![]() If you’re using your highly addictive and smile-inducing power to accelerate faster mileage is not a priority and gains shouldn’t be expected. We hope to sell modules based on power improvements instead. There are far too many factors involved for us to get involved in guaranteeing mileage. It is hard to deny, considering our feedback is littered with subtle flexes. Stealth Modules’ approach to power, combined with responsible driving habits, often result in a mileage improvement. Have you ever tried to light a puddle of diesel with a cigarette lighter? Imagine the potential that can be squeezed out of every drop of diesel if it is properly atomized out of the tip of an injector into a combustion chamber with a piston compressing it until it explodes. Gasoline is significantly more combustible at a rest than diesel. If you plan on using horsepower to get the job done, you need to feed the horses. Mileage is a hot subject in the diesel industry. ![]() Wide open throttle peak power gains are typically 30-60 hp and 50-100+ lbs./ft. No other modification is required or even recommended. Working outside the ECM with a module means factory safety parameters remain in place. The 2-stroke style power curve, which has a lot of lag followed by a sudden surge, will be replaced with freight-train-feeling, 4-stroke style torque power delivery. Instead, you will have smooth predictable power delivery that allows you to hold higher gears and keep your RPMs down. Modules will not make you blow smoke, do wheelies, or apply throttle manipulation like a tuner. Your truck will be happy getting the job done in a much broader RPM range. Instead of lugging around, waiting for the boost to hit. These are great for improving power where it is lacking. Modules intercept ECM reference signals by plugging inline under the hood with simple factory style connectors. Wide open throttle peak power gains are typically 30-150 hp and 50-300+ lbs./ft. Stop light to stop light, playing around can be a blast. Since this approach at power is better suited for increasing power on top of the peak, it is uncommon for tuners to amplify the throttle sensitivity to give the impression of more power down low. Exhaust gas, coolant, oil, and transmission temperature limits can be raised to avoid pre programmed electronic safety limitations. Having full control over the ECM is important when squeezing power out of larger injectors, turbo, manifolds, exhaust, intercooler, etc. This option is usually complemented with a plethora of expensive supporting modifications and requires gauges to monitor drivetrain vitals. ![]() Wide open throttle dyno figures and ¼ mile times will be more impressive compared to a module. They are great for big top-end power and exploring the absolute limit of a truck’s potential. Tuners plug into the OBD II (Onboard Diagnostics Systems) port and flash the ECM. After years of exploring that route and of experiencing the end result, you’re hoping for a satisfying yet less invasive option. ![]() You’ve been down the long slippery slope of buying performance piping, exhaust, studs, turbos, transmission rebuilds, etc. You’ve had one or more stinky, smokey, unreliable, and heavily modified 2000’s pickup. If you’re like most new diesel pickup owners we speak to, this is not your first rodeo. Read on to learn the ins and outs of tuner vs module. Our goal today is to help you understand the difference between a flash tuner and an inline module so you can decide which option is best for you. Stealth Modules are a very popular option for the silent majority of diesel owners out there, but they are not for everyone. This is probably why you landed here - wondering if you should go the old route of flashing the ECM (Engine Control Module) and sacrificing your warranty or “settle” for a warranty-friendly solution. Perhaps that has to do with the fact that dyno figures represent wide open throttle situations which are not typical or realistic for your daily driver, especially when mileage is a concern. The issue is that these trucks feel awkward - as if you’re always lugging outside of its power curve. Regardless of the advertised high peak power figures, a large portion of new diesel owners are left unsatisfied with their new purchase.ĭon’t get us wrong these trucks come from the factory with plenty of power to get the job done. For example, all three major brands offer roughly 1,000 lbs./ft. As we’re sure you’ve noticed, diesel trucks appear to be significantly faster and more powerful than before. ![]()
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