97706 Banks High-Flow Boost Tubes for 2011 Chevy/GMC Turbo-Diesel Pickup Trucks
INSTALL INSTRUCTIONS
Part #s
25959
Banks High-Flow Boost Tubes 2011 Chevy/GMC Turbo-Diesel Pickup Trucks
Please read through the following instructions thoroughly before starting your installation. If you have any questions please visit our Support Page.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/25959_Kit_V2-800x800.jpg)
- 3/8 Drive ratchet
- Ratchet extension
- Inch and metric deep sockets
- Philips and flat blade screwdrivers
- Highly Recommended Tools:
- Foot-pound torque wrench
- Inch-pound torque wrench
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/1-Tools_1-1024x768.jpg)
Required Tools
- ½” Breaker Bar
- 7, 10, 11, 22mm Sockets
- 14mm wrench
- Ratchet and extension
- Flat blade screwdriver
- T-15 Torx
Bill Of Materials
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/25959_BOM-1024x856.jpg)
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/25959_BOM_Diagram-scaled.jpg)
Section 1: Preparing for Installation
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/2-Remove-Wheels_1-1024x576.jpg)
1. Secure the truck on a lift and remove both front wheels to allow for full access.
To remove the fender well, you will need a T-15 Torx bit.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/3-Remove-fender-liner_1-1024x576.jpg)
2. Remove both of the front fender liners.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/09/5_Remove_One-1024x574.jpg)
3. Using a 10mm socket, loosen and remove the negative terminal on the driver’s side battery.
Then move to the passenger’s side, and do the same on the 2nd battery.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/09/5_Remove_Two-1024x574.jpg)
Section 1: Removal of the OEM hot side tube
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/09/6_Disconnect_Turbo_Outlet_Clamp-2-1-scaled.jpg)
1. Undo the hose clamp holding the top of the OEM hot side tube to the turbo outlet.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/6-Loosen-Bottem-1_1-1024x576.jpg)
2. Undo the hose clamp holding the bottom of the OEM tube to the charge air cooler Inlet.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/6-Loosen-Bottem-2_1-1024x576.jpg)
3. With a side-to-side motion, pull back until it’s free.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/7-Remove-Hot-Side_1-1024x576.jpg)
5. Now pull the entire OEM hot side tube up and out from the Truck.
ATTENTION: Boost-Tube Clamps
When Installing the clamps, be sure the hose and clamps go on far enough to clear the bead on each end.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/Good-Clamps-1024x1024.jpg)
An improper installation, such as a clamp sitting directly on a bead or crossed diagonally, will result in a boost leak.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/Bad-Clamps-1024x1024.jpg)
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/Wak-Hose-1024x1024.jpg)
Section 2: Installation of the Banks Hot Side Boost Tube
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/8-Lower-Banks-Hose_1-1024x576.jpg)
Grab the Banks lower Hot-Side Boost-Tube hose and clamps.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/8-Lower-Banks-Hose-Install-1_1-1024x576.jpg)
6. Slide the smaller end of hump hose (#94511) with a 3-1/2 inch clamp (#92895) onto the Charge Air Cooler.
Once over the bead and secure, tighten the clamp to 5-ft/lb.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/8-Lower-Banks-Hose-Install-2_1-1024x576.jpg)
7. Slip on a 4-inch clamp (#92901) on the larger side, leave it loose for now.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/9-Lower-Banks-Tube-1_1-1024x576.jpg)
8. From underneath the truck, work the lower Banks Driver Side Boost Tube up through the wheel well.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/9-Lower-Banks-Tube-2_1-1024x576.jpg)
Leave the Boost-Tube loose in the wheel well for now to allow for movement when you install the upper Boost-Tube.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/10-Top-Banks-Tube-3_1-1024x576.jpg)
9. Grab the Banks Upper Hot-Side Boost-Tube (#41316), its two hoses (#94299 & #94293), and four clamps. (#92852, and 3x #92901)
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/11-Lower-clamp-1_1-1024x576.jpg)
10. Slip on a 4-inch clamp (#92901) on the lower Hot-Side Boost-Tube for now.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/12-Upper-Tube_1-1024x576.jpg)
