I'm thinking of doing a LWF and a crankcase breather in my 05. I understand the flywheel will be noisy, especially at idle. I can probably handle that part, but I was wondering about the longevity of the LWF under normal driving conditions. I'm looking for better throtle response.
I'm not even sure a LWF would be an improvement on a GT3.

What brand would normally be the best. What vendor.

 

check in the gt3 forum but the gt3 comes with a lightened flywheel standard.

 

LWF should be an improvment over the stock flywheel. I like how it chatters and sounds but alot of people don't. Check one that has it and see if you could live with the noise it makes.

As I understand it, the RSR crankcase breather should always be used with the RSR rms seal.