The first product that our R&D team upgraded for our BMW M340i was the stock air intake system—a known point of restriction designed more for minimizing sound than maximizing performance. We designed the HPS Air Intake Kit to be a direct, no-compromise replacement for the restrictive stock system. The core is a 3.5" mandrel-bent aluminum tube that guarantees the smoothest airflow path, resulting in dyno-proven gains of up to 11.3 whp and 11.8 ft/lb of torque, instantly sharpening throttle response and acceleration.
The kit features a wrinkle-black powder-coated steel heat shield with a lid that integrates with the factory duct to ensure the reusable, high-flow air filter only draws in cold air. For superior durability, we use 3-ply reinforced silicone couplers and a billet aluminum quick connect at the turbo inlet to eliminate a common failure point. All connections use custom embossed worm gear clamps with rolled edges, guaranteeing a leak-free seal that won't damage the silicone. Available in multiple finishes (including polished aluminum and powder coated red, blue, or wrinkle black) to enhance your engine bay aesthetic.
With the intake kit completed, we then focused on a critical point of failure in the BMW M340i's turbocharged engine: the stock charge pipe. Our solution is a 3" aluminum charge pipe that is a robust replacement for the brittle factory plastic.
This design delivers an impressive increase of 4.6 whp and 7.3 ft/lb of torque and ensures reliable performance even at elevated boost levels. Key features include bead-rolled piping, a billet aluminum quick connect to the intercooler, and a convenient 1/8" NPT bung for future performance mods like water-methanol injection. Like the intake, it uses stainless steel embossed hose clamps for a secure, leak-free connection, all packaged in a finish (like polished aluminum) that perfectly complements the HPS intake.
