COBB XLE BPV Installation Instructions [Discontinued]

Congratulations on your purchase of the COBB Tuning XLE Bypass Valve Kit. The following instructions will assist you through your installation process. Please read them first BEFORE beginning the install and familiarize yourself with the steps and tools needed. If you feel that you cannot properly perform this installation, we HIGHLY recommend you take the vehicle to a qualified and experienced automotive technician.

Part List

• Bypass Valve (2 x Nissan GT-R)

• Paper Gasket (Mazdaspeed 3 or Legacy and 08+ WRX Applications Only)

• 4mm Allen Key

• 1/16” NPT Barbed Hose Fitting (Per Valve)

• 2 x 1/16” NPT Hex Plug (Per Valve)

• Thread Sealant Packet (Per Valve)

• 6mm COBB Vacuum Hose

Tools Needed

• 3/8” Ratchet

• 10mm & 12mm Socket

• 10mm & 12mm Open End Wrench

• 8mm Socket or Wrench

• Pliers
  
  

Tools Required for Maintenance

• 3mm Allen Key

• 4mm Allen Key

• 13mm Open End Wrench

• Lubrication Grease (We recommend Super-Lube Silicone Lubricating Grease with Syncolon)
  
  

Removal of Factory Bypass Valve

1. Locate your stock bypass valve.  Use the pictures below for reference if needed. 

                        EVO X                                                                    WRX/STi                                                          Mazdaspeed3/6

Open

                                                                                                     R35 Nissan GT-R

2. Using a pair of pliers, remove the return line from the bypass valve. Each application is a bit different.  

Open

3. Remove the vacuum line from the factory bypass valve.  Each application is a bit different.  

Open

4. Using a 10mm or 12mm socket with ratchet or 10mm or 12mm open end wrench (depending on application), remove the 2 bolts that hold the bypass valve in place.

TIP: Make sure to keep an eye on the factory gasket behind the BPV.  They can fall when you remove the valve and end up in difficult to reach locations!

5. Remove the bypass valve.