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      11-11-2020, 01:18 AM   #1
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Kits compatible w/ APEX Arc-8

Good morning all,

I did some digging prior to this, bear with me.
I see what APEX posted in their fitment guide. My question to those on Arc-8s AND with an aftermarket suspension kit, what are you running? I am coming from the BMW PS. Great setup, for sure. However, wanting something more. I like the ride height, where it is now. I do not mind a little bit harsher ride as long as it helps me stay planted. I am already on solid mounts and a LWFW installed, so comfort is already out the window. Budget? Ideally below 2000 USD. I checked out a few kits within this thread: https://www.e90post.com/forums/showthread.php?t=1454433
I still cannot determine what would be the subjective best bang for my buck, within my budget. If you got the time, please throw me your 2 cents!

Thanks for your time. <3
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      11-13-2020, 10:51 AM   #2
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I run a square Arc-8 setup in 9", ET30 with 255/35/R18 all around. They work without issue on Koni Yellows and Eibach prokit springs. Doubt my setup is much different than the PS you're running now but figured you might appreciate the extra data point.
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      11-13-2020, 11:51 AM   #3
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Quote:
Originally Posted by Volasko View Post
I run a square Arc-8 setup in 9", ET30 with 255/35/R18 all around. They work without issue on Koni Yellows and Eibach prokit springs. Doubt my setup is much different than the PS you're running now but figured you might appreciate the extra data point.
Thank you so much for replying, I thought this post was going to get lost in the other threads... The setup you went with, does it feel stiffer than the PS setup (if you have driven on it)? I'm so daft coming into this realm. But I'm about to move into this part of the car since the drivetrain is practically complete in terms of modification. Again, thank you!
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      11-13-2020, 02:08 PM   #4
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Quote:
Originally Posted by Noir View Post
Thank you so much for replying, I thought this post was going to get lost in the other threads... The setup you went with, does it feel stiffer than the PS setup (if you have driven on it)? I'm so daft coming into this realm. But I'm about to move into this part of the car since the drivetrain is practically complete in terms of modification. Again, thank you!
I cannot comment about the feel vs. the PS setup as I've never experienced them first hand (or second hand for that matter). I came from the OEM sport setup that started to get pretty sloppy at the 180k km mark. Did a pretty comprehensive suspension refresh at that time. You can see the parts I threw at it in my garage pics. I went with the Koni yellows + prokit springs for their drop while maintaining great comfort and drivability. I've put nearly 100k on this setup and its still going strong. I was very happy with how much of an improvement this setup was vs. the OEM sport setup with regards to harshness. It was more comfortable yet handled and looked way better. I've done over 15 HPDE on this setup too and it's held up very well. Some people bitch about the progressive nature of the spring setup when tracking but I can't tell. I find the car VERY capable on the track and I'm not left wanting more out of my suspension (stickier tires on the other hand). I've heard that you can have Koni tune their shocks to specific spring combos if you buy direct from them, I'm not too sure how much more that would be but might be worth checking out.

Last edited by Volasko; 11-16-2020 at 09:55 AM..
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      11-13-2020, 07:40 PM   #5
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Quote:
Originally Posted by Volasko View Post
Quote:
Originally Posted by Noir View Post
Thank you so much for replying, I thought this post was going to get lost in the other threads... The setup you went with, does it feel stiffer than the PS setup (if you have driven on it)? I'm so daft coming into this realm. But I'm about to move into this part of the car since the drivetrain is practically complete in terms of modification. Again, thank you!
I cannot comment about the feel vs. the PS setup as I've never experienced them first hand (or second hand for that matter). I came from the OEM sport setup that started to get pretty sloppy at the 180k km mark. Did a pretty comprehensive suspension refresh at that time. You can see the parts I threw at it in my garage pics. I went with the Koni yellows + prokit springs for their drop while maintaining great comfort and drivability. I've put nearly 100k on this setup and its still going strong. I was very happy with how much of an improvement this setup was vs. the OEM sport setup with regards to harshness. It was more comfortable yet handled and looked way better. I've done over 15 HPDE on this setup too and it's held up very well. Some people bitch about the progressive nature of the spring setup when tracking but I can't tell. I find the car VERY capable on the track and I'm not left wanting more out of my suspension (sticker tires on the other hand). I've heard that you can have Koni tune their shocks to specific spring combos if you buy direct from them, I'm not too sure how much more that would be but might be worth checking out.
Thank you SO much for the insight! I want to get into HPDE very soon! :,)
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      11-15-2020, 07:19 AM   #6
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@Noir when I was researching suspensions about 3 years ago there were 2 that kept coming up as being the next step above the BMW PS. For around $2k-$2.5k there’s an Ohlins coil over set up and then there was the TC Kline set ups also.

From memory the Ohlins is a better all around set up and the TC Kline more track focused.
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      11-15-2020, 03:00 PM   #7
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Quote:
Originally Posted by Biginboca View Post
@Noir when I was researching suspensions about 3 years ago there were 2 that kept coming up as being the next step above the BMW PS. For around $2k-$2.5k there's an Ohlins coil over set up and then there was the TC Kline set ups also.

From memory the Ohlins is a better all around set up and the TC Kline more track focused.
Thank you so much, brother!!
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      11-15-2020, 06:13 PM   #8
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tetsuo111 ran the TC Kline set up on one of his e91’s. Might be worthwhile giving him a shout out to see what he thought.
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      11-17-2020, 08:08 PM   #9
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ST XTA. Best bang for the buck coilover setup that will ride decent as it's a good quality damper and have perform on track. Linear springs, camber plates, ride height adjustable, single adjustable shocks, and it's a KW damper in a ST body for under 1500$.
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      11-17-2020, 10:10 PM   #10
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Quote:
Originally Posted by Biginboca View Post
tetsuo111 ran the TC Kline set up on one of his e91's. Might be worthwhile giving him a shout out to see what he thought.
Quote:
Originally Posted by tsk94 View Post
ST XTA. Best bang for the buck coilover setup that will ride decent as it's a good quality damper and have perform on track. Linear springs, camber plates, ride height adjustable, single adjustable shocks, and it's a KW damper in a ST body for under 1500$.
Thank you so much for the insight. Your build thread was a treat!! However, the parts listed say it's for the m3... unsure if these can swap over.

Quote:
Originally Posted by Biginboca View Post
tetsuo111 ran the TC Kline set up on one of his e91's. Might be worthwhile giving him a shout out to see what he thought.
I'm gonna DM here in a second :,)
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      11-17-2020, 11:22 PM   #11
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Quote:
Originally Posted by Noir View Post
Thank you so much for the insight. Your build thread was a treat!! However, the parts listed say it's for the m3... unsure if these can swap over.



I'm gonna DM here in a second :,)
There is ST XTA kit for the E90 non-M's.
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