E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Thread Tools Search this Thread Rating: Thread Rating: 1 votes, 5.00 average. Display Modes
Old 11-01-2007, 12:07 PM   #1
Registered User
Join Date: Aug 2005
Location: San Diego, CA
Posts: 3,005
My Ride: '99 323i
Bilstein Shocks Explained

To address recurring questions about Bilstein shocks, here's a quick overview of the 3 product lines they offer.

B4 Gas - aka Touring - This is twin tube gas pressurized shock with a black painted body. Per Bilstein, this is intended as a straight replacement for the OEM shock with the same damping force. The catch is, I believe this is intended as a replacement for the non-sport suspension OE dampers, rather than the sport suspension OE dampers. This is the one to choose if you do not have or do not want an OE sports suspension ride.

B6 Sport - aka Heavy Duty - This is a monotube gas pressurized shock with a yellow paint body. Per Bilstein, it is about 20% stiffer than the OE shocks, but as with the B4's it is uncertain exactly to which version of OE shock they are comparing it. My guess is that this is in comparison to the non-sport supension shocks, and it is somehwhat stiffer than the ZSP shocks and closely equivalent to the ZHP shocks, Bilstein states this shock is suitable for applications which lower the car up to 20mm (for reference, OE sport suspension lowering is 15mm). This is the one to choose if you have the OE sports or ZHP suspension and do not intend to change it.

B8 Sprint - aka Sport - This is essentially the same shock as the B6 but with a shortened body. Per Bilstein, it is suitable for lowering applications of up to 60mm, but really workd best in the 40~50mm range. This is the one to choose if you have almost any sort of aftermarket springs, which in almost all cases lower the car by at least 30mm.

All info sourced from here - http://www.bilstein.de/cms_website/english/Home/
jpr is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 11-01-2007, 01:43 PM   #2
Registered User
Join Date: Sep 2005
Location: Canada, eh
Posts: 2,789
My Ride: 02 Imola Red M3
Thanks bud. Another very informative post. A true E46 Fanatic!


Originally Posted by roronoah View Post
so 2004 bmw's dont come with a diff?
Hrvat is offline   Reply With Quote
Old 11-20-2007, 09:20 AM   #3
Registered User
Join Date: May 2007
Location: las vegas
Posts: 254
My Ride: 2000 328ci
thanks i'm going to go with the b8's
e4sixxx is offline   Reply With Quote
Old 11-20-2007, 12:17 PM   #4
Registered User
Join Date: Jun 2007
Location: Florida
Posts: 299
My Ride: Jet Black 325i
Great post! We need more like this! Thanks!
spivey3 is offline   Reply With Quote
Old 11-20-2007, 01:32 PM   #5
Registered User
Join Date: Oct 2003
Location: mars
Posts: 1,598
My Ride: rocket propelled 323
Send a message via AIM to darkmanlfe
Originally Posted by spivey3 View Post
Great post! We need more like this! Thanks!
use the search
Albert Einstein once said - Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.
darkmanlfe is offline   Reply With Quote
Old 09-16-2014, 03:06 PM   #6
Registered User
Join Date: Jul 2013
Location: Indianapolis
Posts: 3
My Ride: 2005 325Ci
Finally found an answer! I have one rear shock out and I just need a quick replacement for the time being and will do a suspension overhaul later. I have ZSP on my 2005 325Ci and didn't know if I should get sport or HD because I wasn't sure if the OEM sport springs were "lowered" or not. So I will go with a set of B6 for the rears (need to replace both at the same time anyway). Car has 98000 miles and springs are still good. Want to get a Bilstein B12 Pro-kit later. Or mabye upgrade to a 330Ci ZHP when I trade the 325Ci in.
2005 Alpineweiss/Hellbeige BMW 325Ci
2008 Alpineweiss/Korallrot 335i

Previously owned:
2005 Pontiac G6 V6 Base (sold) - my junker!
2007 Pontiac G6 GT (returned)
2000 Pontiac Grand Prix GTP sedan (sold)
1998 Pontiac Grand Prix GT coupe (sold)
1991 Mercury Cougar XR-7 (sold) - my first car
Whitetiger325Ci is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON

All times are GMT -5. The time now is 01:21 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
(c) 1999 - 2016 performanceIX Inc - privacy policy - terms of use