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Do blow off valves need to be cleaned on S/C car?

That is why you get flutter. The Air to Air kit's intake design allows it to breath better, causing more air to vent, with no way of recirculating it back

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Old 02-21-2017, 07:55 AM   #9 (permalink)
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That is why you get flutter. The Air to Air kit's intake design allows it to breath better, causing more air to vent, with no way of recirculating it back into the intake to quiet it down. That little bosch valve cant keep up. Even if you could recirc it, it would still make a good amount of noise. The turbosmart with the stock spring will be even worse. You could buy the lightest spring (blue) and that will help or try trimming the current spring.

The only good way to get rid of it is to upgrade to a Tial QRJ.
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