Everyone has their own opinion on when to switch to a standalone PCM, and I have my opinion too. But who in their right mind thinks it a good idea to aim to run 4’s in the 1/8th mile on an OEM PCM and HP Tuners? Well, Sam Heath thinks it’s a great idea with his little red S10.
Over the last two decades, General Motors LS and LT engines have gotten better, stronger, and even more efficient. As tuners, we won’t just be handling the newest ECMs. We’ll also be tuning the older versions, especially in some of the more loved models of GM vehicles. For this reason, it’s important to understand the differences in the generations.