Chiptuning the GK 2.7 ECM

TLDR: Anybody can tune their OEM ECM for as low as $100. I built V6 definition files for TunerPro to help get you started with the basic maps. I’m searching for aftermarket V6 and L4 tunes to add to the collection and for research purposes. I will be maintaining some definition files using the following…

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Stage 3 Upper Intake Manifold

To properly port the upper manifold it must be cut open from the surge tank and welded back up when the porting is complete. Cutting open the surge tank isn’t entirely necessary… but it may help flow a little more air with some polishing. In doing so, I wanted to mimic the NGM and Neztec…

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Stage 4 Lower Intake Manifold

After some deliberation I decided to port and polish my own lower intake manifold with basic hand tools. While it’s not quite a stage 4 port… it’s pretty damn close so let’s designate this as a stage 3.5. The upper to lower ports are just shy of 40mm to match the gasket, but the lower…

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