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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > N54 Inlets Question



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      08-15-2020, 01:01 PM   #1
JabsD
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N54 Inlets Question

Currently have silicone 1.75” upgraded inlets and I will be upgrading my turbos in a couple weeks. The turbos says 2” inlets needed but was wondering if I could possibly stretch the 1.75” inlets over the turbos. May be a dumb question but please let me know. Thanks!
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      08-15-2020, 01:16 PM   #2
Aceway
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Quote:
Originally Posted by JabsD View Post
Currently have silicone 1.75” upgraded inlets and I will be upgrading my turbos in a couple weeks. The turbos says 2” inlets needed but was wondering if I could possibly stretch the 1.75” inlets over the turbos. May be a dumb question but please let me know. Thanks!
No, silicone doesn't stretch. Buy adapters or the correct size inlets.
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      08-15-2020, 01:54 PM   #3
HKD126
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Quote:
Originally Posted by JabsD View Post
Currently have silicone 1.75” upgraded inlets and I will be upgrading my turbos in a couple weeks. The turbos says 2” inlets needed but was wondering if I could possibly stretch the 1.75” inlets over the turbos. May be a dumb question but please let me know. Thanks!
No.
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      08-15-2020, 03:41 PM   #4
mweisdorfer
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Quote:
Originally Posted by JabsD View Post
Currently have silicone 1.75" upgraded inlets and I will be upgrading my turbos in a couple weeks. The turbos says 2" inlets needed but was wondering if I could possibly stretch the 1.75" inlets over the turbos. May be a dumb question but please let me know. Thanks!
VRSF sells 2" inlets for about $200.00

VRSF IMO are the best 2" outlets; they also sell for about $175.00.
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      08-16-2020, 10:05 AM   #5
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Look into RB turbo inlets for best quality and fit. They come with nice fittings for stock pcv heater element and stock DV connections.
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      08-16-2020, 11:29 AM   #6
HKD126
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Originally Posted by Jeef View Post
Look into RB turbo inlets for best quality and fit. They come with nice fittings for stock pcv heater element and stock DV connections.
I agree with this. My RB inlets are fantastic.

The shop that did my turbo install recommended against the VRSF outlets. Said they installed enough of them and never fit all that great and usually had issues. I have no direct experience with them however. Shop recommended PSP outlets, but those are no longer made. I went with Vargas aluminum outlets and was told fitment was “ok”.
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      08-16-2020, 11:54 AM   #7
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Quote:
Originally Posted by HKD126 View Post

I agree with this. My RB inlets are fantastic.

The shop that did my turbo install recommended against the VRSF outlets. Said they installed enough of them and never fit all that great and usually had issues. I have no direct experience with them however. Shop recommended PSP outlets, but those are no longer made. I went with Vargas aluminum outlets and was told fitment was "ok".
sounds like you have a great shop over there. PSP products were great! Very disappointed that they no longer produce parts for us
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