Quote:
Originally Posted by Jason@SportsCar
Interesting find... The bottom bar is the 23mm 2007ish sedan bar I have been using. Middle is the 24mm 2007 hatch bar. Top is the 24mm 2015 hatch bar, the kicker is the 2015 bar is tubular while the others are solid. This will drop unsprung weight, and due to a softer rate should free the car up and help put power down. Going to have to try it out.
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The funny thing about torsion is that it's almost entirely carried by the outer diameter of the shaft, so the rate shouldn't be significantly softer. I've tried looking at Toyota parts sites for a 2015, but most don't carry anything newer than 2014.