You were saying that the exhaust on any car is fake, but you like the fake sound from your factory stock G35?
G35s sound like shit. Straight 6s can sound good but V6s sound like shit no matter how much you try to dress up the exhaust note. If you think you've done enough to make the V6 sound good, you haven't heard a well setup I6 or V8.
My 03 Cobra 32 valve 4.6L V8 with long tube headers, x pipe, and Borla straight through mufflers sounds 10000x times better WITHOUT special pipes or tricks or resonators to attempt to shape the sound.
Of course, sound is subjective, so I'll just leave it at that.
5 years ago the best 6 cyl BMW had (and still is IMO) is the S54 from the M3 making 333 HP N/A from 3.2L. That was only available in the much lower production M, and was a highly strung finely turned engine that already came with individual throttle bodies and tubular headers from the factory (eg: it's as good as it can be with little to no gains from bolt ons and requires forced induction to take it any further).
This was a limited edition engine that is the pinnacle of n/a 6 cyl engines, and you're comparing that to much cheaper mildly tuned single throttle body iron manifold mass produced engine in a high volume production car? Typical fan boy euro snob attitude right there.
Tell me, why weren't BMWs
other 6 cyl engines making 300 HP more than 5 years ago? And tell me, who else had 6 cyls with over 300 HP more than 5 years ago? VQ35s and 2GRs were only making what 267 HP around 2005.
PS the 2006 G35 is not 300/300, it's 282/269 or 298/258 at MOST, nice rounding on the torque there.