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I frequently get asked by customers “What is an N2MB WOTBOX?”, “Do I need one?”, “What does it do?”. If you’re new to the Mazdaspeed world (or any Direct Injected platform) and looking to make big power, then you likely weren’t around in 2013 and active on mazdaspeedforums when we discovered that cutting ignition was necessary to “no-lift-shift” and limit RPM when using Auxiliary Fuel systems as a solution for making high horsepower. Using Auxiliary Port Injection to make big power became very popular in 2012-2013 and I was very active with it on the tuning side of things. Here is a video I made explaining why we use it and if you already have one; how to properly program it!

***JUST REMEMBER***: The features that the N2MB WOTBOX offers (such as NLS, Launch Control) via Spark cut are MOTORSPORTS FEATURES. Cutting off the ignition source for 2 Step and No Lift Shifting puts a lot of energy and heat into the exhaust side of the cylinder head and turbocharger in order to help keep boost up between shifts by driving the turbo with energy not consumed during normal combustion (due to unburnt fuel that was not ignited inside the cylinder). If you abuse this feature and use it aimlessly, expect to see significant wear with OEM exhaust valves and exhaust valve lash. It’s not uncommon for the exhaust valve lash to tighten up causing misfires and see bent exhaust valves when you abuse this feature. NLS also puts most turbochargers on their surge limit during a gear change with the boost kept up. In general it introduces a lot of heat to exhaust components that they normally would not be subjected to so just keep that in mind that it is a motorsports function…use it for its intended purpose when you’re “racing” the car. Not just to shoot flames and be the cool guy on the block. Use these functions for when they matter and count and you’ll enjoy it a long time.