does anybody have a light flywheel and did you have any problems with it? i have this grinding noise and constant ratling niose and the car hiestates but when hit V tech it pulls hard can anybody help?

 

My car doesn't have a lightened flywheel but I had a similar experience in a car previously owned and it was the flywheel bolts. They can loosen over time. Or, they were not torqued or re-torqued properly. That may be a good place to look. How long since the aftermarket flywheel install?

 

Like one week or less