Stromung for me, but the only reason I chose that over the Scoobysport is because the Stomung is a touch quieter. But I think thier HP gains are almost identical, and the duel-tip Stromung looks almost stock.
I think the Apex'i N-1 is a good application I haven't tried neither oneof the above mentioned soI can only speak of the N-1 great sound!, awesome response at Mid and High range Add a CAI, and Headers and you got yourself a Winner.:sunny:
stromung dual tip for me. i also go the axle back. nice tone and looks pretty much stock from the back. only problem is that it started rusting after 3 months. not that bad rusting, but the welds have a little rust on it.