Springs / Coilover problem with softness in E46 Coupe

[Portalus]

Greetings,

I was trying to google my issue but I couldn't find nothink specific about my problem.
I'm ridding E46 328Ci from 99' and I've changed a OEM Suspension for MTS Techniek coilover system with back springs from Eibach SportLine. I'm allso using 18x10" ET15 Wheels at the back with 225/40/18 Nankang Tyrestretch with Spacers 15mm. The wheels sticking a bit outside the car and within bigger bumps or within 2nd or 3rd person in car - back tyres are bumping up my carroserie. I was trying to regulate back side bit higher but at this moment it's let's say highest point - everytink higher would be just too much (for a look).

The problem is I don't want to put up my car so far, I allso don't want to go with camber plates and I allso don't want to have my wheels inside - I just like them sticking out form the car.
I am looking for some1 who got a bit of experience in making a back suspension a bit harder. I was trying to find any other springs for coilover and nobody could say I will be much harder than thoose I allready having. When I was calling to H&R, gentelman on the line told me their springs would be harder than Eibach but he didn't know how much harder, so in one point it could help but in another point it could be just allmost no difference. He allso told me to think about rubber limiters for dampers but I've heard thoose can kill dampers very quickly.

Does some1 can help ? Do You know or do You have any experience with sport suspension systems companies what would be just way harder than Eibach SportLine ?

[Portalus]

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[Mless5]

You would need to run coil overs to pull off that fitment.

[Portalus]

Man, I am runing Coilovers and this is mine fitment.
I just want to know what company producing hardest springs.

[MIKYZZ4]

Maybe this place can help with higher spring rates:https://fortune-auto-direct.myshopify.com/

[Portalus]

Thank You MIKYZZ4. I've allready solved problem. I've found a rly hard springs for coiolver systems from company from Austria, called TA.