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Anyone run 305/30/R20 and lowered

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Old Jul 12, 2019 | 10:15 AM
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Peter Liu's Avatar
Peter Liu
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c63s coupe
Anyone run 305/30/R20 and lowered
Hi guys, I currently got ps4s on my new whhels for my c63, 265 front and 305 at the rear, but I realized the rear look a bit high so I'm planing to get kw h.a.s to lower the car, 10mm front and 15mm rear, I dont think there's a problem at the front but the rear feels really tight. so I just wondering if anyone who got 305 at the rear have any problem lowering the car?

THANKS!


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Old Jul 12, 2019 | 11:40 AM
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2010 c300 4matic , 2005 c230 kompressor (totaled) , 97' honda civic, 2018 c63s coupe
I just installed 305-30-20 a few days ago it’s nice and very tight what psi on tires are you running? Tight fit with the fender liner almost touching. 😅
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Old Jul 12, 2019 | 01:41 PM
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19 E63s, 23 M3 compX, B9 SQ5
I have 295/30/20 PS4 on rear and I'm pretty low, it rubs over big dips or speed bumps but I don't mind it. 305 would rub at my height for sure.

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Old Jul 12, 2019 | 09:00 PM
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c63s coupe
Originally Posted by slowc
I just installed 305-30-20 a few days ago it’s nice and very tight what psi on tires are you running? Tight fit with the fender liner almost touching. 😅
This is what the tyre shop gives me, how about yours , I haven't do any research on the c63 tyre pressure yet😂
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Old Jul 12, 2019 | 09:02 PM
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c63s coupe
Originally Posted by raudiace4
I have 295/30/20 PS4 on rear and I'm pretty low, it rubs over big dips or speed bumps but I don't mind it. 305 would rub at my height for sure.

Thanks buddy, that looks very cool, may I ask how many mm did you lower at the rear？
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Old Jul 15, 2019 | 04:48 PM
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19 E63s, 23 M3 compX, B9 SQ5
Originally Posted by Peter Liu
Thanks buddy, that looks very cool, may I ask how many mm did you lower at the rear？
I'm not sure on exact, but I'll get some fender to ground measurements for you.
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Old Aug 18, 2025 | 10:49 AM
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Did you end up lowering? I am in the same predicament now. Want to know if I can lower.



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Old Aug 18, 2025 | 11:21 PM
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2019 C63s AMG
Is your bumper a lighter color than the body of the car? The rear bumper
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2023 C63s Coupe, 2020 CLA 45,2018 C63 Coupe,2016 C43,2014 CLA45,2013 C350 Coupe,
Nice c63s Peter Liu, what do you call those small Extensions on the top of the rear bumper by the tires?
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