ARM Motorsports Speed Cave ARM Motorsports N54 Relocated 2 inch Inlets SUPER DETAILED REVIEW YouTube ARM Motorsports Speed Cave N54 INLETS ARM Motorsports N55 FBO KIT ARM Motorsports ARM Motorsports Speed Cave. HIGHLIGHTS Faster Turbo Spool Increased Air Flow Direct Fit PROFILE The ARM Motorsports' FMIC Hose Upgrade is designed to work seamlessly with the ARM 5" 7" FMIC and N54 N55 Charge Pipe upgrades to eliminate any restriction from the OEM connections. The ARM Motorsports' FMIC Hose Upgrade replaces the short hose from the turbo outlet pipe to the intercooler on the hot side, and the longer hose from the intercooler to the charge pipe on the cold side. With it's extra large 3 in inside diameter, the ARM intercooler hoses are 50% larger than the OEM intercooler hoses, the largest intercooler hose upgrade available for the E8X and E9X chassis. CONSTRUCTION Constructed with 5 layers of extra durable, high temperature silicone, the ARM FMIC Hose Upgrade has been tested to hold over 30psi. Whether you're running a stock turbo N54 or N55 at 22psi or even upgraded turbo s at 27psi, the ARM FMIC Hose upgrade is able to withstand even the most demanding applications. In addition to the the size and durability of the hoses, one of the biggest improvements you will see with the ARM FMIC hose upgrade is the single piece construction on both sides of the intercooler. This will give the charged air flowing from the turbo s in your N54 or N55 powered BMW one uninterrupted pathway from the turbos to the intercooler and from the intercooler to the charge pipe. Being constructed of a single piece minimizes the turbulence caused by connection points between hoses and piping. Combined with our N54 N55 Charge Pipe Upgrade, your BMW will have full 3 piping from the intercooler cold side all the way to the throttle body. The hot side hose is sized at 2. 5 to match up with the OEM turbo outlet size and expands to 3. 25 ID to fit up to the ARM FMIC. The cold side hose is also 3. 25 at the intercooler and reduces slightly to a 3 ID which is maintained all the way to the charge pipe. With the ARM cold side hose being one solid piece, it removes two connections in the middle of piping found on most other N54 N55 intercooler piping upgrades. Every connection brings with it a small disruption in airflow, the severity of the turbulence varying depending on the characteristics of the connection. Removing these extra connections in the intercooler piping system improves the transition of air flowing from the intercooler to the charge pipe. IN THE BOX ARM Hose Upgrade Hose Clamps FITMENT GUIDE Requirements: ARM 5" or 7" FMIC ARM N54 or N55 Charge Pipe Make Chassis Model Engine BMW E82 135i N54 3. 0L BMW E82 135i N55 3. 0L BMW E90 335i N54 3. 0L BMW E90 335i N55 3. 0L BMW E90 335xi N54 3. 0L BMW E90 335xi N55 3. 0L BMW E92 335i N54 3. 0L BMW E92 335i N55 3. 0L BMW E92 335is N54 3. 0L BMW E92 335xi N54 3. 0L BMW E92 335xi N55 3. 0L BMW E93 335i N54 3. 0L BMW E93 335i N55 3. 0L BMW E93 335is N54 3. 0L (Please note: While other charge pipes may work, we can only guarantee correct fitment with ARM N54 N55 Charge Pipes) ARM MOTORSPORTS LIFETIME WARRANTY Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship or fitment. The warranty entitles you to a replacement unit.