[ATL BRZ]

I'm more interested in a Jackson Racing SC group buy so I can run the CARB tune as needed, upgrade the pulley as needed, have a thermostatic engine oil cooler with full support from JR and drive when it's cold outside, and not have to carry extra cogged belts around for when they break. Also so I can own a product from a company that does lots of track testing before releasing a product and continues to do so nearly every weekend after release with less issues than any other FI kit to date which validates the fact that simplicity and reliability are correlated.

EDIT: before anyone starts throwing the C38 compatibility around in defense of the KW kit... if you're that concerned with upgrade-ability and your power goals are 350+ whp then you're better off jumping into a turbo kit from the get-go as a turbo will do everything better at that power level. The C30-94 will do 280whp conservatively after tuning with the stock JR pulley with pump gas and well over 300whp all day with E85 and the smaller JR pulley.