Our favorite Mods for the E9x 335i 🤩 MAPerformance 3-inch aluminum charge pipe ✅ The factory plastic charge pipe on the E9x 335i is a known weak point, especially once boost is turned up, and the MAPerformance aluminum unit eliminates that failure risk entirely. It also improves airflow consistency and reliability, making it a must-have supporting mod for any tuned N54 or N55. BC Racing BR Series coilovers 🏎️ The BR Series gives the E9x 335i adjustable ride height and damping, letting you dial in both stance and handling to match how the car is driven. They dramatically reduce body roll and sharpen steering response without completely sacrificing daily drivability. aFe Power Mach Force XP Exhaust System 😤 The Mach Force XP exhaust unlocks a deeper, more aggressive tone that actually fits the turbo’s character on the 335i without sounding ricey. It also reduces exhaust backpressure, helping the turbos breathe better and slightly improving throttle response. HPS Performance 3-inch...