I have the JCW doorsills in my garage waiting to install. I am debating installing on top of the old ones (if you have done this please post a picture) or removing the old ones (if you have done this please post)... I have heard the JCW sills are thinner and you can see/feel the bolts underneath.... any thoughts comments?

 

Good question. Recommend just putting them on top of the old ones. Last year I installed the JCW sills, but first I removed the old ones then cleaned the surface well. I wish I had put them over the old ones because they look/feel a little wavey because of the bolt caps underneath which on my car don't fit perfectly flush.

I just had my side skirts painted (brand new ones) and I'm planning to add the JCW sills again, but this time on top of the existing ones .

 

I installed mine over the top and they look great! Sorry no pics as of yet. Just line everything up and they will turn out great!

 

Removed old, Installed JCW...waavy graavy.

I'd recommend cleaning the original sills thoroughly and putting the JCW directly on top.

Theo

 

Here is a picture of the JCW Sill over the top of original.

 

How is it from the side? It doesn't stick up too much does it? They are pretty slim, but Murphy's law is that if it does stick up, my wife will catch a skirt on it

 

Nothing to catch on and no clearance problems.

 

on my car and I installed the JCW door sills. It is different in that situation because they adhere to a flat surface. No waves whatsoever.

 

I removed orginal sills and spent about 90mins removing residue from body. It will be much easier when I install new JCW sills to Aero sill.

Not a great picture of sill but you get the point.


Nice

 

I noticed the other day that the ripples in my door sills have flattened out... looks very nice!

 

As per JCW Garage (18th June) they should go on top of the stock sill's they will stick up a bit. or take cooper s off counter sink the rocker panel so the screws drop down more so you will have a flat sill...

 

I had heard that the sills are wavy when you remove the original ones, so I stuck mine over top of the existing sill plates.

 

Mine went over the stock ones as well, you can't tell.

 

Mine went over the top of the old ones-no problems and they look great!

 

Mine were wavy at first but have flattened out and look great!