Is200 Extractors

[VoRtExX]

I'm wondering if anyone here had tried to DKNE extractors for the is200, or have changed to any other after market extractors, is it worth it? Whats your view on it,

[DonGreen]

Sorry to resurrect an old topic, but I am considering extractors for my IS300. eBay Item 231476299682

Anyone have experience, positive or otherwise, with fitting extractors? With or without a complete exhaust system upgrade?

[DonGreen]

As well, while u have the bits off the top of the motor (throttle body etc) I'm thinking about getting the intake manifold ported and polished. Has anyone done this, and what improvements, if any, has it made?

Also, can anyone in Adelaide point me to a reliable workshop to get the porting done?