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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 > mmp outlets or vtt? what you guys think



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      05-12-2016, 04:43 PM   #89
nitehawk
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Quote:
Originally Posted by Tiago@VRSF View Post
Just waiting on the final sample to arrive, we had to tweak the first revision a bit.
Any updates on your outlets Tiago?
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      05-12-2016, 05:58 PM   #90
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Originally Posted by E92 420 View Post
There really is not much info on them at all. @V8bait made a thread on the mmp ones with install and gains info
Haven't really been paying attention to forums lately but had time today. Gains at peak were negligible imo but averaged a few whp, 6-7 or so iirc. The smallest delta between pre and post was like 3whp peak higher. Up top the gains were more significant, the car was holding 430whp pretty much to redline with pretty low boost, 15psi thereabout. The tune needed changes after the outlets as the dyno logs weren't as clean, but I'd attribute that more to going fbo with e85 inlets the works all at once with about 1 hour spent on the initial tune, which was then tested with these. I'd love to see more data from others though, especially with the other options hitting the market like the silicone VTT ones as they look nice as well.

My favorite part of these was the machined tapered compressor outlet adapter. I also liked that they are 3" since my fmic is 3", the car being tested wasn't however it was a 2.5" fmic. He's put like 10k miles on the car since then with no leaks and his beta version didn't even have flared pipes fwiw. He's also banned from here now lol.
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      05-13-2016, 06:16 AM   #91
Brule
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Originally Posted by WedgePerformance View Post
Did you fab shrouds to help force air through the intercooler or did you just cut to fit and mount hoping for the best?

After installation there is a lot of area for air to bypass the core which doesn't help matters. Air will take the path of least resistance. A little sheet metal fab work might help your heat soak issues.
Just cut my oem bar to fit
Never had idea of making shrouds.

Made a new threw about improving iats
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      05-13-2016, 02:34 PM   #92
fredcase
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Quote:
Originally Posted by nitehawk View Post
Any updates on your outlets Tiago?

I sent him an email earlier this week and got a reply.

Full silicone inlets should start shipping next week. Outlets a few more weeks.
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      05-13-2016, 08:29 PM   #93
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Will upgrade outlets fit our stock intercooler connection. I have the 7" hpf intercooler with the stock connection
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      05-15-2016, 12:31 AM   #94
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Quote:
Originally Posted by Tiago@VRSF
Just waiting on the final sample to arrive, we had to tweak the first revision a bit.
any updates on the silicone outlets?
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      05-15-2016, 02:08 PM   #95
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No updates, still in production. Taking a bit longer than expected. I'll update when there is an update
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      05-15-2016, 06:03 PM   #96
Turbo_power4ever
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Quote:
Originally Posted by Tiago@VRSF
No updates, still in production. Taking a bit longer than expected. I'll update when there is an update
ok. sounds good
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      05-17-2016, 07:29 PM   #97
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does anyone know if adding RB turbo inlets will add any gains to hp and tq on stock turbos? VTT claims that theres 30 hp gains with just adding inlets on stock turbos with no other mods.
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      05-17-2016, 08:48 PM   #98
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Quote:
Originally Posted by Sixfiggaz View Post
does anyone know if adding RB turbo inlets will add any gains to hp and tq on stock turbos? VTT claims that theres 30 hp gains with just adding inlets on stock turbos with no other mods.
It's possible, but vtt is generally full of shit.
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      05-17-2016, 09:21 PM   #99
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Quote:
Originally Posted by Julian2485 View Post
Are the outlet upgrades really getting our cars any more hp and tq than what the inlets are giving us ?
Quote:
Originally Posted by Grand_hustle17 View Post
Well. There are threads on them. Should check them out. Not very hard finds.

Would you mind linking to those threads which demonstrate performance improvement? By demonstrate I mean data collected through logging or dyno measurements.
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