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Discussion Starter #1
Hi Guys,

I am new here and this is my first post.
I have a 2017 M3 Hatch GT Manual with close to 10K miles on it. Looking to do a major suspension upgrade soon. Still on stock 18" wheels but I intend to go inch up in the future.
I have read lots of threads and from what I gathered these are what I am looking at upgrading to

1) Eibach pro kit springs
2) Koni Special active reds
3) Progress RSB
4) GRP end links on ebay. 2 pairs for front and back.

Really need people with experience with one or more of these upgrades to let me know I am on the right path. 0:)

Thanks Y'all
 

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Hi Guys,

I am new here and this is my first post.
I have a 2017 M3 Hatch GT Manual with close to 10K miles on it. Looking to do a major suspension upgrade soon. Still on stock 18" wheels but I intend to go inch up in the future.
I have read lots of threads and from what I gathered these are what I am looking at upgrading to

1) Eibach pro kit springs
2) Koni Special active reds
3) Progress RSB
4) GRP end links on ebay. 2 pairs for front and back.

Really need people with experience with one or more of these upgrades to let me know I am on the right path. 0:)

Thanks Y'all
I would stick with 18in wheels but just a lighter and wider one. I don't think 18in vs 19in gives much extra handling or performance, and you lose a lot of comfort.
and 19in tires would be more expensive to replace and they don't last as long as 18in
 

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Discussion Starter #4
Hey Matt. Thanks. I'm in Portland, OR as well. Do you have a auto shop you trust?
 

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Discussion Starter #5
Thanks Dexterity. I've always wanted to inch up but maybe I'll rethink that now. Thanks. I know I'll have more options with 18"
 

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just did the eibach pro kit on my 18, its exactly what I wanted.
nice drop
better crisper handling
comfy ride
 

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Discussion Starter #7
I have read when you drop, it is advised to change the endlinks (shorter or adjustable) to compensate for the change in angle. Did you notice any change of endlink angles with the Eibach spring (those give you the minimum drop right)
 

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I have not changed my end links yet, I plan to do that with my RSB next year.
The angles are not "ideal" but totally livable.
 

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You didnt say if you want to maintain the the same ride comfort or better handling. Prokit will lower the car but wont change the handling much, beside the benefit of a lowered car. If you want to focus more in handling, Racing Beat would be a better choice but not as low, but your aligmeht wont be too much off. I have had both and i could hardly tell the difference betwern stock and Prokit, beside the look.

I also agree with staying with 18" but with 8" width. It looks much better and you still lose some weight per set.I would also stay close with stock offset (maybe 48 instead of 50).

Also let us know what you find out on the Koni SAS. Initially i thought it would be like the FSD but adjustable. Now Tirerack list it as non-adjustable.
 

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Discussion Starter #11
This is why I need to pick good brains. I haven't really considered racing beat springs. I am not the biggest fan of the ginormous wheel gaps but I will take better handling any day over looks. To my knowledge, the Koni SAS do not need to be adjusted. "Special Active struts are a smart suspension system that adjusts automatically and in a fraction of a second to road conditions and driving style."

I was looking at 18x8 wheels and the one I like (BBS SR) has a +40 offset. Would that work? (I know there is another thread for that question :))
 

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The wheel gap had to go on my car... I like my H&R springs paired with Koni FSD dampers. The ride is firmer, but still good for a daily driver.

I'm still on my OEM rims and tires, except I added 5mm spacers to make things sit a little more flush.
CK
 

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I was looking at 18x8 wheels and the one I like (BBS SR) has a +40 offset. Would that work? (I know there is another thread for that question :))
Offset value is more like personal preference, assuming no rubbing. (though i believe sticking with stock offset is better for your car mechanically). I think the 8" width alone will give enough of the flush look. Sticking out too far doesn't look good from the rear view, unless you have enough width on tires, or your car is low enough to cover it.
 

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Discussion Starter #14
The wheel gap had to go on my car... I like my H&R springs paired with Koni FSD dampers. The ride is firmer, but still good for a daily driver.

I'm still on my OEM rims and tires, except I added 5mm spacers to make things sit a little more flush.
CK
I have the appearance package and quite wary of going too low and scraping the front lip. So don't want to drop more than an inch tops.
 

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Discussion Starter #15
I was looking at 18x8 wheels and the one I like (BBS SR) has a +40 offset. Would that work? (I know there is another thread for that question <img src="http://mazda3revolution.com/forums/images/smilies/smile.gif" border="0" alt="" title="Smiley" class="inlineimg" />)
Offset value is more like personal preference, assuming no rubbing. (though i believe sticking with stock offset is better for your car mechanically). I think the 8" width alone will give enough of the flush look. Sticking out too far doesn't look good from the rear view, unless you have enough width on tires, or your car is low enough to cover it.
I will have to measure things out to make sure I don't stick out past flush. Thanks.
 

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Discussion Starter #17
Willtheyfit.com shows 18x8 +40 with 235/40/18 will poke out about 23 mm more than stock. I measured and I have about 30mm to flush so all is good :)
 

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Has anyone tried just lowering the back to level off the car. I have 18 X 8 RX8 wheels, and the front wheel well is filled pretty well. I also have a front spoiler and need to drive to the car in the winter during snow storms, I don't want to lower the front much more.
 

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This is why I need to pick good brains. I haven't really considered racing beat springs. I am not the biggest fan of the ginormous wheel gaps but I will take better handling any day over looks. To my knowledge, the Koni SAS do not need to be adjusted. "Special Active struts are a smart suspension system that adjusts automatically and in a fraction of a second to road conditions and driving style."

I was looking at 18x8 wheels and the one I like (BBS SR) has a +40 offset. Would that work? (I know there is another thread for that question :))
oh so thats what sas mean. sounds fancy lol I wonder how awesome is that. I just got regular koni yellows and i put it to near softest setting


Willtheyfit.com shows 18x8 +40 with 235/40/18 will poke out about 23 mm more than stock. I measured and I have about 30mm to flush so all is good :)

those are nice wheels, looks great, and yes that width of offset should work. it should be quite flush. and thanks for taking my comment about staying with 18in wheels. :thumbup1:
I am not sure if its the same for your car, but the rear looks less flush for my car, I got a gen2 sedean. I might get some 5mm spacers for the rear in the future to make it more flush with the front, but im only running 17x8 +45 offset
 

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Discussion Starter #20
oh so thats what sas mean. sounds fancy lol I wonder how awesome is that. I just got regular koni yellows and i put it to near softest setting





those are nice wheels, looks great, and yes that width of offset should work. it should be quite flush. and thanks for taking my comment about staying with 18in wheels. :thumbup1:
I am not sure if its the same for your car, but the rear looks less flush for my car, I got a gen2 sedean. I might get some 5mm spacers for the rear in the future to make it more flush with the front, but im only running 17x8 +45 offset
You made a good point with the 18s I will be saving money as well so win win :). Still undecided on the Eibach or Racing beat Springs though. I was also thinking of using dealer for the install. I don't want anything to go wrong since I am upgrading a whole bunch of stuff at once.
 
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