Doesn't the core have a different cell count? I thought the FI was 300 v. 200 for the Berk? A lower cell count can mean better flow, whereas a higher count means it'll probably work slighly better in terms of emissions and rasp reduction.
__________________
2012 Mercedes C63 AMG P31 Sedan, ROW, aFe, Eurocharged Dyno Tune. 438WHP/415WTQ
2010 SOLD: 40th Anniversary 370z
|