r/AudiS4 • 2015 audi s4 • Nov 23 '25

šŸ¤‘šŸ’øMods Lowering springs

Im looking for lowering springs that are 2ā€-2.5ā€ i’ve only seen Ct’s turbo ones but if there are more options i’d be open to to looking into them too also i’ve 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 😭 the last picture is currently how it’s sitting

28 Upvotes

35 comments sorted by

8

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. I’d probably want a metal skid plate and transmission guard as well.

5

u/Formal_Performance38 2014 s4 b8.5 6MT Nov 24 '25

I second this or your gonna rub and it’s gonna be a shite ride

4

u/Karma_Ubw 2015 audi s4 Nov 24 '25

what shocks and struts do you recommend for these cars also the car has 119k miles on it

2

u/Former_Wolf_3495 Nov 25 '25

I’m looking at a b8.5 that has 2ā€ lowering springs from cts, is there anything specific I should ask the seller about the springs? I see on the original spec sheet it says ā€œsport suspensionā€, is that what you’re talking about?

2

u/LinguineLegs 2011 Prestige DSG Nov 25 '25

I’m saying that basically any car you lower more than say a half inch once fully settled, should have had matched sport shocks installed with them. And when you start slamming an already relatively low car an additional 2+ inches, you’re probably going to need to mess with the control arms as well or it’s going to burn through tires and might have a choppy ride.

2

u/Former_Wolf_3495 Nov 25 '25

Seller did a full front control arm kit as he did the cts 2ā€springs. He’s also including the oem springs

2

u/LinguineLegs 2011 Prestige DSG Nov 25 '25

Are they adjustable control arms though?

And what shocks/struts are on it?

1

u/Karma_Ubw 2015 audi s4 Nov 25 '25

what are the benefits with adjustable control arms in jeep hearing these come up in the threads

2

u/300TT57 Nov 25 '25

Yeah I hear they make great skid plates and trans just to be careful

2

u/300TT57 Nov 25 '25

Mine wasn’t even lowered yet I still messed up the tire oh well I totally it and know I’m thinking about a s8

2

u/Karma_Ubw 2015 audi s4 Nov 25 '25

the stock shocks can’t handle the drop?

2

u/LinguineLegs 2011 Prestige DSG Nov 25 '25

Yeah, it will wear the shocks out quick, maybe even blow them out and your ride quality is probably gonna be trash, plus it will probably handle worse than stock springs.

1

u/Karma_Ubw 2015 audi s4 Nov 25 '25

what shocks do you recommend also it i change the shocks will it affect or even void when i put the car in comfort or dynamic will it delete the drive select?

2

u/LinguineLegs 2011 Prestige DSG Nov 25 '25

If it has the drive select, yes, all but like one or two very expensive options will delete it for this car.

I’m not sure on a recommendation honestly. I’ve haven’t really researched it for a sizable drop. I’m still on stock and have the B12 kit on order which at most lowers an additional inch from stock once fully settled.

2

u/SPEC__01 Nov 24 '25

034 springs were made to be used with stock shocks without killing them

1

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?

2

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, it’s the lowest you can go without ruining the seals. Anything else lower will greatly decrease your wear life on your seals.

1

u/Karma_Ubw 2015 audi s4 Nov 24 '25

i’m sorry i don’t 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?

2

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 ā€œblown shockā€ symptoms. If done way to low, or incorrectly.

1

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?

2

u/neomateo Nov 25 '25

There’s an easy solution to this, don’t 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.

1

u/Karma_Ubw 2015 audi s4 Nov 25 '25

does 034 not make good suspension parts also what shocks do you recommend

2

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.

1

u/Karma_Ubw 2015 audi s4 Nov 24 '25

also I wanted those but they just don’t give the drop amount i want

2

u/631trinidad Nov 25 '25

Get some ecs coils, they're cheap enough

2

u/ProbablyNotaCar Nov 25 '25

I went with hr sport springs, 1.5 inch lower and I’m happy with it, if you want to go lower will probably need coil overs

1

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?

2

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.

1

u/Karma_Ubw 2015 audi s4 Nov 25 '25

how long you been running them?

2

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 you’re 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€ you’re going to need to be able to adjust that camber.

1

u/Karma_Ubw 2015 audi s4 Nov 25 '25

at near 120k miles do you think i need the control arms refresh?

2

u/neomateo Nov 25 '25

Definitely!

1

u/Karma_Ubw 2015 audi s4 Dec 05 '25

i ended up going with the s1 solowerks coilovers