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Preliminary testing of the C&L Performance TrueFlow Inlet Pipe, MAF, & TrueFlow Filter on a 2005 Mustang GT shows peak gains of 18 RWHP & 17 RWTQ!
2005 Mustang GT Premium Edition, 5-speed car with 1050 miles on the odometer. Bone stock down to the paper filter!
Made 3 back-to-back pulls right off the street after a 70 mile drive to determine our baseline. Temperature was between 55-59 degrees.
Installation of the pre-production unit from C&L Performance was  accomplished and 7 more dyno pulls were made using various ID sized MAF's. Final A/F ratio was safely in the 12's.
Here are the SAE graphs from the dyno runs. The stock dyno graph used was our 2nd base pull because it more closely represented what the average GT makes on the street once she's fully warmed up. As you can see, once we found the appropriate MAF that kept the A/F in the 12's the total peak gains were 18 RWHP & 17 RWTQ!
Just for fun we thought we'd show you the un-corrected numbers too! Pretty impressive for a stock GT with nothing more than an intake mod!!!!
Comparison picture of the C&L unit and the stock intake.
Special thanks go out to Blake for the use of his dyno! Please visit his website at:
Walker DynoTune
Keep in mind the C&L Performance parts used in these tests were PRE-PRODUCTION UNITS! The Airbox for the filter is still being fabicated as well as the mounting bracket.
For more information about these new products please contact the good folks at:
C&L Performance
C&L Webpage write-up.
C&L is pleased to announce ANOTHER FIRST for Mustang enthusiasts.  Owners of the cool new 2005 GT Mustang will love the complete package that we have developed for these vehicles.  So much more than a "cold air" kit, this is a complete system that truly addresses every aspect of improving the air intake on the all-new Mustang.  As a complete throttle-body forward package, the entire factory air intake assembly is replaced with all new components.  While others will try to sell a "cold air" package that consists of a cone filter and an exhaust pipe tube based mass airflow housing, only our package comes with an all-new (patent pending) cast inlet pipe and a CNC machined aluminum mass airflow housing.  This gives us the ability to properly calibrate the mass air signal to ensure that no computer re-tune is necessary.  The factory commanded air/fuel ratio on these vehicles is 12.0:1, with the ACTUAL air/fuel ratio coming in at around 11.0:1.  By using a CNC machined MAF housing, we are able to control the air velocity across the original factory air sensor to deliver the 12:1 air/fuel ratio that the computer expects.  This means that the computer does not have to make any "adjustments" to reach it's target air/fuel ratio, and yet it gives you the room to do other modifications (such as exhaust upgrades which may lean out your air/fuel ratio) without the need to do any special tuning.  MAF housings that are made out of tubing (3.5" exhaust pipe) and use a welded-on sensor flange can not be machined or adjusted to properly control the velocity of the air as it travels across the MAF sensor. This means that custom tuning will most likely be required when using such a unit, in order to keep from having issues with the factory computer programming.  When developing this system, we found that the computer is extrmemely sensitive to MAF design changes, which means that a properly tuned MAF housing is critical on these vehicles in order to keep the computer happy.  As you will see in the enclosed dyno charts, our 2005 test vehicle was VERY happy to receive this new upgrade.
With an air/fuel ratio no leaner than 12.2:1, our new system gave an increase of 18 rear wheel HP and 17 ft/lbs of torque.  More impressive than these "peak" gains are the average gains that are realized throughout the entire "shifting" RPM range (4750 RPM to redline).  At no point throughout this RPM range does the gain appear to be below 15 rear wheel HP.  Peak improvements are nice, but it is the AVERAGE power gains that really help your performance both down the track and in the real world.
Not shown in these pictures is the filter shield assembly that will be provided with the system.  This cover will attach to the fender using the original factory airbox bolt hole, and will completely separate the air filter from the engine compartment heat.  Although pricing has not yet been finalized, the cost for the entire system should not exceed $350 when it becomes available in early January 2005.  We are sure that this package will soon become one of the most popular upgrades for the 2005 Mustang.