Mr Singh i may know someone who will want that set up soon.
I have heard this Gladen set in Mr Singhs car and i think it would be wrong to go for L7 or Alpine routes. Like Mr Singh has said the bass on those kits isn't great. When i heard the Gladens i was really impressed, the woofers played really low and i think that was without any EQ or anything IIRC.
Turbo Dynamics Hybrid Turbos, Wagner Intercooler, DPF Delete Pipe with Sports Cat, Ecotune custom map ~ 422bhp & 618ft.lbs