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      07-14-2015, 06:48 PM   #5
gtsussex
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Drives: SMB M3 CP with lots of carbon
Join Date: Jun 2013
Location: East Sussex

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Quote:
Originally Posted by jumperjohn View Post
Good write up!
For a family car i'm happy with the ACS springs but do you suggest the Birds ARBs will eliminate the rest of the car's wallow? I remember reading how with the birds ARBs the car is much firmer, is there a detriment to ride quality?
How much thicker are they compared with the M Sport arbs?
I'll answer this as I'm not biased in any way at all. The ride is still absolutely superb in comfort mode and yes it does eliminate a lot of the remaining wallow when on Sport setting - in Comfort setting it's still there (but everything is relative and I am used to absolutely no wallow RS suspension!!).

BUT this is based on having PSS tyres. I suspect it might be the wrong side of harsh on run-flats.
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San Marino Blue M3 Competition Package with Carbon tat, ACS RS suspension, uprated brakes, 'modded' exhaust and a weeny bit more power courtesy of JF Automotive; M235i Convertible with ACS Sports Suspension; Disco 5 HSE Lux
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