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Just wanted to put this out there because I was approached by multiple GT350/R owners yesterday at Laguna Seca that didn't know about this. I heard about Grimmspeed's "exhaust valve defeat module" and decided to put it to the test. I can verify that it works at Laguna Seca meeting the 90dB sound...

Looking into selling my 16 tech pack only because I have a shot at an R for MSRP. I was about to swap in the track pack transmission with coolers to make it more track ready but this seems like a better option. It is modified with american racing long tubes headers, no cats and stock mufflers...

Any other flex fuel tuned GT 350s notice that redline is above 9k? I was doing some data logging to see if my fuel system could hang with my setup and honestly haven't redlined it in a while. Bounced it off the rev limiter at 9049rpms! Fuel system was keeping up until that point according to my...

I took my car to get dyno'd today to see where I'm at and plan future mods. I'm not the most technical guy so I thought I'd post here to see what others think. My car: 16 Tech Pack with Lund flex fuel tune, JLT CAI, otherwise stock. Approx 3200 miles. Mustang dyno that's known to be...

I heard this mentioned in another thread but haven't seen any follow up or further talk. I am very interested in this, especially since I only have access to 91 Octane. Definitely don't want to be a guinea pig though. Has anyone actually ran E85 in the 350 other than lethal's whippled car?