MPSS + Eibach Pro Kit: Anything More I should do?
 

Hey everyone!
So I've recently just put on a set of MPSS in stock sizing 215/45/17 I believe on stock tires. I was previously already on Eibach Pro kits but I was wondering what more could I do on my car to improve the overall cornering abilities? When I had stock tires and used to do some spirited driving the tires would slide out too easily and I wouldn't enjoy much of that. Now with the grippier tires I do love that extra grip but I've read on the forums that more grip = more body roll? I kinda noticed this on my car on a very tight corner but It was only because I just read about the issue and actually noticed it. I've heard about upgraded sway bars but is it necessary? I'm not an autox or track person but I would like to experience. Is it worth investing the money towards a sway bar or new bushing or should I leave it as is? Thanks!

What you should consider now is are you satisfy with the way the car handles and rides (comfort). A setup that is good for auto-x and track may not be the best for street / daily driving.

If you are happy with the way the car handles just leave it as is. The same body roll that you experience in corners also help absorb the bumps on uneven pavement.

Besides comfort over bumps less body roll may not be ideal for uneven surfaces. You will 3 leg it up more driveways than you do currently (if you do at all). It may cause wheel lift on uneven moutnain roads and cause traction problems instead of helping overall traction. It all depends on the size of the bars, tires, spring rate, etc.

Is there something you don't like about the cars handling? You can drive pretty damn fast on stock tires and especially PSS before they break away with smoth inputs. Since you enver noticed it until you read about it it could all be in your head because IMO this car has almost no body roll even from factory compared to many other car. Bushings tend to help get rid of slop and allow power to be put down more effeciantly due to less slop in suspension pieces. I have the Whiteline erar subframe bushings, Whiteline rear Uper control arm bushings, and TiC steering rack bushings and love the response I have now vs. before. This also came at the cost of a stiffer ride and I can definitely feel bumps more. Sways will be the very last thing for me once I want to get competative at Autox, otherwise they aren't super neccesary IMO. mostly they are used to fine tune balance after the rest of the suspension is entirely sorted.

Koni Yellows or Bilstein B8s would give you a nice change in corner handling and pair well with your springs. Adding camber to the front with bolts and an alignment would be a huge improvement, just tell them to max out the camber in the front. The body roll is fine, I wouldn't worry about it. The bushings most people go with are rear subframe inserts and and diff inserts. I have heard great things about the Whiteline Anti-Lift Kit and rear camber bushings, but haven't used either.

Assuming this is your daily driver and main source of transportation, I'd leave it as is.

If you're not going to any performance events or frequent spirited driving runs, the way you have it right now is perfect.

The more aftermarket parts there is, more of a chance for things to go wrong! Enjoy it how it is!

Agreed with this guy. For the street, the body roll your feeling isn't slowing the car down. If you were to go with stiffer springs thank Pro-kit, then you'd probably want to change the shocks to or switch to a set of matched coilovers. All of that might not actually make the car faster as the stock suspension with upgraded tires like you added is a very capable setup.

You might think about spacers if you feel the wheels look a bit too tucked in. That will help the looks but do nothing for performance.

I'd say your next step should be brake pads + fluid and seat time at your local track or AutoX.