do88 07-13 BMW 135i/335i N54/N55 (E82/E88/E9X) Intercooler

If you're pushing your BMW 135i or 335i with the N54 or N55 engine beyond stock power levels, managing intake air temperature is crucial. This do88 intercooler is designed to replace the factory unit, offering a significant upgrade for turbocharged performance. Keeping your intake air cooler means denser air charge, which allows your engine to make more power reliably, especially when you've modified the turbos or tune.

This intercooler features a bar-and-plate core design, which is known for its excellent heat dissipation capabilities. The core itself is quite large, measuring 700 x 200 x 100 mm, providing substantially more surface area and volume than the stock intercooler. This increased capacity helps to reduce heat soak, meaning you'll see more consistent power output during repeated acceleration or track use. The end tanks are made from cast aluminum, ensuring a solid connection and durability. do88 also includes all the necessary mounting hardware and silicone hoses for a complete installation, making it a straightforward bolt-on replacement for the factory intercooler.

Installation involves removing the stock intercooler and plumbing, then fitting the new do88 unit and connecting the included hoses. While it's a direct replacement, some minor trimming of the plastic undertray might be necessary depending on your specific model and any other modifications you may have. This intercooler is a popular choice for enthusiasts looking to improve their N54 or N55 powered BMW's performance and reliability under demanding conditions.