After the 45 days settle period (just guessing) with the S Tech Tein springs, my car was balanced more than b4, usually the driver side is lower than the other. But now it almost in balanced. 104.95 from ebay the money was well spent.

Funny thing is after the R flash, not to mention my car acceleration was improved but my 8 was acted quite agressive. Why? I can feel the tail sometimes shaking when turning (not stepping hard during corner or in any high speed turning). Those are stock rim and stock tire but I have to mention the car sometimes pull to the right a bit in slow speed 30-60. Maybe is the alignment. But as I said b4 the corners are now smoother to turn but not a lot. Now I am very happy to feel it was a RWD as my car was an automatic transmission.

My next project, K & N typhoon ....

 

to lazy to search but what is "R flash"??

 

Go to your nearest dealer.