Here are the specs
http://www.buddyclubuk.com/damper-nplus.htm
The spring rates for mine are 10K front and 7K rear. There are 15 level of damper adjustability, and the height is adjusted independently of spring pre-load. I didn't purchase the top mounts as i already had energy bushings on the stock top mount. They are also monotube.
Buddy Club is a japanese brand, but their products must be made in Taiwan like almost all jdm brands (China, Hong Kong etc).
Some issues i had was the ride height. Due to the fact that i have 14inch wheels with shorter tyre profile (185-55- instead of 185-60) i had serious clearance issues, especially in the rear. The rear coilover would be too low on the highest position. So i decided to make some extra bushes installed in the top mount so as to increase the height. With these additives the height gives quite a good clearance. Of course it's to low even now.
Have a look at some photographs
These were before i make the extra bushings
The present height is a bit better but still it should be higher i guess.
The performance of these coilovers is outstanding. The more you tighten it the better the response, the handling and feedback. Turn in is amazing and extremely fast. The chassis response is a lot faster and more predictable. You know exactly when you are going to slide and you can act accordingly. Slip angles are significantly less and become even less as you tighten the suspension. Steering feedback and weight has also increased vastly.
What's the catch? The comfort has reduced and i've got even more bouncy ride. I can cope again but it could be a lot better.
More feedback to come...
A good price in the States is 700-800$ and a bit more in the UK
