JCW Intake High Flow Air Filter Replacement

Ok, so I was a bit skeptical with some of the reviews of the Mini Madness JCW intake, with phrases like it felt like a slingshot. Well, today, after getting home from getting the oil changed in the MINI, I proceeded to install the new intake filter along with doing the flap mod. I took it out to a straight, deserted country road and let her rip! HOLY CRAP, I had to use both hands on the wheel to combat the torque steer through third gear! I kid you not, it felt like a lot more than 5HP!! The car has never felt this powerful, especially at higher rpms. In fact, shifting at redline in 2nd and 3rd did produce a slingshot like effect as the car seemed to leap ahead, feeling as if the front tires were ready to leave the ground. Also like the added sound from the flap being open at all rpms. Very worthwhile mod!!

I have a 2006 S with the factory installed complete JCW pkg. It is strong but more is always better and can obviously benefit from some additional tuning. The install was easy and the instructions were clear, including the additional box mod. My low end stumble problems are almost completely gone. Throttle response is significantly improved, more air is always better, even for an S. Engine sound is also better as the supercharger whine is a little more noticeable and a lot more impressive. Also, if your foam gasket sealing the air box to the cowl wall was as mangled and ill fitting as mine was, take the time to properly glue it to the air box. As is evidenced by this kit, every little helps. The results were better than expected. This is worth every penny, get it and make sure to do the box mod too. While you can feel and hear the difference across the entire rpm range , this has the most value where most of us need it the most at the lower end of the range, perfect. Thanks, Terry

The JCW high-flow performance air filter is must have for any car fitted with the JCW airbox. I have a 2006 MCS with the factory installed JCW upgrade package that includes the JCW airbox and I was amazed at the lack of thought put into the air filter with this factory upgrade, the paper filter was a joke. George replaced my paper filter with the JCW high-flow performance filter and recommended a modification that would increase the airflow even more. As I left his shop, I could instantly feel the difference in the performance of the car. I accelerated up the street increasing the RPM from 2000 through 5000 and the horsepower increase was amazing. It felt as if the car was being shot out of a slingshot, it just took off. That weekend I attended one of our local club's autocross events and the performance increase was instantly noticeable. The transition from a medium radius sweeper to a straightaway was outstanding. Low end torque and acceleration were much improved and as I became more adjusted to the power I was able to put it down even earlier exiting the turns and saw my raw times drop consistently. For the price and the time of installation I highly recommend this upgrade, you definitely will not be disappointed. George, thank you very much! Sincerely, Dudley Milder

I own a 2005 Cooper S JCW top to bottom. I bought this filter because the dealer charges 275$ CDN for a repalcement paper filter. The install was easy enough, just be careful when you disconnect the vacuum hose. The recommended Mini Madness mod to the airbox took less then a minute. When I fired up the car I knew just by the sound of the engine (blower) that something was different. Out for a quick spin and WOW!!!! What a difference in power and response. I thought 5 H.P, big deal; but if you have a JCW airbox you have to go this route. Mini Madness is great to deal with and I am VERY happy with this product. Thank you.

I was surprised at the amount of recommendations of this production from North American Motoring.com and Motoring underground. I had to try it, I installed it in less than 20 mins and the mod to the air box for the flap was a SWEET deal! The sound difference is amazing and I can really feel the performance difference from installing this filter over the stock JCW paper element. Forget paying $150 bucks for a paper one when you get this one it can be reused! cheers Mini Madness!