Installation Instructions for 2004-2007 Cadillac CTS-V Lingenfelter Air Intake System (5.7L LS6 and 6.0L LS2 engines) PN: L650050704 1557 Winchester Road Decatur, Indiana 46733 260 724 2552 phone 260 724 8761 fax www.lingenfelter.
Parts List # Part Number 1 LN-CTSV-AB 20-1/4” 12335 A143 19-5/8” 12335 A143 3” 12335 A143 1 L660050704 1 TFC40GNB400X1.
Before you begin - Read instructions completely before starting each step. - Pay attention to how parts are removed from the vehicle and make sure to keep track of all parts, in many cases they may be used in the installation. Step 1. Radiator shroud removal - Remove the plastic radiator shroud by removing the two plastic rivets with a flat blade screw driver or pry tool.
Step 2. Air intake tube removal - Remove stock air intake tube by loosening the two hose clamps, located on each end of the intake tube. Set air intake tube aside, it will be used in the installation process. Step 3. Stock airbox removal NOTE: Make note of the orientation of the MAF sensor. It will need to be installed in this orientation. - Remove the three mounting bolts using a 10 mm socket. - Unplug the mass airflow sensor. - Remove the air box.
Step 4. Removal of the rubber air snorkel - With the air box removed you will be able to remove the rubber snorkel located next to the radiator, under the radiator core support. Step 5. Remove plastic rivet - With the air box removed, you will see another plastic rivet on the inside fender wall. Using your flatblade screwdriver/pry tool, remove this and save it for installation.
Step 6. Installation of air filter heat shield mounting brackets. - Install the two mounting brackets on the inside surface to the air filter heat shield/shroud, as shown. -Long bracket installed.
Step 7. Installation of rubber seal - Three strips of rubber seal are included with the kit. The longest of the three seals goes on the top of the air filter heat shield and simply presses on, as shown in step 6. Push firmly to make sure the seal is completely seated on the plastic. Step 8. Install air filter heat shield - Install the rear of the heat shield first, then the front. NOTE: make sure you place the coolant hose in the notched out area of the heat shield to avoid pinching the hose.
Step 10. Mounting the front of the air filter heat shield - Secure the front of the air filter heat shield with the stock air box mounting bolt, as shown. Step 11. Remove mass air flow (MAF) sensor from stock airbox NOTE: Take care not to damage the sensor, touch any wires inside or damage the screen. Step 12. Mass air flow duct assembly - Install the silicone hose and steel tube on the screen end of the mass airflow sensor.
Step 13. Install wire loom holder - Push the wire loom holder into the hole provided on the side of the air filter heat shield. - DO NOT insert the MAF sensors wire loom yet. Step 14. Installation of air filter and MAF sensor - Remove the protective cover from the LPE supplied air filter. The filter is pre-oiled with the correct amount of oil. - NOTE: Inspect inside of filter for any debris prior to installing in the vehicle.
Step 16. Inspection of assembly - Make sure all tools, rags and debris are cleared from the engine compartment. - Start up the car and inspect the air intake assembly for any leaks and further tighten hose clamps if needed. - Shut off car. Step 17. Installation of plastic radiator shroud NOTE: components in your car’s engine compartment may be hot depending upon how long you let it run in the previous step. If needed, let the engine cool before preceding to the last step.
Step 17a. Installation of plastic radiator shroud ..continued To install the plastic rivets, place them into the hole, then push the center down to lock them into place. You’re finished assembly should look as in the picture below. Congratulations, you have just completed the installation of the Lingenfelter Performance Air Intake system for your Cadillac CTS-V. Please see Lingenfelter Performance Engineering for all your Cadillac CTS-V performance needs.
Filter service - A filter service kit is available from LPE for cleaning and re-oiling the air filter (part number SB-88-0005). The correct amount of oil for this filter element is 35 grams (1.23 ounces) of oil. Replacement filters are also available from LPE (filter part number L660050704). How frequently you should clean your filter will depend on your driving conditions. LPE recommends checking your filter at every oil change or 3,000 miles.
