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      04-05-2018, 01:02 PM   #49
BunkerJ
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Drives: 2013 328i
Join Date: Mar 2017
Location: San Diego, CA

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Quote:
Originally Posted by ilivas View Post
That’s a little too much noise from a piston bouncing up and down.

Do you know how, a blow valve operates? The piston is actuated off vacuum and positive pressure from a vac line off the intake manifold.
You are welcome to live in denial and be arrogant. I understand how it works. If you want to argue with the engineers at GFB and other companies, be my guest. Otherwise, this is going nowhere. I presented you with the facts. You can take them or leave it.
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2013 F30 328i: MHI Big Turbo, GFB DV+, Mishimoto CAI, ER TIC/CP/Catless DP, AWE Touring Quad Exhaust w/ Resonated Midpipe, NGK LI Plugs, BM3 with PTF Stage 2 91 AGG Tune, Fuel-it Stage 2 LPFP, Solowerks S1 Coilovers, and DEPO/M-Sport Retrofit
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