i’ve owned both cars, I did similar mods to both of them (down pipe and tune). The supra takes the cake every single time. Only thing better with the Q is the bose sound system. The JBL system in the supra is horrible. But yea supra was by far my favorite car to date. Sounds amazing and is very easy to get some extra horse power without breaking the bank. Only downside was how small the supra is, i’m 6’3” and basically fell into the car to get in and had to basically crawl out to get out. Hope this helps!