The best intercooler and hose kit for the BMW 135/335 E9x/E8x N55 on the market!
This complete package includes both our high-performance DO88 intercooler, charge hose kit, and turbo outlet hose, offering unmatched performance and reliability. If you have high-power goals and demand the absolute best, this kit is tailor-made for you.
Upgrading to our high-performance intercooler alone will notice a significant improvement. However, when combined with our charge hose kit and turbo outlet hose, the improvement is even more substantial. Our pressure hoses offer significantly better airflow than stock hoses, ensuring improved reliability over time. Even on an unmodified car, the stock plastic hose is prone to failure, making our kit a crucial upgrade.
Benefits with the do88 BigPack (OE intercooler/pipes):
– Larger core volume: 15,517 cm3 (6,933 cm3), a full 124% larger!
– Larger frontal cooling area: 1,151 cm2 vs. 658 cm2, a full 75% larger!
– Airflow at a pressure drop of 0.15 bar/2.18 psi: 498 CFM (354 CFM), a significant 41% increase!
– Maximum power gain of 13 HP! Measured on a 335xi N55 with Stage 1 tuning.
– Lower post-intercooler air temperature under the same conditions: 43°C (110°F), a full 15°C lower! Measured on a 335xi N55 with everything stock except the intercooler.
– Designed to handle high pressures and temperatures!
– The charging hose has two connections for methanol injection (1/8 – 27 NPT) and comes with blanking plugs for these connections.
The BigPack includes the all-aluminum DO88 high-performance intercooler, our upgraded turbo outlet pipe, and a complete 3″ (76 mm) throttle body side charge pipe and silicone hose kit. This BigPack replaces everything from the turbocharger outlet to the throttle body, resulting in a dramatic improvement in airflow and cooling performance.
The DO88 high-performance intercooler is an all-aluminum construction. With flow-optimized, CAD-designed cast-end tanks and an optimized core design, it achieves the best possible cooling efficiency combined with the lowest possible pressure drop!
Our upgrade turbo outlet pipe included in this kit is precision-engineered using the highest-quality materials, ensuring long-lasting durability and optimal functionality. The CNC-machined turbo outlet adapter provides a perfect fit, while the high-quality silicone hose reinforced with 4 layers of high-temperature aramid fiber fabric ensures maximum strength and flexibility.
The boost hoses are made from seamless aluminum tubing. 3″ mandrel-bent welded hoses with CNC-machined throttle body flange. High-quality silicone hoses custom-made with 4 layers of polyester/aramid reinforcement. These hoses can withstand very high temperatures and pressures!
It’s important to note that the OE intercooler and hoses were designed for the power level for which the car was originally built. Any increase in power or heavy use of the vehicle, even in its stock configuration, can exceed the performance capabilities of the OE components. Even after an engine software tune, the do88 BigPack will truly unlock the performance potential you desire.
Don’t worry, the do88 BigPack comes with all the necessary hardware for a hassle-free installation, ensuring a seamless upgrade experience.