The B4 is now available for both ends.
Reviews of Bilstein parts For Business
Germany
Bilstein B8 Sport is a great strut/shock. I'm using the MKV version on my 2006 GTI paired with H&R Sport and the ride is great.
Used B6s front and rear along with GTI springs, resulted in nearly as smooth and predictable ride and vastly better handling.
I asked the same question you had several months ago and went all out by picking up Bilstein GTWORX struts and RCE yellow springs.
B4 are like oem with better control and rebound damping. B6 and B8 are the same except for length. B8 is for lowered suspension. Basically, if you going with R springs, do R B6 shocks and either shim the rear or get R variant rear springs from Europe.
B6s are probably too firm for stock springs but certainly usable if in spec for the spring length. I'd go B4 and they will be much better than stock due to better rebound damping which is the real problem with the stock ones, especially if I was keeping the stock springs.
Here’s what I’m doing about it; Spec 30 setup. H&R sport springs and Bilstein struts/shocks.
From what Ive read bilstein 51xx series are the best all arounders and cheaper than OME, but ome does slightly better in ride quality- at double or triple the price.
Just go with Bilsteins.
I'm using bilstein b4's and when I put it all back together I ended up with over a fist of tire to fender gap and am trying to figure out how to fix this. Previous ride height was like 2 or 3 fingers between the tire and arch.
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