which of the two is more important the front or the back? which would you buy first? and with which one can you feel the most improvement on the car for autocross?????

 

I wouldn't get one without the other but I don't have the motivation to do this yet

 

no motivation... I want to have a flatter ride.

Yes always both.

 

If you're autocrossing under SCCA rules and want to stay in Stock class, you are only allowed to change the front.

 

if you just want more understeer i heard you should install only the front. and the rear only for more oversteer. this may be incorrect, just restating what i've heard.

 

That would cause that to happen, but I don't think you would be happy with the results. The bars are kinda made to work together and with an aftermarket front bar only, you would get way too much understeer. Maybe someone else can guide you to achive the combination you are looking for. I like a neuteral car.

 

If you are doing anything else but Stock Auto-X, change both. Furthermore, when you get both, get bars from the same manufacturer. I tried a Whiteline adjustable front with a Racing Beat rear, holy understeer, even with the front set to full soft.

 

I have run autox with both the stock and RB front bar. The RB front bar makes the car faster in slaloms, but has more understeer in slow corners. There is not yet a concensus as to which front bar is best for B-stock.

Only an aftermarket front bar is legal in b-stock. A rear bar would almost certainly be more beneficial.