler is a must-have upgrade for your turbo diesel intake system.

Unlock the full potential of your turbocharged N54 or N55 engine with the Turner Motorsport Stepped Intercooler. Whether you're running higher boost, track days, or just spirited street driving, this direct-fit upgrade is engineered to dramatically reduce intake air temperatures (IATs) and improve charge air flow for consistent, reliable performance.

Cooler air is denser air, and that means more oxygen per cycle for better combustion and more power. The factory intercooler quickly becomes a bottleneck under increased load or in warm conditions. Turner’s stepped intercooler solves that by offering an 80% increase in frontal surface area and cross-sectional flow, helping your BMW stay cooler and pull harder.

Constructed with high-quality cast aluminum end tanks and a bar-and-plate core, this intercooler delivers superior cooling efficiency and reduced pressure drop, even under sustained high-boost operation. The black powder-coated finish offers a clean, stealthy appearance, while the etched Turner logos add just the right touch of motorsport style.

Perfect for:
E82/E88 135i, E9X 335i/335xi, E84 X135i, E89 Z4 35i/35is

Key Features:

Direct-fit upgrade for E chassis N54 & N55 engines
Durable cast aluminum end tanks
High-efficiency bar-and-plate design
80% increase in frontal and cross-sectional area vs. stock
90% increase in charge air volume
Substantially lower IATs for improved power and reliability
Reduced and more consistent pressure drop
Lightweight design (under 20 lbs)
Dimensions: 520mm wide × 210mm tall × 130mm deep
Stealth black finish with Turner-etched logos
If you're looking to push your turbo BMW harder, the Turner Motorsport Stepped Intercooler is the cooling solution that keeps your engine running strong—pull after pull.