We are happy and proud to offer unique solution, allowing unbelievable seat drop for the OEM seat on seat rails with simple bolt on installation.
A short notice - this kit works for nearly all customers with the optional Fine Adjustment Kit. It offers easiest reversible installationa and fine adjustment of the drop. Unless you are really tall (and I dont mean you need to wear a helmet, but really tall) - this should be the go-for option.
As a short summary - the Jass Performance seat lowering rails are:
Each of the above features is unique. AND their combination - incredible, because you have road legal seat lowering solution - the seat integrity is not harmed AND the seat is adjustable on slider rails! There is no need for 5 point harness as required in some countries to be road legal in this case. AND you can daily drive your track car (helmet under a rollbar) or track your daily, because you have the space for it! AND you can share your car with your partner/friends, because it is adjustable. AND you can do the installation yourself, because it is EASY bolt on installation. No special tools or skills are required for the installation, you can save a garage visit and fees. And reversible means reversible. Anytime you decide to return the seat to OEM sliders or resell the Jass Performance Lowering ones - it is possible. Nothing changes to the OEM seat. AND of course all those simple things - you fit in, you can see the road, you feen planted, the ergonomics is finally matching and more you cannot live without:).
The Seat Lowering Rails come preset with -48mm (or 1.9") drop + full seat travel + simplified (literally *bolt on*) installation + Recaro seat compatibality.
The adapters installation is intuitive and easy. The seat installation in the car is as easy as when installing/removing OEM seat. Everything needed for the installation is included. Sold as full kit per side (seat). You need two for both seats.
We now offer on customer request a the Fine Drop Adjustment kit. You can vary the drop gradually from 33mm (1.3") to 48mm in 5mm steps. This corresponds to drops of 33, 38, 43 and 48mm. It consists of six aluminum shims to be exactly alligned under the adapter rails and are strongly recommended for drivers below 180cm (5.9"). Please consult the table below for more details.
In need of help, we have reliable business partners for the installation in UK - (AutolinkUK) and (TheMX5Restorer), USA (Red Hen Racing, situated in St. Cloud, MN), Netherlands (DeCabrioHoeve) and Germany (SPS Motorport). They are experienced and ready to help if needed.
Last words - from a tall driver (197cm) to fellow tall drivers - it took me 9 intense months to optimise this design and make sure not a fraction of the millimeter is further possible as drop. I gained a lot of experience with the possible room/comfort/ergonomy creating mods, which I am happy to share in short below. I will be updating the list regularly.
Sum-up of the Seat Lowering Potential in a Mazda Miata ND
You can vary the drop gradually from 33mm (1.3") to 48mm in 5mm steps with the Fine Drop Adjustment kit. This corresponds to drops of 33, 38, 43 and 48mm. It consists of six aluminum shims to be exactly alligned under the adapter rails and are strongly recommended for drivers below 180cm (5.9").
Mazda MX5 Model | |
ND (MK4) |
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Name | |