So, I'm looking to replace the ALTA intake system with a closed system. The current system is just an open cone behind the engine. Instead I would like a closed system so the engine is always getting cold (or in Atlanta during the summer... less hot) air. Would be interested to see if anyone else has used these and the thoughts. So far I've narrowed it down to 3 systems. AEM Intake: $394.95 View attachment 41302 https://www.outmotoring.com/MINI-Cooper-S-AEM-Intake-21-699C_R55-clubman-R56-hatchback-R57-convertible-R58-coupe-R59-roadster-n14-engine-n18-2008-2009-2010-2011-2012-2013-2014-2015-cold-air-intake-upgrade.html What I like about this: Price compared to the other options. Closed system What I'm curious about: How will the plastic hold up over time? Its right above the engine and turbo so I image the heat will be significant. Does it have any "RAM" air effect that the others state they were designed for. It states: The part number for the N14 engine includes the metal inlet hose as shown on the detailed image installed. The N18 engine does NOT include the metal inlet hose, however it does have a silicone elbow hose to connect to the stock inlet hose. Since my car is no where near stock and the stock parts didn't come with it, I will need to confirm the inlet hose on mine is actually stock or figure out if there is a better alternative. Once installed the only upper stress bars that will fit are the GT spec and the AEM bar. RD Race – Full Carbon Intake: $895.00 View attachment 41303 https://www.outmotoring.com/rd-full-race-carbon-fiber-intake-system.html What I like about this: Carbon Fiber... yea. Not sure if that actually has any real value. I.e. is it really lighter than the AEM? What I have concerns with: Price... wow that is expensive. This can be installed on the N18 engine IF you do not install the elbow connector that would normally connect where the Mas air flow sensor is... so does this mean I need to create a custom mount for the Mas air flow sensor? Again, will have to go study my current setup to see. Was the carbon fiber laid well? Most of the other carbon fiber exterior bits on the car the clear is failing.. so working to replace. Would this fail with the heat? I'm considering wrapping the intake to further reduce the heat. If I do that, the "Carbon Fiber" look doesn't really matter. Instead it would be weight and air flow design. Did I say price... this bad boy is up there. Think its the most expensive system I've found. DDM: RAM Air intake: $448.00 http://www.detroittuned.com/ddm-works-r56-cooper-s-race-intake-system/ What I like about this: Specifically designed for the MINI. (not that the others were not but in their description they discuss) Pressurized air box design "The DDMWorks RAS (Ram Air Scoop) The unique shape of the DDMWorks RAS was designed to accelerate the incoming air from the hood scoop and keep the new intake box under pressure forcing even more cold air into the turbo and engine. Two diverters on the back of the RAS direct the air down into the filter, and the RAS seals with the top of our pressurized filter box (PFB) to ensure a cool ambient air supply." Discuss that it was designed to not impede maintenance. Installs easily over the bottom of your stock intake. Designed with a question I was asking... "We often get questions about water and the hood scoop and if there are any problems with water ingestion while driving in heavy rain." What I have concerns about: What strut brace will work with this system? Will the GT spec and the AEM bar work? Anybody have any experience with these? Am I missing any other good options?