When it comes to increasing the performance of your 03-07 6.0L Powerstroke, start with the basics. The simplest way to add reliable power is to install a cold-air intake. A key component in power production is air volume. By installing a larger intake, you let in a greater volume of air, which in turn increases horsepower, improves throttle response, improves fuel economy, and lowers engine temperatures.
No Limit's cold air intake features a 5" diameter inlet pipe leading to the standard VGT S300 inlet or the 5" S400 inlet that will outflow any other intake on the market, as it utilizes the exclusive No Limit 5" x 12" AFE Filter coupled with smooth, mandrel-bent piping for superior performance. This intake will increase horsepower and torque, boost throttle response, reduce smoke output, and even improve fuel mileage.
Naturally, we don't just focus on performance when aesthetics is important to you as well. You have choices to fit your truck's theme and your personal style. You can choose raw (no finish), which is a popular option for those looking to apply a custom powder coat. If you love that mirror shine, go for the polished finish. And finally, for those who prefer a little subtlety, you can opt for black. You also have a choice of different filter media. No Limit uses AFE's high-performance filters in their intake kits. The Dry is a cleanable media that does not require oiling, making it great for those concerned with oil bypassing the filter. The Oiled Filter option is similar to Dry's five-layer media, though it requires oiling. And finally, the Pro Guard 7 is the pinnacle, featuring 7 layers of oilable media for ultimate protection.