Eibach Pro Kit and Tire Wear
Thread Starter
Junior Member
Joined: Apr 2020
Posts: 24
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From: Seattle, WA
C63S Amg
Eibach Pro Kit and Tire Wear
Hey guys, im thinking about lowering my car w/ the Eibach Pro Kit but i keep hearing people say tire wear and the alignment will be messed up. So my question is... if i just drive this car as a daily driver and not really track it will it really wear out tires that fast? and when people say under 12k miles.. is that cause you track it? or is that normal day to day driving. sorry im such a noob at this.
thanks!
thanks!
Member
Joined: Mar 2018
Posts: 124
Likes: 19
From: Berkshire, UK
2019 C63s Coupe
I have them on mine and the wear has been even. I think 12k miles on a set of tyres is optimistic regardless whether you have lowering springs or not. Unless you're really driving like a Prius owner - In which case you probably should have bought a Prius. 
Thread Starter
Junior Member
Joined: Apr 2020
Posts: 24
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From: Seattle, WA
C63S Amg
every 3k? holy crap bro. is that daily driving? or you taking it to the track and doing insane donuts.. i bought my car with 14k miles stock. and the tires still good to go. the guy that owned it before only drove it on the weekend lol
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Super Member
Joined: May 2011
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From: Vancouver
2018 e63s edition 1
I'm curious if the guys who say they have even tire wear are looking at the very inside edge on each of the fronts. Getting down on your knees and looking at the tread, it might appear that they're wearing evenly until you see your car on the lift and notice the inside edge of each tire is eaten away. Not saying that is what is happening, it just can be deceiving .
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MBWorld Fanatic!
Joined: Mar 2008
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C63s Cabriolet, BMW M4, Civic
The factory front camber spec. Is around -1.5. My guess, the Eibach pro kit probably only drop about 1”. So that might be not enough to mess up your cambers. I has my BMW M4 lowered with Eibach pro kit drop to about .8”. I took the car in BMW dealer to do the alignment and it didn’t have cambers issue at all.
Member
Joined: Mar 2018
Posts: 124
Likes: 19
From: Berkshire, UK
2019 C63s Coupe
I'm curious if the guys who say they have even tire wear are looking at the very inside edge on each of the fronts. Getting down on your knees and looking at the tread, it might appear that they're wearing evenly until you see your car on the lift and notice the inside edge of each tire is eaten away. Not saying that is what is happening, it just can be deceiving .
Senior Member
Joined: Oct 2013
Posts: 282
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2017 C63S Coupe
Hey guys, thought it would be helpful for somebody that has a C 63, with lowering springs, and is about to install the K-mac kit this coming Tuesday at the dealer to chime in. My H&R springs claim to lower the car .8 inches. That is the perfect drop and I love it so far. That said, the amount of negative camber is beyond noticeable (I just lowered it recently so I don't mean tire wear, I mean visibly noticeable tilting in at the top). I'll know for sure Tuesday exactly how much but anyone that says abnormal tire where won't occur without the camber kit is definitely mistaken. Without any adjustment bushings, a .8 inch drop makes the negative camber, meaning the top of the tire pointing inward, on both front and rear very, very noticeable. At over $400 a tire including installed for a PS4 Michelin, the kit just made sense to me. I'll post next week what my exact alignment specs were before and after adjustment with a new kit installed. Hope this helps some
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Joined: Jun 2014
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From: IL
19 E63s, 23 M3 compX, B9 SQ5
I'm curious if the guys who say they have even tire wear are looking at the very inside edge on each of the fronts. Getting down on your knees and looking at the tread, it might appear that they're wearing evenly until you see your car on the lift and notice the inside edge of each tire is eaten away. Not saying that is what is happening, it just can be deceiving .
MBWorld Fanatic!
Joined: Mar 2008
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C63s Cabriolet, BMW M4, Civic
Not daily driving, it's a weekend car. No donuts and no tracks, just regular driving on the street. Mine was lowered on KW HAS, i could visibly see the negative camber in front, and the allignment shop could not get it close to factory. I drive the car for couple months and my front PS4s were completely down to the wire on the very inside of the front tires. ~3K miles. They were new PS4s that I had bought for all 4 corners, the rear were still fine I did not have any accelerated wear on the inside of the rears. I had K-MAC kit installed, and the alignment specs were able to hit factory setting and I'm pretty low.. Now I have even wear on the front tires going on 7K miles no issues.
Exactly this, i never noticed till I had my car on the lift at the dealer for service and they said you need new front tires, the inside are down to the cords... In 3K miles i never noticed because the outside tread was almost new..
Exactly this, i never noticed till I had my car on the lift at the dealer for service and they said you need new front tires, the inside are down to the cords... In 3K miles i never noticed because the outside tread was almost new..
Super Member
Joined: May 2011
Posts: 883
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From: Vancouver
2018 e63s edition 1
Hey guys, thought it would be helpful for somebody that has a C 63, with lowering springs, and is about to install the K-mac kit this coming Tuesday at the dealer to chime in. My H&R springs claim to lower the car .8 inches. That is the perfect drop and I love it so far. That said, the amount of negative camber is beyond noticeable (I just lowered it recently so I don't mean tire wear, I mean visibly noticeable tilting in at the top). I'll know for sure Tuesday exactly how much but anyone that says abnormal tire where won't occur without the camber kit is definitely mistaken. Without any adjustment bushings, a .8 inch drop makes the negative camber, meaning the top of the tire pointing inward, on both front and rear very, very noticeable. At over $400 a tire including installed for a PS4 Michelin, the kit just made sense to me. I'll post next week what my exact alignment specs were before and after adjustment with a new kit installed. Hope this helps some
Can someone post a link to what is needed from kmac? I'm just curious what the cost is (and might order).
Thread Starter
Junior Member
Joined: Apr 2020
Posts: 24
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From: Seattle, WA
C63S Amg
I just lowered the car today on these Springs. I don’t think I’m gonna get the kmac bushings. The springs don’t even lower the car that much. The car still looks stock to me
Thread Starter
Junior Member
Joined: Apr 2020
Posts: 24
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From: Seattle, WA
C63S Amg
On the amg it only drops 0.8 in the front 0.4 in the back its not much. my tech guy who installed it said theres not even a need for an alignment because it didn't drop that much. but he would just do it just cause
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2019 AMG GT R
I just double checked. those numbers i posted are for the coupe. hm so it looks like the coupe gets dropped significantly more than the sedan in which case id imagine a camber kit would become necessary
Thread Starter
Junior Member
Joined: Apr 2020
Posts: 24
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From: Seattle, WA
C63S Amg
oh wow that totally makes sense. people that say they dont need kmac bushings are probably sedan owners. and people that say tire wear is significant are probably coupe owners.. LOL
