Not alot. You get a cool sound though :) with the intake
http://youtube.com/watch?v=EcKo8g4e2...elated&search=
and yes it sounds just like that...
An axle back wont have much , but a full catback with bigger piping will, and I dont think anyone does a cat back yet. Here is a video of what the TRD sounds like. It's on Violins car, but the new and old TRD axlebacks sound like this. I have one myself. If you have any questions let me know. The install for the exhaust took me less then 30 minutes. Most of the exhausts out there are for the liftback so be careful when ordering one. TRD has one and I seen where Greddy is wanting to make one. I guess these guys just like lost revenue :)
http://youtube.com/watch?v=T3cnyLYwC...elated&search=