Essentially you take the seats out of the car (4 bolts and 1 plug either side)
Then using a socket from the top unbolt the seat from the rail. (4 nuts)
Then you will see the mounting brackets are spot welded onto the rail. Remove them (drill, cut, twist, hammer.)
[optional step - take approx 1inch of the silver inner slider rail. Put it vertically in a device when you cut it with the 1” section at the top. Once cut then use some tape around the edge to stop ball bearings from falling out. Refit to rail]
I am also considering dropping my seat height. I am 6ft and my head occasionally rubs on the top but I could do with the seat sat a bit more upright. I cant decide between the 1" or the 2.5" drop.
I am a little worried that the 1" wont be enough but the 2.5" will feel like I am sat on the floor (even more so than an MX5 feels ha ha).
How does the 2.5" drop feel to you? Do you regret going so low?
Hi, i bought this kit to lower my NC seats as i don’t fit with the roof up and a helmet on…
The seats are the type with adjustable height, my question is about the procedure to remove them from the car. Do i need to disconnect power from the battery or not? I don’t really think they have any airbags in them and there should be a plug to disconnect the heating element. Anyway just wanted to ask whether there is anything i need to be aware of before i start taking stuff out, drilling & cutting?
If you have a 1.8 then you probably don’t have seat airbags, some of the 2.0 do, specifically the Sporttech & the higher models. Yes you should disconnect the battery, wait for a while, then push the brake pedal a couple of times to make sure any residual charge has gone. This should be in the instructions from Jass. When I fitted them to my NC I found the drop put the seats at too much of an angle so ended up getting some longer bolts and washers & fitting them at about half height. This was perfect for me (6’ 2.5")
Yea I’ve got the 2L sport tech. Thought to ask but I guess good practice to disconnect it just in case. I got the box today but not opened it yet to read what i need to do. Thanks for the tip
Hi, new member here looking for advise please even though I haven’t even got my car yet! I’m currently on the look out for a low mileage NC and know I’m going to need the JASS lowering brackets after sitting in one recently. My question is does anyone know which sits lower as standard, a non height adjustable seat (which I believe in only NC1 cars?) or a height adjustable seat set at it’s lowest setting?
I see the JASS brackets for the height adjustable seats drop it by 1.5" but the ones for the none adjustable seats can be either 1" or 2.5" drop. I’m trying to find out if the end result is the same because the adjustable seat sits lower to start, or the non adjustable seat allows for a greater drop presumably because of the lack of mechanism under the seat???
I think from memory the non-adjustable seat is lower by default than the lowest setting on the adjustable one. I don’t know if you’re aware that these brackets only drop the back of the seat leaving it at a more pronounced angle. I fitted a set to my NC2 height adjustable drivers seat and ended up using washers and longer bolts to bring the angle back up to about a 1" drop. This was because I didn’t like the angle it put the seat at.