11. Rotate the upper Hot-Side Boost-Tube until the top can slip into the turbo outlet hose.
Use flathead screwdriver to help pry the hose over the tube.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/13-Tubes-Connected-1_1-1024x576.jpg)
12. Tighten the upper clamp on the middle Hump Hose.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/13-Tubes-Connected-2_1-1024x576.jpg)
Slip the lower Hot-Side Boost-Tube into the hump hose, and tighten as well.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/13-Tubes-Connected-3_1-1024x576.jpg)
13. Slip the lower hose onto the Boost tube. Be sure it slides in far enough for the clamp to clear the bead. Tighten to 5-ft/lb.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/13-Tubes-Connected-4_1-1024x576.jpg)
14. With the lower clamps secure, return to the top clamps and tighten to 5-ft/lb.
Section 3: Removal of the OEM cold side tube
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/19_Loosen_Intake_Clamps-1024x574.jpg)
1. Start by loosening the two clamps on the factory intake tube.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/20_Remove_Intake_Tube-1024x574.jpg)
2. Lift and remove the factory air intake tube from the truck.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/21_Air_Intake_Sensors-1024x574.jpg)
3. Unplug the Air Intake Sensors on the factory air box and cold side boost tube.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/22_Remove_Factory_Airbox-1024x574.jpg)
4. Lift up and remove the factory airbox from the truck.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/17-Loosen-Cold-Side-Top_1-1024x576.jpg)
5. With a flathead screwdriver, tap the locking ring counter clockwise to unlock it from the throttle.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/18-Loosen-Cold-Side-Bottem_1-1024x576.jpg)
6. Loosen the lower retaining clip of the passenger side boost tube by rotating it counter clockwise.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/19-Remove-Cold-Side-1_1-1024x576.jpg)
7. Rotate and free the OE cold side boost tube.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/19-Remove-Cold-Side-2_1-1024x576.jpg)
8. Remove the Cold-Side Boost-Tube through the top of the truck.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/Transfer-Sensor-1024x573.jpg)
9. Transfer the Intake Air Temp sensor to the Banks Cold-Side Boost-Tube
Section 4: Installing the Banks Cold Side Boost Tube
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/21-Top-Coldside-Hoses_1-1024x576.jpg)
10. Install the upper Cold-Side Boost-Tube Hose (#94312) and Clamps. (#92895 & #92901)
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/22-Bottom-Coldside-Hoses-2_1-1024x576.jpg)
10. Slip the smaller end of the lower cold side hose (#94311) and Clamp (#92897) onto the charge air cooler outlet.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/30_Tighten-1024x574.jpg)
11. Tighten the clamp to 5-ft/lb.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/31_Slip_a_4_Inch-On-1024x574.jpg)
12. Slip a 4-inch clamp onto the other end, but leave it loose for now.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/23-Coldside-Tube-Install-1_1-1024x576.jpg)
13. From the top of the truck, slide the Banks Cold-Side Boost-Tube down and into position with the lower cold side hose.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/23-Coldside-Tube-Install-2_1-1024x576.jpg)
14. Slip the lower hose on, be sure it slides in far enough for the clamp to clear the bead.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/23-Coldside-Tube-Install-3_1-1024x576.jpg)
15. Slip the Cold-Side Boost-Tube onto the throttle body hose (#94312) and 4.0″ clamp (#92901).
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/23-Coldside-Tube-Install-4_1-1024x576.jpg)
Tighten to 5 ft/lbs
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/23-Coldside-Tube-Install-5_1-1024x576.jpg)
16. Now tighten the lower Cold-Side Boost-Tube clamps.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/36_And_Tighten_Lower_Clamps-1024x574.jpg)
17. Adjust the Boost Tube as needed for fitment, and be sure the beads are fully seated into the hoses before tightening the clamps to 5 ft-lbs.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/Airbox-Install-1024x573.jpg)
18. Drop in and re-install the air intake system.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2023/11/38_AIr_Intake_Sensors-1024x574.jpg)
19. Plug in the air intake sensors.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/27-Reinstall-Fender_1-1024x576.jpg)
20. Reinstall the fender liners.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/28-Reinstall-Wheel_1-1024x576.jpg)
21. Reinstall the front wheels.
![](https://banks-wp-images.s3.amazonaws.com/performance-upgrades/wp-content/uploads/2024/01/29-Battery-Check_1-1024x576.jpg)
22. Reconnect both batteries. Start the truck and check for any boost leaks or loose clamps.
And enjoy your new Banks Boost-Tubes.