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      11-06-2019, 02:15 PM   #1
cmb570
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Question 17' m2 n55 turbo upgrade questions

Ive installed the list below of parts in prep for pure stage 2 turbo. Questions i have. 1) how much should upgrading turbos cost me, parts & labor? 2) are parts listed all i will need to upgrade turbo now? 3) I was leaning toward not using Meth (if ok), what power / boost should i expect ?

Parts already added:
1) Bigger cooler
2) Catless DP
3) Charge pipes
4) K&N airfilter (stock box)
5) tune

Parts needed next:
1) Pure stage 2 turbo
2) fuel pump upgrade
3) retune

4) Meth
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      11-06-2019, 06:30 PM   #2
Anthony1s
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Quote:
Originally Posted by cmb570 View Post
Ive installed the list below of parts in prep for pure stage 2 turbo. Questions i have. 1) how much should upgrading turbos cost me, parts & labor? 2) are parts listed all i will need to upgrade turbo now? 3) I was leaning toward not using Meth (if ok), what power / boost should i expect ?

Parts already added:
1) Bigger cooler
2) Catless DP
3) Charge pipes
4) K&N airfilter (stock box)
5) tune

Parts needed next:
1) Pure stage 2 turbo
2) fuel pump upgrade
3) retune

4) Meth
Add GFB DV+ and Pure Turbos inlet pipe. I wouldn't say they are "needed" but they do offer improvements and are easier swapped if doing a turbo upgrade at the same time. You may also need to upgrade the TMAP sensor to the N20 variant, which can read higher boost values.

I would think around $8k for it all. Though it will probably be less. I know PS2, XDI-35, GFB DV+, and PS inlet pipe come out to $5700. I think a custom tune is ~$700, rough guess for install $1000-1500, TMAP sensor guess $200. I may be a little high on my guesses though.
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      11-07-2019, 09:39 AM   #3
cmb570
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Quote:
Originally Posted by Anthony1s View Post
Add GFB DV+ and Pure Turbos inlet pipe. I wouldn't say they are "needed" but they do offer improvements and are easier swapped if doing a turbo upgrade at the same time. You may also need to upgrade the TMAP sensor to the N20 variant, which can read higher boost values.

I would think around $8k for it all. Though it will probably be less. I know PS2, XDI-35, GFB DV+, and PS inlet pipe come out to $5700. I think a custom tune is ~$700, rough guess for install $1000-1500, TMAP sensor guess $200. I may be a little high on my guesses though.
cool, thank you
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      11-13-2019, 08:16 PM   #4
Wattens
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Quote:
Originally Posted by Anthony1s View Post
Add GFB DV+
GFB DV+ wrecked my "FRIENDS" original diverter valve.
It's a useless product, sometimes it works and sometimes it doesn't.

I don't even consider GFB anymore, there is a reason it's cheaper, I'd rather give my M2 the best parts. It's an expensive car after all.

I'd post a photo or video but I can't figure out how to do it on here lol.

Last edited by Wattens; 02-23-2020 at 04:23 PM.. Reason: *EDITED BECAUSE ANTHONY1 IS HAVING A CRY*
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      11-13-2019, 09:58 PM   #5
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Quote:
Originally Posted by Wattens View Post
GFB DV+ wrecked my original diverter valve.
It's a useless product, sometimes it works and sometimes it doesn't.

Instead of buying a whole new overpriced BMW diverter valve, I just went to Turbosmart and they had a product that replaced the crappy plastic OEM part and the GFB entirely and it plugged right into the original wiring harness for the OEM DV.

I don't even consider GFB anymore, there is a reason it's cheaper, I'd rather give my M2 the best parts. It's an expensive car after all.

I'd post a photo or video but I can't figure out how to do it on here lol.
Do you understand the purpose of the GFB DV+ or you think it's just an upgrade to a plastic OEM part?
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      11-18-2019, 11:10 AM   #6
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Quote:
Originally Posted by AmericanWrapCo View Post
What is a GFB
GFB is the name of the brand, DV+ is the upgraded diverter valves offered by this brand.
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