Thread: N20 GFB DV+ installed without moving or touching the turbo! +quick tutorial
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      04-19-2018, 12:02 PM   #101
BunkerJ
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Drives: 2013 328i
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Quote:
Originally Posted by ilivas View Post
I assume the spring is to prevent boost leak at higher boost.
Yes and also to ensure the lowest amount of boost escapes on shifting. Once you install it, you'll notice your shifts kick a little harder.
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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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