Competition Clutch 2006-2013 Mazda Miata 2.0L 6-Speed - Stage 4 - 6 Pad Ceramic Clutch Kit
Competition Clutch 10063-1620 is the Stage 4 six-pad ceramic clutch kit for the NC Mazda MX-5 Miata 2.0L with the six-speed manual. Our listing names the 2006-2013 cars, and the maker catalogs it for 2006-2015 NC six-speeds. It is meant for boosted NC builds, dedicated track cars and drag cars where an organic or Stage 2 disc has already started to slip, not for a stock car that only needs a fresh commuter clutch.
The NC came with two manual gearboxes: a five-speed on base cars and the Aisin six-speed on higher trims, both behind the 2.0L MZR four-cylinder. The clutch parts are not shared, which is why Competition Clutch builds this 10063 kit for the six-speed and a separate 10060 kit for the five-speed. The naturally aspirated engine makes 167 hp, and the factory clutch handles that easily, but a turbo or supercharger can nearly double the torque and the stock disc starts to slip under boost. Competition Clutch rates its Stage 4 Strip Series at up to a 250 percent increase in torque capacity over stock. That comes from a performance pressure plate clamping a sprung-hub disc with six ceramic buttons. The maker notes that its -0620 parts are the solid-hub versions, so this -1620 keeps a sprung center for a little driveline cushioning.
The trade-off is drivability. Six small ceramic pads engage almost on-off, so expect chatter pulling away in first and reverse, a short engagement window and more wear on the flywheel face. On a light roadster that is also a daily driver, that can get tiring quickly.
Log a full-throttle pull in fourth and compare engine speed with road speed. A slipping clutch shows rpm pulling away; a tune or boost problem shows low load instead. Make sure the pedal returns fully and the slave cylinder is dry, since a hydraulic fault can mimic a worn clutch. Check the bellhousing for oil from the rear main seal before you install any new disc. Our slipping diagnosis guide walks through these checks.
This kit fits the NC Miata 2.0L with the six-speed manual. It does not fit five-speed NC cars, the Activematic automatic, or earlier NA and NB Miatas. To tell the gearboxes apart, count the gears on the shift knob pattern; a five-speed car needs the 10060-1620 five-speed Stage 4 kit instead. Our listing covers 2006-2013, and if you have a 2014 or 2015 car or anything swapped, send us your year and VIN before ordering. More Miata clutch parts are in our rebuild kits category.
If the car sees street miles more than strip passes, the 10063 Stage 2 Steelback Brass Plus kit engages far more smoothly.
| Brand | Competition Clutch |
| Part number | 10063-1620 |
| Fits | Competition Clutch 2006-2013 Mazda Miata 2.0L 6-Speed - Stage 4 - 6 Pad Ceramic Clutch Kit |
| Vehicle fitment | Mazda Miata (2006-2013) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. It is built for the six-speed gearbox. Five-speed NC cars use the 10060-1620 Stage 4 kit.
The maker lists 2006-2015 NC six-speeds. Our listing names 2006-2013, so send us your year and VIN to confirm a later car before ordering.
No. The maker's specification table lists the flywheel as not included. Resurface yours or buy a new flywheel.
Usually not. A six-pad ceramic disc chatters on takeoff and wears the flywheel faster. It suits turbo, supercharged or dedicated track cars.
This -1620 part uses a sprung hub. Competition Clutch says its -0620 Stage 4 parts are the solid-hub versions.
The kit includes the release bearing, pilot bearing or bushing and alignment tool. Resurface or replace the flywheel, check the rear main seal and slave cylinder, and bleed the clutch hydraulics.
