i have a BMR kmember and UMI upper and lower A arms. all together it drops 34-35lbs. although theres really not much weight difference if any in the upper a arms, the better bushings provide better, quicker movement as opposed to the stock crap. i got an awesome ddeal on mine from a friend so i bought uppers and lowers.
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01' Z06 62k miles. Vararam, Longtubes, off road xpipe, tuned by me. Times TBA
2001 Corvette, Bolt ons , tuned 10.75@124.56 mph 1.38 60' Sold
1997 Saturn Sc1 5spd DOHC swapped
Bolt ons, decked head, stock intake cam on exhaust side, lotsa weight redux
13.22@102.32 mph 1.93 60'
12's on moda? One day
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