It would have to be very detailed and include details that perhaps people selling them would not be happy sharing, as it's 100% likely the competition will contact the same factory and get them made to spec. The amount of detail needed to compare them would be a challenge to put out IMO. You'd even have to get into materials etc, as 2 could be the same spec, but one could go rusty or bend, and one could be hard as nails...
VERY few places in the UK have stock and a proven range of products like Apex. They have an expensive spread of cars across the 200SX spectrum, and use them to develope new products, as well as listening to what owners want on here. What is with the negativity all the time?
People complain if stuff is cheap and from the far east, then complain when it's from the UK and expensive. There is not much winning
To offer good prices and a good range you need to have buying power, to do this you need to sell a lot and buy a lot, to keep the supplier happy to supply you, and the customers happy with the products you can offer.
Driftworks clearly do, and Japspeed, can anybody point to many other places that run cars on road and track, do constant R&D and keep bringing out new products at this rate, that are always getting better.
In order to keep companies that support the club, and the marque producing such ranges surely it makes sense to support them, not slate them. Equally there are proven products from these people, developed over time on cars we have all seen, by people we know and can speak to, what's not to like?
Bren has even said his earlier coilovers weren't up to the same level, so moved on from them, demonstrating both testing and listening to feedback. Not like an eBay trader who'll sell coilovers for £250 a time and not care a bit how they work, or not as the case may be.
Some of the comments on here are frankly scary... advice coming from opinions based on reading eronious reviews, or from people who get old battered wheels welding up because they're too cool to buy new ones that dont have the right badge. People who'll cut springs to get the right look, not buy a new spring of the correct length and still a balanced spring rate. People who have never been on track, or had cars with ride hights and wheels prohibiting even spirited driving, with suspension on the stops, preaching about what people should and shouldn't do, then argueing with somebody who daily drives a powerful 200SX, runs several on track and takes his own on track.
I could rant on, but I need to think about getting my head back down and doing some work instead of more ranting
It takes longer than I thought to keep this going...
For what it's worth I run Driftworks CS1s on my S15, and I love them. I have driven and been in cars with pretty much all listed options so far, and would say asking people who have put some miles on each of the various options is the way forwards. See how they're looking, if they're all siezed up, if they're knocking, if they have had to replace dampers, and if so how hard parts were to get, how the service was etc. These are other keys points to consider!