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I've used IPD lowering springs in 140's,120's/1800's,240's, and 740's.I have installed them in 850's,940,s and a V40 for customers (don't ask about the problems).In my opinion you have "the rice boy bounce" with all the IPD (lowering) springs I've installed.the best combination I used,in my 145 (NO laghing now) was 164 lowering coils in front and 240 overload coils in the rear.Bilsteins all the way around.I had KYB's in the rear at first and it was unbearable over speed bumps.It handled as well as any of the cars I put the lowering springs in but wasn't as bouncy and looked "stock". .As far as the 140 versus 240 rear springs,USE THE 240's! You WILL have to change to the 240 upper rear spring mounts but it is literally a 1 bolt "bolt in" and there are at least 3 different height 240 rear spring mounts available.Allowing you to fine tune your ride height.I sell the upper mounts for $20 a pair.
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