C&L 05-08 4.0L V6 Mustang Trueflow Air Intake System with Diablosport Predator

All new at Lethal Performance is the C&L Performance 4.0L Mustang TrueFlow Intake Kit and Diablo Predator Combo which is proven to add up to 23rwhp..

C&L Knowing that many of the people who have purchased the surprisingly peppy new V6 Mustang had their hearts set on "V8" level performance, we just had to offer a complete V6 version of our GT upgrade to owners of these vehicles. We heard that many of the new V6 Mustang owners originally wanted the V8 model, but became frustrated with the fact that they have been difficult to purchase due to their popularity. A short test drive in the new V6 Mustang, and you will know that this is by far the most powerful base Mustang ever produced. Knowing that this car is factory rated at 210 HP, we fully expected the baseline performance for our automatic test vehicle to be considerably lower. We had hoped to use a manual equipped test vehicle, but quickly found out that only one in ten of the V6 models are ordered with the manual transmission, as most people want the automatic in the V6 model, or at least that is what the dealerships think.

On the GT, things are quite the opposite, as most of those vehicles come with the manual transmission. Using a manual vehicle for testing offers certain inherent advantages, but we found that by turning the overdrive "off" and doing a pull in third gear from about 2,500 to 6,200 RPM, we were able to get pretty reliable results. As a general rule on most ALL vehicles, the rear wheel output is generally 35 HP less than advertised on a car that is equipped with a manual transmission, and approximately 60 HP less on an automatic vehicle. Forget about trying to apply percentages to rear wheel numbers, as that only serves to inflate your values as you generate higher levels of power. On nearly every vehicle that we have ever tested, this rule of thumb has always been consistent.

Much to our surprise, the automatic equipped V6 model put down an HONEST 175 rear wheel HP, which is a full 25 HP more than what we expected. This is on par with what we would have expected the manual version to deliver. This means that either A) Ford is under-rating this vehicle or B) The transmission in this vehicle is considerably more efficient than previous automatics or C) our particular test vehicle was well broken-in (17K miles) and stronger than typical. Since we do not have test data from a manual equipped vehicle, we will leave that for you to decide. We do know that the results during testing were quite repeatable. Also of note, the "bump" in the dyno graphs are due to the electronic control of the torque converter.

Rather than look at the "peak" numbers, which are inflated by this function of the torque converter, your must analyze the average performance data across the pull to determine actual gains. By doing this, you will find that the improvements are no less than 10 rear wheel horsepower, with a typical gain of around 12 and a peak improvement of around 15.