[kseyfi86]

Hey guys, is it true that our cars must have run flats for good handling on an otherwise stock suspension set up? I ask cause I bought the car with non-run flats and the car isn't what I'd imagine a BMW should feel like on the bends.

Maybe it's cause I transitioned from an S2k but my BMW seems to feel as though it was a used Lexus rather than other BMW's I've been in.

I have the sport package and recently replaced the thrust arm bushings, but that didn't do much...

Any thoughts or input on the topic?

[Antetokounmpo]

Originally Posted by kseyfi86

Hey guys, is it true that our cars must have run flats for good handling on an otherwise stock suspension set up? I ask cause I bought the car with non-run flats and the car isn't what I'd imagine a BMW should feel like on the bends.

Maybe it's cause I transitioned from an S2k but my BMW seems to feel as though it was a used Lexus rather than other BMW's I've been in.

I have the sport package and recently replaced the thrust arm bushings, but that didn't do much...

Any thoughts or input on the topic?

Your S2K will handle MUCH better than a stock E92, even with the sport package. It's a purpose built sports car versus a luxury sports sedan/coupe.

[kdbryce]

Originally Posted by bk335

Your S2K will handle MUCH better than a stock E92, even with the sport package. It's a purpose built sports car versus a luxury sports sedan/coupe.

+1

Coming from an s2k would certainly yield a feeling like that.

My advice would be to buy a new set up. Most are around $2k but, from what I hear, worth it.

[Gizm0]

What tires do you have on the car now? Switching from A/S to summer will make a huge difference.

[gary88]

The stock run flats are terrible, rough and no grip but at least they have a very crisp turn in. I replaced mine with pilot super sports and it feels like a totally different car, and since changing out the suspension to h&r sport/koni yellow recently the car very feels confident corners now.

[GMe90]

Absolutely not. The runflats suck. I replaced them with the Michelin Pilot Sport A/S 3, and the handling could not be better (ok, better with the Michelin Pilot Super Sports). The runflats are designed to help you drive to a tire service center when you get a flat. They are not really designed for performance, at least not the stock runflats.

[Zach1328]

Originally Posted by GMe90

Absolutely not. The runflats suck. I replaced them with the Michelin Pilot Sport A/S 3, and the handling could not be better (ok, better with the Michelin Pilot Super Sports). The runflats are designed to help you drive to a tire service center when you get a flat. They are not really designed for performance, at least not the stock runflats.

+1.
I've run the stock run flats, Hankook Ventus V12 evo's, Michelin A/S 3's, and Michelin Pilot Super Sports.

They all handle way better than the stock run-flat tires with the Super Sports leading the group by far. Turn-in with the PSS is just incredible! For a spirited driver I HIGHLY recommend the Super Sports. The A/S 3's are great tires too - they last longer and they offer a quiet and smooth ride.
The Super Sports offer almost as good of a ride but excel (way above and beyond any other tire I've run) in turn-in, stability, wet/dry traction, etc etc.

FWIW: The Super Sports are SO GOOD that my 535i with the PSS out-handled my smaller and lighter 335i on Hankook Ventus V12 Evo's (which are also top 10 ranked Max Performance Summer tires). The PSS are #1 and they're on top for a reason - they truly blew the competition out of the water with these tires!
Also, I never did a side by side comparison BUT I'm fairly certain my PSS' handled the wet better than my Hankook's or A/S 3's handled the dry.