We are happy to announce that the Helix Stepped Core Intercooler is now available for the R56 Mini Cooper S 2007+ and Clubman S 2008+
Retail $749 plus shipping
No need for a group buy because we're doing an Introductory Price $679 plus shipping

You can call 215-739-8800 to order or do it directly from our site

More info in this thread





Core Design
Prior to the 335i and the R56 Mini stepped core design you had the option to either go Taller or thicker with the cores. In our design process we measured the captive areas in the front of the bumper in both depth and height and went about designing an intercooler that took up all of this area. The end result is an intercooler with 53% more frontal area as well as 50% more core volume. now about the core, we were not constrained to an off the shelf core in regards to ambient and internal fin count as we custom spec'd the core to this application. the core in the Helix FMIC is a single unit stacked up to our specifications in regards to ambient and charge row height and internal and external fin count. since our core has more volume we were able to increase the internal fin count to remove more temperature and still meet the targeted air flow and pressure drop for this application. as you see by the AIT data logs the intercooler works amazingly well.

Install:
Fits in stock location- YES
requires no cutting,removal and/or permanent modification- Yes

Design:
More core volume than stock- Yes 50%
More Ambient face than stock- Yes 53%
More charge rows than stock(5)- Yes 12
Bar and Plate construction- Yes

Performance:

STOCK turbo outlet temperature 245 degrees F(estimated using a 65 degree ambient and 65% compressor efficiency at 15 psi
Temp drop from 245f to 111f(peak temp) in 4th gear run = -134f degree drop

HELIX TEST turbo outlet temperature 253 degrees F(estimated using a 71 degree ambient and 65% compressor efficiency at 15 psi
Temp drop from 253f to 89f(peak) in 4th gear run = -164f degree drop, 21% better cooling than stock

AIT temp- 30 degree drop over stock
pre and post intercooler temp drop- 164 degrees F
Intercooler efficiency- 80% - 21% improvement in efficiency over stock(59%)
Core pressure drop spec is .5psi at 250hp(400cfm) airflow
Below are two graphs showing you the results from the data logging of our stock R56, then with only the Helix Stepped Intercooler installed. We think you will be impressed with the performance improvements!