The Lambotek kit mentioned above is made to a far superior standard than the Decah kit. The dimensions of the steel are similar, but the lambotek mechanism contains hardened taper roller bearings and lubricated for life bushes. The Decah kit has metal to metal contact on the main pivot which causes them to wear at an incredible rate (they are not tight to start with).
The support rams that we use are specially designed to handle the day to day UK use. The Decah rams do not seem to last and we have seen them fail after only 2 weeks.
Decah kits only open to about 50 degrees which is OK for once a month show use, but beleive me is a real pain in daily use. The Lambotek rams have double seals (are correctly mounted for lubrication - the Decah ones do not fit and so are mounted upside down) and the lambotek rams also have dust sheilds which prolongs life.
The Lambotek MINI kits are also considerably more stable than the Decah Civic kits due to the way they are mounted.
The Decah kits were the original but they are without doubt the cheapest made kits on the market. They do a good job if you have a show car, but they are not built to the sort of standard a BMW customer would accept, and do not withstand daily use. You should note that we actually sell both kits, but only on the basis that the customer has the information above.
If you have any questions then please feel free to contact us.
www.lambodoors.co.uk