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Did the SCCA actually test and measure the SIR setup they've mandated for the E36 cars in ITS? I've read that a lot of experience was drawn from cars in GTL -- but was a real BMW used with the restrictor setup and run at a track and timed, or run at a dyno? What were the results? The stock air...

Does this mean I need to disconenct and plug my idle air valve? It pushes air right into the manifold, after the throttle. Or am I misunderstanding the meaning of "intake port"?

Who's making the Intake Restrictor that's now required for the E36 cars?

Exctly how do I mount these? Do they loop around the hard crash bar in the bumper? Or around the crash shock? If I cut a slot in the bumper skin, they'd end up twisting through if they were wrapped around the bumper shock. Is the idea to remove the four bolts from the bumper shock's mount...

I have a restrictor plate stuck in my throat. Ich lasse eine Begrenzerplatte haften in meiner Kehle.