egr delete confirmed
stock downpipe with bird**** welds into most likely straight pipe the rest of the way, hence the howl. mine has a nice whistle to it also but looks a little better than yours.
also missing the EGR/ASV combo (replaced with a race pipe). has a neuspeed P-flow intake which most people will tell you to get rid of and stop contaminating your MAF sensor and wearing away the turbo compressor wheel. I tend to agree with that.
ok that interior is kinda cool. I wouldn't... but I can't deny that it's cool. not factory, but looks to be pretty well done. i would be 10x cooler if you do the a b c pillar trim and headliner in black and replace the rearview mirror with a factory black one. I just replaced mine with an audi black rearview and it makes a world of difference.
those headlights look awful, get some nice stock ones or ****ty stock ones and replace the lenses with glass ones from VXT or Helix.
must get rims also, steelies are a no-go when you rock a porno style interior.