[Aussie Mike]

Hi Les,

Yes it is a progressive jobbie. There is no MAF inside the air cleaner, the LS1 runs very well MAFless. The ECU gets enough data from the TPS, MAP and O2 sensors. The HSV GTS300 runs MAFless from the factory.

I'm pleased with the traditional look of the thing. Gives it a much more old school look.

Cheers