I fitted a Grupp to the Tiefgruen today. I thought I'de share a quick clip with a side by side comparison of the standard intake vs a Grupp.
It's a nice subtle change in note (growl) over 3000rpm. Below that it's not really noticable and definatley not wide boy loud.
No performance difference on first drive but I wasn't expecting any really.
https://youtu.be/MMPYlw5tMZ0
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Grupp vs Standard Intake Vid - E86 N52 3.0si
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Street
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Grupp vs Standard Intake Vid - E86 N52 3.0si
Last edited by Street on Mon May 29, 2023 11:11 pm, edited 1 time in total.
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3.0si Coupe Sapphire Black Why have 1 when you could have 2!!
Serial Zed tinkerer. Always looking for the next Zed project
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SqerrNipz
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Grupp vs Standard Intake Vid - E86 N52 3.0si
Very nice, I had a Gruppe M intake on my old E36 328i Sport and loved the growl 
Proud owner of ‘Xavier’ - Maldive blue, 2004 3.0 auto. Heated/electric msports, style 107’s, gravity performance exhaust, E46 330i brakes, custom heated steering wheel, custom carbon intake, lots of other tweaks!
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Barty
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Grupp vs Standard Intake Vid - E86 N52 3.0si
Nice subtle improvement! Sounds like a BMW should
Four Alfa's and a Ducati later, I've turned to the dark side...
"Drive German, wear Italian, kiss French"
Z4: Tiefgrüen Metallic E86 3.0Si / Insta @bartsbuilds
"Drive German, wear Italian, kiss French"
Z4: Tiefgrüen Metallic E86 3.0Si / Insta @bartsbuilds
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DaveD
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Grupp vs Standard Intake Vid - E86 N52 3.0si
Sounds good. What’s it like in the car driving. Is it really loud? Hear the afe almost takes over the exhaust in terms of noise?
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