I'm not entirely sure of the exact process to be honest. They guy who did it for me referred to it as a clone so I presume an image is taken of the original clocks and programed onto the replacement. My car is a 2005 the colour DIS clocks are from a 2007 model.
Try fit the S3 springs to the A3 or vise versa and come back to comment.
An S3 has a different suspension setup to an A3. The H&R quoted lowering amounts are specific to the S3 and have zero bearings in comparrison to an A3.
The dampers are better in KW V1 than the cheaper ones used in the AP's.
You get what you pay for is a paramount principle when considering coilovers.
Ive driven a considerable amount of cars with various grades of coilover and I can honestly say the difference is noticeable.
I dont know what you were trying to say there that got censored?
You never mentioned on the thread that you need to replace the arb's as a matter of necessity.
AP are an economy coilover by the way. Dont be deluded into thinking they are something they're not.
If I were you I'd spend you money on better coilovers and leave the arb's till the next time. H&R twin tube would be within your budget if you put the ap and arb kit money together. You'd have a quality stainless steel coilover, properly setup H&R springs with vastly superior Koni damping.
Thickness analysis is irrelevant when comparing brands that use different materials.
The idea behind arb kits is to nutralise over/under steer. In the S3's case its under steer.
Teamed with a proper suspension setup, fresh bushes and decent tyres either kit will be a great addition.