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I have the Whiteline 24mm front and rear . Certainly keeps the car nice and flat when cornering and has helped to reduce some of the understeer . The ride is not too bad either
 

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The Profile one is done by Gary at ...................Profile lol aka Wolf. They're made in batches, not sure when the next lot will be available.

Fitting is pretty straight forward as long as all the bolts come out ok for the original one and you're able to jack up the rear of the car or get it on a lift etc. Fitted mine twice now
and the only bit that took me some messing was getting the metal saddles off the original arb bushes and swapping them onto the new one.
 

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QUOTE(jonn @ 8 Dec 2009, 12:08 AM) <{POST_SNAPBACK}>can i ask a silly question
where do they actualy fit on to the car
and dont say on the front and the rear



Jonn, it sits on the rear suspension frame and the ends are bolted to the joints attached to the rear lower suspension arms.

White Rectangle Slope Automotive exterior Triangle


The front one sits on the front subframe and again goes to the lower suspension arms.

Front one is subframe mounted but connects to the front suspension droplinks coming down off the suspension struts

White Motor vehicle Automotive design Font Auto part
 

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I have the Profile Adjustable RARB.

I'm not a "balls out" driver, but it certainly gives the impression of being tighter into the corners. Whether it actually IS or not, I couldn't tell you.

I fitted it myself in about an hour including jacking the car up onto axle stands.

Dead easy - I'm rubbish with spanners and I had no problem at all....
 

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Here's what Whiteline say about arb's;

"The fitting of larger sway bars (rear and in general) has two main effects, vehicle balance in terms of understeer and oversteer, and increased roll resistance. Both of these can provide increased overall grip levels that can be achieved by the vehicle.
As most factory vehicles are biased towards understeer, fitting of the larger rear sway bar will help in providing a more neutral characteristic in the handling at the limit. This is due to the increase in roll stiffness at the rear, which loads the rear wheels more unevenly and provides slightly less grip at the rear than previous.
At first this may sound sacrificial, however, as the rear end is resisting more of the roll, the front end resists less in proportion, leaving the front wheels more evenly loaded, therefore more available front end grip. In the end an increase in overall grip can be achieved by balancing the vehicle. A WRX or other front torque biased all wheel drive vehicle will benefit even more due to combined front end steering/traction demand.
Another effect of introducing larger rear bars is that the roll stiffness is increased, and chassis roll is reduced, this also reduces the effects of "roll camber". Roll camber is the variation in the wheel/tyre camber setting due to chassis roll, and during cornering usually results in the outside wheels gaining positive camber.
By increasing the roll stiffness and reducing roll camber effect, the wheel/tyre stays closer to its wheel alignment setting or optimal setting. This can increase the overall cornering grip available, as the wheel/tyre does not lose as much negative camber at the limit.
The balance (and grip increase) of the car could also be achieved by reducing the front sway bar stiffness, however its roll stiffness would be reduced and roll camber would suffer. This would lead to large amounts of positive camber being gained on the outside wheels/tyres when cornering. This would result in a wheel/tyre that would not be at its optimal camber setting at the limit of handling.
This could be remedied with large amounts of static camber to counter act the positive camber gain, however the resulting tyre where, and straight-line handling effects would suffer.
To maximise wet weather grip, a softer overall setting would be required from dry settings. The reason for this is that a wet track cannot give the same friction values as a dry track and therefore overall grip will never be as high as in the dry (hence the amount of chassis roll will be lower as well). The suspension can therefore be soften slightly until the camber setting start to be compromised due to camber roll.
So without reducing comfort, a Whiteline Sway bar will make your suspension system and tyres perform better, making the car more responsive while delivering more grip. Fitting a Whiteline Swaybar offers all round improvements in handling, tyre wear, comfort, safety and even load carrying. Its the best dollar for dollar handling improvement you can make! Whiteline Sway bars use the finest grade spring steel, are powder coated and supplied with high performance polyurethane mounting bushes in a DIY kit form, ready to simply bolt on."

"What applies to me and my vehicle?
Whiteline's simple sway bar guide to better handling:
Front Wheel Drive - increase the rear sway bar size
Rear Wheel Drive - increase the front sway bar size
4 Wheel Drive - increase front then rear bar size
All Wheel Drive - increase rear then front bar size"

I only have the rear 24 arb myself and I would recommend it to every St-driver. Less understeer and more grip from the front-end when cornering.
 

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QUOTE(vladSTer @ 8 Dec 2009, 12:19 AM) <{POST_SNAPBACK}>Fitting front could be a pain, subframe needs to be removed
Front reduces front roll naturally, sharpens the steering somewhat.

The front one can be done by dropping the sub-frame, but leaving it bolted to the car at the front. You can then slide the OEM one out and the new uprated one in. I'd recommend getting it done by a specialist outfit though as it is important to check the subframe is square and that geometry settings are correct.
 
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