RuffRida

what size are your rims.... i have the stock 17s and im wondering if the super sport springs will lower it enough

envyxc350

I have 18's currently but getting 19's in a few weeks. i think our car looks best with 18-19'' rims.

Anthony_D

Installed H&R Supersport+5mm pads on my 2010 c350 4MATIC yes supersport on a 4MATIC...did alot of research on MBworld,didnt find annything so ended up by questioning a tech on justanswer dot com to learn that the coils on a 4Matic and a rwd where exactly the same dimension!

So here you go!First picture is 10 min after the instal...second is a week later when I put my C/F lip on. Sorry for the Iphone pics

mr inkredibul

Looking good. That is really low. How is the ride on the 4matic?

_c350_

so even if you have 4matic you can just get normal rwd springs and it will work with no problems?

Anthony_D

Thanks!For sure I lost some confort but it still rides pretty nice actually.

Yes sir! H&R part #52794-77

Boris0126

Hey Anthony I have the c300 4-matic and does the c350 4-matic have the same suspension and all wheel drive components like the c300 4-matic? Cause I want to get the H&R supersport springs for my car but tirerack said that they won't fit and I haven't seen any1 else do it. What do you think?

snarlingchicken

Seeing as the only difference between the two would be the engine, I'm guessing it would work fine for you seeing how it worked fine for him. But that's just what I think. I'm amazed that the springs work on 4matics. Couple of people on this forum are gonna be happy campers

Boris0126

Hey Snarlingchicken thanks for the response but I guess Im gonna wait alittle bit more and see what other people think or say

hemptation88

very nice, can we get some more pics

Anthony_D

I am 99% sure they are the same. I would try it without a doubt!


I don't have anny good one except for crappy Iphone pics...soon as I take some nice shots Ill share some with you guys!

kevink2

This thread is excellent for showing actual drops and providing some personal reviews. I going to show spring pics, and talk about each spring design.

Oem's are linear springs, but at high compression, non-linear rubber bump springs are engaged, making the combo progressive. Linear springs are usually prefered for maximum performance, like driver-ed track use.

Rubber Bump Stops



Usually still needed when upgrading springs.

H&R Sport Springs



Like OEM's, The H&R Sport Springs appear linear, but rears may be true progressive.

Eibach ProKit Install




The Eibach Pro Kit can be seen in this install thread. From the pics, springs are linear, with a few dead coils at the top of the rears to take up space.

H&R Super Sports



The H&R Super Sports are Dual Rate springs, designed for large drops and street use. They are some times calles progressive, but really just have 2 rates. Example: Front springs in box center .. all coils are active when cruising, but 2 or 3coils in middle of spring will contact each other and "bind" when heavily loaded, like outers when cornering or fronts on a hard stop. This reduces the number of active springs by 2 or 3, and spring rate will stiffen up 40-50% .

H&R Coilover Kit



H&R also makes more expensive kits with front coilovers and adjustable ride height (not sure if damping is adjustable).

These front springs are dual rate, and that may be part of why AZN_300 found them more comfortable than H&R Sports.

Thanks to all that took the time to take pics. Vendors often just show generic pics.


.

Boris0126

How are this springs for c300/c350? http://cgi.ebay.com/ebaymotors/Merce...item563093a3a4

Also are the supersport springs suppost to be red or blue color or it doesn't matter?

mr inkredibul

I would only use H&R or Eibach....SuperSports I know for sure are red, but in a lot of pictures they will just show general springs which a all different colors.

Boris0126

Hey inkredibul thanks ill stick with H&R and Im still debating if I should go with the sports or supersports? ....How is your car doing with the supersports?

mr inkredibul

Supersports are good. I only have 300 miles on the car though so I haven't pushed it at all but the ride is pretty comfortable.

Royce118

Guess we're on the same shoe. I cant seem to make up my mind as well. Oh well..

Boris0126

So this guy who sells sports and supersports on ebay just told me that supersports won't fit on the c300 4matic, He hasn't told me why but at the same time i don't know if he is right or wrong

mr inkredibul

He is basing it off of the H&R website but you will be fine. It has already been confirmed that they work with 4matics. If this is any consolation, i wsa running 350z aftermarket springs on my Infiniti G35 coupe for years with no problems because it gave me a lower drop. I even had lots of friends running 350z aftermarket springs on their G35 SEDANS no problem for years.

But yeah as an eBay seller he can't say they will work when the H&R website doesn't have the application for it.

Boris0126

Hey bro you are bringing confidence higher lol...The guy from ebay who sold you the springs he is the one who told me that they won't fit. This situation is killing me and Royce lol

mgmbh1

I am planning on getting the Street Comfort but hows the comfort level compared with the original suspension?

Thanks.

Blazeitup123

OK, all of you are voiding your warranty by installing lowering springs and don't care?

My service manager tells me that this voids warranty, is that true?!

I want springs so bad but can't do that right now. Thats the reason we got a new car.

eyemd

Lowering springs does not void your warranty. You would take a slight risk because they would probably deny any claims if there is a suspension related warranty issue. Doesn't happen too often though.

Blazeitup123

Well then, ill have to place my order right away. I can't wait to lower my GLK350

dadufal

I justs recently installed 19's with 265/30 tires. Will super sport set up work with that? I read on another tread that I would need 255/30 in order for it not to rub?