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      12-23-2008, 01:23 AM   #1
HP Autosport
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BMW Rear Guide Rod Kit - Better traction and handling

*Original guide rods were made to deflect under load, a bad thing for good handling and traction(in of the the product images you can see where the stock 335i guide rod can deflect and bow under cornering and acceleration loads)

*Aluminum guide rods are made of all aluminum, a lightweight component thereby reducing wear and tear on other, more critical parts (rear subframe, control arm bushings, etc) Each guide rod weighs just over 1.5 lbs making for a total of ~3 lbs for both parts (stock guide rods weigh 2.1 lbs each or 4.2 lbs for both). A weight savings of over 1.2 lbs from the rear suspension.

*Bushing with a rubber material at one end is replaced by a sealed joint for deflection and noise free operation. Bushing deflection is unwanted because it leads to excess suspension movement. This is bad for handling and traction due to constant alignment changes. Plus, any power from the engine can take longer to get to the ground because it has to windup the bushing first.


The traction link is no brainier. You will have better traction and braking and more stability and you will feel this under acceleration. The traction link is actually a tuned spring so it is designed to deflect a lot under load which is really bad for the suspension control. This is the most important link to replace.

Retail: $412.80

$359.13

Order here:

http://www.hpashop.com/BMW-Rear-Guid...kit-e9x-m3.htm
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Last edited by HP Autosport; 02-09-2012 at 02:16 PM.
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      12-23-2008, 02:52 PM   #2
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Going through the rear suspension you'd be shocked to find out that some of those pieces you can flex with your hand. Very very soft stuff. These Viagra rods should really help out our race car!

Cant' wait!
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      12-23-2008, 08:32 PM   #3
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is this direct bolt on? How hard is install? Any extra components needed?
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      12-23-2008, 08:44 PM   #4
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Quote:
Originally Posted by UpGrade+ View Post
is this direct bolt on? How hard is install? Any extra components needed?
10-15 minutes per side after the wheels are removed. I did it in 5, on a lift with power tools!

Simple hand tools will be all you need. No additional components are needed, unless you feel like doing the upper links too!

http://www.hpashop.com/product.sc?ca...3&productId=60
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      12-23-2008, 10:08 PM   #5
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Hmm, seems like a worth while upgrade, but ~$400?? Why so much compared to the upper links and front suspension parts?

Is it possible to get a package deal if you got the following:

Front lower wishbone kit + Regulating rod
Front tension rod kit
Rear subframe bushings
Rear guide rod Kit
Rear upper link kit

???
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      12-23-2008, 11:42 PM   #6
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Quote:
Originally Posted by Dangerlucas View Post
Hmm, seems like a worth while upgrade, but ~$400?? Why so much compared to the upper links and front suspension parts?

Is it possible to get a package deal if you got the following:

Front lower wishbone kit + Regulating rod
Front tension rod kit
Rear subframe bushings
Rear guide rod Kit
Rear upper link kit

???
I'll put a package together in the next few days. Please check our website for details.
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      12-25-2008, 09:07 PM   #7
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I'm a bit confused at your offerings for the front suspension on your website. It just seems like there are three things priced at 3 different levels that talk about the same thing. I'm assuming the $450 front control arm kit is the combination of the front wishbone kit and the front tension rod kit? I'd be very interested in a big package deal.

It seems that I am feeling the need to really invest in this car and be happy with it. My only problem with the car right now is all suspension related.
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      12-25-2008, 09:31 PM   #8
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Quote:
Originally Posted by Justin(OKC) View Post
I'm a bit confused at your offerings for the front suspension on your website. It just seems like there are three things priced at 3 different levels that talk about the same thing. I'm assuming the $450 front control arm kit is the combination of the front wishbone kit and the front tension rod kit? I'd be very interested in a big package deal.

It seems that I am feeling the need to really invest in this car and be happy with it. My only problem with the car right now is all suspension related.
Hi,

Sorry for the confusion.

I have listed the tension rod kit and lower wishbone kits by themselves, then the two together. Some people choose to piece meail and some wanted to do both while they are at it.

Rear kits are also available.

Harold
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      01-05-2009, 09:23 PM   #9
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Has anyone installed these yet? If so, is it really that noticable or would getting swaybars be a better first choice for suspention upgrades? I don't really wanna do springs/shocks or coilovers but would like the car to do some autox a little better. Thanks

-Brian
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      01-06-2009, 12:57 AM   #10
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Quote:
Originally Posted by Bdh821 View Post
Has anyone installed these yet? If so, is it really that noticable or would getting swaybars be a better first choice for suspention upgrades? I don't really wanna do springs/shocks or coilovers but would like the car to do some autox a little better. Thanks

-Brian
We better let a another party make the comment as some of you may think my review will be somewhat biased.

You may also want to check on E90post for reviews on these guide rods as many sets have sold since they were available from our web store.
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      04-05-2012, 02:29 AM   #11
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Hey Harold, would the components be compatible with the E88?
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      04-05-2012, 12:47 PM   #12
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Hey Harold, would the components be compatible with the E88?
Yes.
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      05-25-2012, 02:04 PM   #13
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BMW M3 rear guide rods

These are good in stock and ready to ship!
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      08-07-2012, 03:35 AM   #14
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Quote:
Originally Posted by HP Autowerks View Post
Need more rear traction and can't afford a LSD, get these first!
I bet a lot of people don't even think of replacing those flimsy soft link with these M links.
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      08-07-2012, 10:46 AM   #15
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Quote:
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I bet a lot of people don't even think of replacing those flimsy soft link with these M links.
You are right. The stock one is very flimsy and is actually heavier as well.
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      08-28-2012, 11:02 AM   #16
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Are these the same as rear sway bar links? Thanks
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      08-28-2012, 12:53 PM   #17
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Quote:
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Are these the same as rear sway bar links? Thanks
No, these are part of the 5-link rear suspension on the late model BMW's. These arms controls the axle torque.
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      08-28-2012, 02:16 PM   #18
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Ohh, I guess I havent been under the car and looked at then rear end yet. Thank you
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      11-10-2012, 04:47 PM   #19
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Fit in 135i N55 2011 ?
Check your PMs
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      12-03-2012, 02:51 AM   #20
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Fit in 135i N55 2011 ?
Check your PMs
Yes!
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      12-23-2012, 10:06 AM   #21
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since we were talking about this kit here... http://www.1addicts.com/forums/showt...1#post13198987
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      12-23-2012, 10:48 AM   #22
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Should the car be realigned after installation?
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