Damn she sounds good! :thumbs::thumbs::thumbs:
I'm pretty sure you would gain some performance.
Ps: When I changed the Supra's exhaust system to 90mm (from the gearbox straight through till the end) it made def. a difference in performance/noise and a little bit in fuel consumption. The bad thing is though, the growling always wants you to put foot !!!! rofl:biglol: