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10/10ths · 06-05-2018, 07:33 PM

....this harmonic balancing is also why it is CRITICAL to use a dual mass flywheel like the OEM unit instead of an aftermarket single mass flywheel.

There are all kinds of weird harmonics that affect a vehicle when all these parts are spinning around as you go down the road.

By the way, I DO think the Fabspeed sounds AWESOME.

I just couldn't live with it on a real world, cross-country driving 986.

For a weekend toy? Sure! I'd slap one on.

But my car is used for cross-country vacation trips in addition to just cruising down to the local car show.

06-05-2018, 07:33 PM	#2
10/10ths "50 Years of 550 Spyder" Join Date: Jun 2015 Location: The Road Posts: 961	And another thing..... ....this harmonic balancing is also why it is CRITICAL to use a dual mass flywheel like the OEM unit instead of an aftermarket single mass flywheel. There are all kinds of weird harmonics that affect a vehicle when all these parts are spinning around as you go down the road. By the way, I DO think the Fabspeed sounds AWESOME. I just couldn't live with it on a real world, cross-country driving 986. For a weekend toy? Sure! I'd slap one on. But my car is used for cross-country vacation trips in addition to just cruising down to the local car show. __________________ 550 SE #310---"It's more fun to drive a slow car fast, than a fast car slow."