GTM Performance Engineering: MHI Twin Turbo Official Release

Mr.Squeeze

Open dumps aren't that bad I have them on my car there loud when your pushing it WOT. I drive around part throttle or cruising and it's not loud at all.

I have also had recirculated into my exhaust and it was just to quiet while out having some fun with other cars. There were time were I couldn't here my car at all and I have a 3 inch exhaust.

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Driven Motorsports Single Turbo 7675 T4 1.32 A/R 995WHP 780TQ

leighspped

so you mean straight pipe gtr's?

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Performance: Fast Intentions LTH + CBX + Injen CAI + UpRev + KW3 + Whiteline sway bars + short throw shifter + 34r oil cooler = 335whp + (OS Giken Clutch and Diff)
Interior : Recaro seat + Alpine HU and Rockford Fosgate Amp and Speakers + Passport 9500ci + JDM shift knob + LED's Forged avant garde m310's 19x9 19x12 RE-11

Chuck33079

Depends on when the wastegates are set to open up. I'm assuming you can get more than a few psi before the wastegates start opening since you're running a lot of boost. For someone that's running ~10 psi with a 5 psi wastegate spring, the wastegates are going to be open a lot even at part throttle. I recirculated mine with a 3" catted FI exhaust, and I couldn't be happier. Sometimes I want more noise, but that's ok. I prefer wanting a little more noise sometimes over wanting less noise all the time.

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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

Mr.Squeeze

Good point sometimes I forget I run no less than 14 PSI of boost .


You lost me with this one straight pipe gtr's?

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Driven Motorsports Single Turbo 7675 T4 1.32 A/R 995WHP 780TQ