The 2nd Gen xB ( and I have a 2012 9.0 RS) is powerful enough to surprise quite a few cars. There's exhaust/ intake/ and heads obviously, most everyone does that - but to change the "dynamics" of how it rides, a upper strut bar should surprise you. It's a inexpensive mod, and when you hit the corners, you'll notice how well it takes the curb. Also HPS makes a short ram intake which adds 7.1hp & 8.2 trq. No you're not gonna beat Civic Si or anything with 200+ hp but down low, and midrange you'll be right there ( almost door to door) now if your xB is a stick, you can go all out nuts ( motor wise ) and add a turbo. There is a YouTube channel called: " Scion xB Chaser Racer." His is a 08 too- and his latest goal is 600hp. His old setup, started at 383hp to the wheels where he beat Hellcats, Corvettes, 5.0 Mustangs, infinity, all in the 1/4 mile. ( it's on the end of the turbo intro video) then he bumps it up to 550hp then a piston failed. He works for a airline, and he did all of this in his garage.. Anyway, if you want your mind blown on what xB's can do, check ✔ out just a few of his videos. He knows what he's doing. Remember, our cars only weigh 3,089 pounds. My suggestion? Suspension and bolt on for now. You'll notice the difference.. Not unless you meant cosmetics, and there's a plethora of choices there.. Spoilers, carbon fiber gas lids, wheels, etc. Enjoy!!