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MCS coilover opinions e28 M5

Posted: Feb 13, 2025 2:15 PM
by NickP
I currently have bilstiens B8’s with lowering springs, and although I’m happy with the stance, the ride quality is a little too harsh for driving often. 

Stumbled upon Austin’s thread about the euro cool setup (Boge’s with euro springs) and I’m about to order the parts, but I just wanted the boards opinion on a last min option. 

I found that MCS makes 1 and 2 way adjustable coilovers, and I’m a big fan of their products for Porsche models. Just was wondering if anyone has any experience with that setup on their e28’s? 

I would have them valve it for the street, and I think maybe it’s the best compromise with performance and comfort. Not really a fan of ground control offerings. 

Any feedback or opinions would be awesome 

Re: MCS coilover opinions e28 M5

Posted: Feb 13, 2025 3:48 PM
by Technician117
I know of a guy that runs them on his track e28 M5 and loves them. Honestly you can't go wrong with MCS. I had them on my e39 M5 that I used street and track. Now they're on a dedicated track e39 M5. IMO if you can afford MCS's there should be no other consideration. LOL. That said, for a street only car they're probably overkill... but that's subjective - suspension compliance and tunability are very important for some people. Myself included, but at the same time, I probably wouldn't spring for them on my e28 M5 (no pun intended!). 

Re: MCS coilover opinions e28 M5

Posted: Feb 14, 2025 9:56 AM
by athayer187
MCS's are awesome - they make a fantastic damper.  A more budget friendly alternative would be to have your Bilsteins revalved to match your spring rate.  You've got to determine if your perceived harshness is because your spring rate is too high, or if it's because you're over/under damped.

What springs are you running?

Re: MCS coilover opinions e28 M5

Posted: Feb 17, 2025 1:48 PM
by NickP
Ive spent so much money on this car, that I might as well go all out and get the suspension right. I have eibachs currently. They aren't spine breaking harsh. Just a little too firm over city bumps when driving often, which I will be doing. It's just the tuning thats a headache. It took forever to get the setup just right on my 964. So some ptsd is trickling in.

I read some posts about ST springs but not sure how they compared to Eibachs. 

Re: MCS coilover opinions e28 M5

Posted: Mar 07, 2025 2:34 PM
by NickP
Just an update, my car has been at VSR1 for months getting a new interior installed, and we decided to go with KW coilovers, which GC top hats that are more forgiving on the street. Going to lighter spring rates and a custom valving. Goal is to have the car have a little lean and fun on the street. Not wanting this car to be too stiff for the street. 

I'll update once again when we install the system. 

Re: MCS coilover opinions e28 M5

Posted: Mar 11, 2025 7:49 PM
by 41magfan
I went thru multiple combinations from Bilstein HD and every spring from H&R , Eibachs, factory MTechnic and ST , then Bilstein Sports. Finally settled on Koni and MTechnic. Close second was Koni and ST… it was a dark day when Koni dropped us