NM Engineering Intake system for the 2011 MINI Cooper S with N18 engine for the US model.
The 'Open-Air-Box' system gives you the abundance and unrestricted 360° of air source compared to OEM's sealed airbox with flat filter and tube-fed air source. During R&D, we installed temperature probes around the engine compartment and the gauge showed the inside temperature matched the ambient after vehicle speed past 20 mph. And by logging the Mass Air Flow (MAF) sensor also showed that open-air-box intake generated a higher volume (gr/sec) of air going through the sensor. So when we had to choose between (a) cooler air at all speed with limited air source, vs. (b) cooler air at 20~ mph. with unlimited air source, the choice was pretty obvious.
MINI did a great job on 2011 model MCS in improving the turbo intake tube by replacing the soft rubber tubing with full size and rigid ABS plastic one, similar to NM's aluminum/silicone version that we offer for the 2007~2010 MCS & JCW vehicles. So we decided to leave the inlet tube out and price out the kit to be more economical.
C.A.R.B. Exempt! EO# D-236-22
If you purchase this kit prior December 2012 for your post-April '12 production Mini, please email or call us (805.388.7171) and we will send you the updated bracket for FREE!
For those who do not want to deal with periodical filter cleaning, a dry paper filter is an option. Made using the same paper material as the factory panel filters, designed to be thrown away once dirty. Same performance and price as the oiled filter. Make sure to choose part number that ends with (D) for dry filter kit.