12 votes
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.
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.
My starter was definitely messed up but so are the teeth on the SPEC steel flywheel.
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.
Write your review about flywheel SPEC
Help others - share your experience with this part.
Voted AGAINST engine oil RAVENOL on the rating page
The power steering pump OEM Volvo got the first review!
The brake pads OEM Infiniti got the first review!
The brake cylinder Raybestos got the first review!
For tires OEM Toyota already 25 reviews.
For tires IRONMAN already 25 reviews.
In the rating best fuel pump already 5 brands participate!
In the rating best antifreeze already 9 brands participate!
In the rating best engine radiator already 9 brands participate!
In the auto rating shock absorbers for Ford Ranger already 20 brands participate!
In the auto rating brake discs for Volkswagen Golf already 10 brands participate!
In the auto rating headlights for Volkswagen Golf already 5 brands participate!
For wiper blades PIAA already 100 reviews.
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
The brand is registered in USA. Official website: http://www.specclutch.com/.
In March 2026, PartReview does not yet have a formed opinion of SPEC flywheel. This part is not in the ranking due to insufficient reviews. You can help by adding a review for SPEC flywheel.
Currently there are 4 reviews and 12 votes. Average rating — 3 out of 5. Vote balance: 6 up, 6 down.
Users also evaluated the qualities of SPEC flywheel:
Unfortunately, there are no car-specific ratings for this part yet. You can help by adding a review and specifying your car.
