Steve, I should be able to answer most of your questions.
I drove to Maryland from NJ to get the RCE springs and Perrin swaybar installed today.
It was a little over 4 hrs drive round trip but let me tell you it was more than worth it.
Prior to my review, I would like to thank Myles for answering all my questions and Mike for installing the springs and the rear swaybar.
Btw, the shop floor is so clean you could almost eat off it

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The ride is more than acceptable.
I had many cars with lowered/performance springs before including 04 STi with pinks.
If I may say, imho the ride had actually improved from stock.
None of the hard, bouncy ride associate with the typical springs are evident.
Although I'm no suspension expert, I assumed that the well matched spring rates with the bilsteins make the ride even better than the stocker.
Like yourself, I utilize my mr as a DD and had substantial reservation about installing any performance springs.
Another concern was the ride height.
I did not want a car where I would have to constantly worry about its ground clearance.
Once again, so far those concerns are unfounded.
Although my car has an APR CF lip, I have yet to encounter any scraping issue.
I was relatively satified with the stock mr suspension; however, wanted slightly lowered stance and better roll control.
Since my car is DD, I did not want too much degredation in ride quality at the same time.
I'm more than satified with the performance of these springs so far and highly recommend them to anyone with similar handling goal as mine.
Fyi, I did not get these springs for auto-x or roadrace.
I track my track prepped GSXR1000 and do not plan on roadracing my evo anytime soon.
Imo, bikes are cheaper to race and maintain and more involving than any car.
Btw, my shocks have approximately 14,000 miles on them.
Myles had also told me the initial batch came with its lettering upside down for the front springs.
They would be corrected soon.
Hope this helps

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