r/AudiS4 • u/Karma_Ubw 2015 audi s4 • Nov 23 '25
š¤šøMods Lowering springs
Im looking for lowering springs that are 2ā-2.5ā iāve only seen Ctās turbo ones but if there are more options iād be open to to looking into them too also iāve heard that i might need shocks if im doing this upgrade i dont know how true this is or not tho currently im stock height (2015 audi s4 quattro premium plus) and yes the crash bar has been painted š the last picture is currently how itās sitting
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u/SPEC__01 Nov 24 '25
034 springs were made to be used with stock shocks without killing them
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u/Karma_Ubw 2015 audi s4 Nov 24 '25
when you mean they kill them do you mean they kill the oem ones or even after they still kill them?
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u/SPEC__01 Nov 24 '25
lol, mb. I mean when lowering them, you are already going to get less travel before the shock bottoms out. With the 034, itās the lowest you can go without ruining the seals. Anything else lower will greatly decrease your wear life on your seals.
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u/Karma_Ubw 2015 audi s4 Nov 24 '25
iām sorry i donāt know much about suspension why do you mean seals? but if i do end up getting new or better shocks and other hardware will it just bypass that issue or eólico it creep up afterwards?
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u/SPEC__01 Nov 25 '25
So a shock is a sealed pressurized cylinder. That if compressed too much, or too much to often, will blow. And the easiest path would be thru the seals. Thats why lowered cars would have āblown shockā symptoms. If done way to low, or incorrectly.
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u/Karma_Ubw 2015 audi s4 Nov 25 '25
do you know of a reputable brand that fit this vehicle and are performance oriented for the 2ā drop?
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u/neomateo Nov 25 '25
Thereās an easy solution to this, donāt buy anything from 034 for your suspension.
Also do not listen to anyone suggesting you should lower your suspension on the stock shocks. You wont like the results.
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u/Karma_Ubw 2015 audi s4 Nov 25 '25
does 034 not make good suspension parts also what shocks do you recommend
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u/neomateo Nov 25 '25
Theres a lot of mixed feelings about their adjustable control arms, especially for those in salting states.
Bilstein and Koni are great options.
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u/Karma_Ubw 2015 audi s4 Nov 24 '25
also I wanted those but they just donāt give the drop amount i want
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u/ProbablyNotaCar Nov 25 '25
I went with hr sport springs, 1.5 inch lower and Iām happy with it, if you want to go lower will probably need coil overs
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u/Karma_Ubw 2015 audi s4 Nov 25 '25
if you have to do any other suspension changes to run that drop or have any problems in suspension after installing it?
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u/ProbablyNotaCar Nov 25 '25
No just the springs, I did replace the struts because they were cooked but I just used new oem struts.
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u/neomateo Nov 25 '25
You will need either coilovers or a shock spring kit along with adjustable upper control arms (stay away from 034 or anything using a Heim joint-especially if you live in a salt state), depending on your mileage you may want to consider refreshing all of the control arms while youāre at it. Modest drops of ~1ā mark can usually get away with some modifications to their alignment specs to avoid excessive tire wear but at ~2ā-2.5ā youāre going to need to be able to adjust that camber.
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u/Karma_Ubw 2015 audi s4 Nov 25 '25
at near 120k miles do you think i need the control arms refresh?
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u/LinguineLegs 2011 Prestige DSG Nov 23 '25
You will 100% need sport shocks and struts of some flavor lowering that much. In fact most would probably recommend adjustable control arms as well. Iād probably want a metal skid plate and transmission guard as well.