If you're planning under 400tq, I'd go for the SPEC clutch kit that re-uses the dual mass flywheel to keep the drivability and ease of use.
In my 3.8T, I've got a Spec clutch kit. I've had it for a little over half a year now, and still feels good. Customer service is also very good in case you have any hiccups during the install
I have a custom lightweight flywheel that was made from a Spec single mass flywheel... It does rattle, but not so bad that it's annoying. It revvs very fast compared to a regular flywheel... I must say that the 11lb fly' does make throttle response pretty quick and once used to it, it's a joy to drive.
I have a HPA specified SPEC 3+ with a single mass steel flywheel. Engagement is pretty much half way through total range of movement. I like it, now I just need to get use to the flywheel chatter when in neutral.
From personal experience, I'd stray from a lightened flywheel. I had a SPEC kit with a stage 1 and lightweight flywheel, and the chatter is not ideal for daily driving. This also isn't the smoothest operating motor, and the flywheel will remind you.
My starter was definitely messed up but so are the teeth on the SPEC steel flywheel.
I am experiencing an issue with my SPEC stage 1 clutch kit. It chattered right after install and I am talking right after start-up and during idle. We called spec within a week of the install and they told us to keep it in for the rest of the break in period (500 miles) and it should go away. Fast forward to now and it chatters WAY loud. I also have a grinding/slipping noise when pulling out on a really steep hill. I drive 45 miles each way to work (highway) and I have never raced my car before. i do not even know if i could deliberately destroy a clutch in 12,000 miles.
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The SPEC brand is registered in USA. Official website: http://www.specclutch.com/ .
In March 2026, PartReview recorded 7 reviews across 2 parts by SPEC. Average rating — 3.3 out of 5.
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