VS‐1 USER MANUAL AND INSTALLATION GUIDE
Contents
1. DR 1 CATLESS RACE DOWN PIPE ALSO AVAILABLE WITH FACTORY DP CONNECTION FOR USE WITH STOCK OR OTHER EXHAUST SYSTEMS _ DR 1 CATLESS RACE DOWNPIPE WITH HIGH FLOW TRUE 3 5 EXHAUST CONNECTION Installation Tools Required e 10mm box end wrench or small socket wrench e 2 deep socket wrench e 16mm deep socket wrench e 13mm standard socket wrench with extension e T50 torx bit socket wrench e T60 torx bit socket wrench for 435i installation only e E10 external torx socket wrench e Flathead screwdriver or small pry bar Step 1 Remove the Factory Exhaust System e Make sure the car is off e Using the 16mm deep socket wrench remove the nut on the band clamp from the downpipe to the exhaust system There is a small wedge shaped spacer that will still lock the screw and the band togeth er By inserting the tip of the flathead screwdriver or small pry bar be tween the spacer and the clamp pry the spacer off the band and screw assembly Remove the band clamp assembly e Remove the screws from the front hanger with the E10 external torx socket wrench e Remove 4 of the chassis cross brace screws using the T50 torx bit sock et wrench Leave one screw on each side installed loosely to help sup port the exhaust system e Unplug the valve motor on the driver side muffler outlet e While supporting the exhaust system remove the 2 nuts from the rear hangers using the 13mm socket wrench with extension e Ful2. VS 1 USER MANUAL AND INSTALLATION GUIDE f Product Description The VS 1 Variable Sound Exhaust is a precision engineered 3 5 mandrel bent stainless steel exhaust system for the BMW F30 F32 335i 435i It utilizes a high flow sports muffler with a wide open race mode that is controlled by either the factory BMW computer or CG Precision s VSC 1 remote controller The system was designed for the maximum flow and fastest turbo spool and response The VS 1 package includes QTY 1 VS 1 rear muffler section QTY 1 VS 1 front pipe QTY 1 VS 1 to OEM downpipe flange adapter QTY 2 3 5 V band gaskets QTY 2 3 5 V band clamps QTY 2 Chassis brace spacers QTY 6 Chassis brace m8 X 25mm screws QTY 1 VSC 1 remote controller optional Product Applications CG Precision has meticulously designed the VS 1 exhaust system to be a true 3 5 system from the turbocharger outlet flange all the way back to the exhaust tips By removing the factory exhaust connection when used with the DR 1 catless downpipe the maximum power response and sound is achieved The VS 1 will also fit the OEM downpipe or other performance downpipes that utilize the factory connection type The VS 1 fits the following vehicles BMW 2012 F30 335i Sedan BMW 2013 F32 435i Coupe Installation with Factory Downpipe Connection ADAPTER PROVIDED FOR USE WITH FACTORY DP CONNECTION VS 1 EXHAUST SYSTEM WITH TRUE 3 5 EXHAUST CONNECTION
3. er a bump e Note the front pipe s rotation also slightly changes the tip location For a larger gap between the tips and the bumper cutout rotate the front pipe up towards the body For a smaller gap between the tips and the bumper cutout rotate the front pipe down towards the cross brace e Fully tighten the front V band clamp using the deep socket wrench e Adjust the tips side to side within the bumper cutouts by rotating the hanger mounts about the mounting to the body This is easiest when the 13mm nuts are already somewhat tight Rotate either by hand or by using a screw driver or pry bar between the hanger mount and the body Make sure the hanger nuts are still tight e Last make sure the gap between the driver side tip and the bumper cutout is the same as the passenger side tip and the bumper cutout Rotate the muffler about the rear V band as required to achieve an even gap Fully tighten the V band clamp with the deep socket wrench Step 5 Plug in the Valve Motor or VSC 1 e f using the VSC 1 controller plug the factory plug into the VSC 1 and the VSC 1 into the valve motor Refer to the VSC 1 installation manual if needed e f not using the VSC 1 controller plug the factory plug back into the valve motor e You are ready to start your vehicle and enjoy the complete control over your car s sound and performance exclusively offered by the CG Preci sion VS 1 exhaust Failure to follow the procedures
4. hy _ tp ik fj Fa iii ti j jj J Hf IFAR fi fii FNS ETE AA USN T j ee ee i i T Le 1 4 E ri FE 1 Step 3 cont Loosely Install the VS 1 Exhaust System Install the cross brace using the aluminum cross brace spacers and 6X supplied screws Do not use the factory screws Fully tighten the screws using the 13mm socket wrench On the 435i also reinstall the 2X rear screws with the T60 torx bit socket wrench ALUMINUM SPACERS ARE INSTALLED IN BETWEEN THE CHASSIS CROSS BRACE AND THE CHASSIS NEW LONGER SCREWS ARE INCLUDED dl iy g ra w TPF Fa Step 3 cont Loosely Install the VS 1 Exhaust System Install the 2X factory screws on the front hanger and fully tighten using the E10 external torx socket wrench e Install the VS 1 rear muffler section by installing the 2X factory nuts and fully tighten using the 13mm socket wrench and extension Install the provided rear V band clamp and gasket using the deep socket Leave the clamp loose enough that the pipe can be rotated Step 4 Adjust Front Pipe and Exhaust Tip Positions e Adjust the clearance between the front pipe and the underbody by rotating the pipe up towards or down away from the body to balance the space between the underbody and the chassis cross brace Make sure there is enough clearance about 4 minimum that the front pipe will not hit on the cross brace even when the car goes ov
5. in this document may cause product damage Please consult CG Precision with any instal lation questions or concerns Please contact CG Precision for additional support Email support cgprecision com Phone 520 789 6305 CG Precision provides a 12 month warranty against defects in material and work manship for as long as the original purchaser owns the vehicle Products are not EPA or CARB approved and are intended for off road track use only All liabilities resulting from the use of these products lies solely with the purchas er user Please use at your own risk WWW CGPRECISION COM All images and content are property of CG Precision LLC
6. ly remove the chassis cross brace and exhaust system On the 435i there are two additional screws towards the rear wheels Use the T60 torx bit socket wrench to remove the screws Step 2 Prepare the VS 1 for Installation e Remove all hangers from the factory exhaust system and install onto the VS 1 in the exact same position e Remove factory valve motor and spring clip Install onto the VS 1 in the exact same position If using a VSC 1 install it on top of the valve motor using the factory hardware at this time Fully tighten the 3X screws with the 10mm box end wrench or socket wrench Continued on next page Step 2 cont Prepare the VS 1 for Installation Step 3 Loosely Install the VS 1 Exhaust System e Using the 16mm deep socket wrench install the adapter onto the fac tory downpipe using the factory band clamp Center the adapter on the flange and tighten the nut fully e Install the VS 1 front pipe onto the adapter using the provided gasket band clamp and deep socket wrench Make sure the centering lip on the adapter goes into the V band flange on the exhaust and does not hit against the face of the flange Leave the clamp loose enough so that the pipe can be rotated The flex pipe section will accommodate some variation in the adapter placement If the flange mating does not seem correct re check the centering of the adapter to downpipe connection ty MW PO bY A X Hii f ae
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