Handling upgrades for 2016 3 GT sedan?

[morkys]

I hear the strut tower braces don't make an enormous difference. Is there anything else I can do to reduce body roll? Rear and/or front sway bar upgrades?

[Dubcee]

Front and rear sway bars will help but you should adjust your springs and shocks to your liking first. Your choice of bars will vary depending on suspension setup.

[dope3]

For handling first thing would be tires imo. They're basically the most important thing about the car. Investing in performance tires for handling boost is worth it for sure (easy fix, no mods at all so it's fully stock, plus it looks/sits better especially with wider tires/rims; so you get better handling and better looks and they can help make for a more aggresive/flush stance while still being practical).

After that the logical next step would be lowering springs, but do not go overboard unless you plan on changing your shocks as well cuz lower springs mean stiffer ride/higher spring rate, so you need a shock to match the stiffer setup (if not a huge drop, you can keep the shock stock still; last thing you want is bottoming out). For minimizing body roll specifically, you want a spring with a high spring rate, but this sacrifices ride quality (bumpy ride!) lol... Ideally, coilovers would be the best bet cuz it's a complete setup with adjustable ride height and camber/toe (only important for track use where camber and toe really matter... for road use, it's just for show really with stance, but not practical, you'll just wear your tires needlessly). I would say best of both worlds without sacrificing driveability would be a good set of performance tires (wider than stock preferably for a considerable handling boost) and then 1" lowering springs... Any drop beyond that, you'll probably sacrifice ride quality/comfort even with matching shocks but you'll get better handling for sure.

Best way to put it is there is a trade-off between handling and practicality. I'd say experiment and see what setup works best for you. Let me know if you need more information!

[morkys]

For handling first thing would be tires imo. They're basically the most important thing about the car. Investing in performance tires for handling boost is worth it for sure (easy fix, no mods at all so it's fully stock, plus it looks/sits better especially with wider tires/rims; so you get better handling and better looks and they can help make for a more aggresive/flush stance while still being practical).

After that the logical next step would be lowering springs, but do not go overboard unless you plan on changing your shocks as well cuz lower springs mean stiffer ride/higher spring rate, so you need a shock to match the stiffer setup (if not a huge drop, you can keep the shock stock still; last thing you want is bottoming out). For minimizing body roll specifically, you want a spring with a high spring rate, but this sacrifices ride quality (bumpy ride!) lol... Ideally, coilovers would be the best bet cuz it's a complete setup with adjustable ride height and camber/toe (only important for track use where camber and toe really matter... for road use, it's just for show really with stance, but not practical, you'll just wear your tires needlessly). I would say best of both worlds without sacrificing driveability would be a good set of performance tires (wider than stock preferably for a considerable handling boost) and then 1" lowering springs... Any drop beyond that, you'll probably sacrifice ride quality/comfort even with matching shocks but you'll get better handling for sure.

Best way to put it is there is a trade-off between handling and practicality. I'd say experiment and see what setup works best for you. Let me know if you need more information!

I considered wider tires but stuck with stock tire size. I have winter tires but I don't like the idea of ever being stuck in winter without good tires, and don't want to always have to swap to the winter tires way too early just to be sure I am ok when the bad weather hits. Where I live, mild weather can last until December, or hit early November, likewise, spring can be variable in the timing of weather change also. With that in mind I bought what I figured were the best all season sporting tire that made sense for me. A set of Michelin Pilot Sport AS/3+ tires as my Spring to Fall tires. So far so good. I will look into your other ideas. Thanks.