Our proprietary Halltech PCV (positive crankcase ventilation) fitting is made from carbon fiber infused nylon, with a smooth double-barrel interior.  Barbed on one end for the CAI connection, and smooth on the other for the PCV line. It's a perfect replacement for GM's OEM fitting.

This F-Seal gasket couples the venom intake bridge to the Delphi MAF unit

This hose is custom made to transition from the C8 intake tube to a Soler Performance 95mm t/b.

• Please indicate if you want a short hose (because you are using the t/b spacer plate), or a long hose (not using the spacer plate).
• Please also indicate if you want the PCV side finger (Stingray, E-Ray) or not (Z06, ZR1)

Halltech Flex-Lock™ 3.75" Hump Hose:

• ID on both ends is 3.75"
• Hose length is 3", and hose thickness is nominally .142"
• Includes two stainless steel hose clamps.
• Includes notch that keys into your C5 Delphi MAF sensor

Our exclusive Flex-Lock™ hose design combines controlled flexibility with positive mechanical grip to create a more secure, resilient connection between the throttle body and intake system. Each mandrel-formed hose features a seven-layer, Nomex®-reinforced silicone construction, a compliant hump section to accommodate engine movement and torque, and internal grip ridges at each end to increase engagement with the throttle body and intake tube.

Halltech Flex-Lock™ 4.5" Hump Hose:

• ID on both ends is approximately 4.5"
• Hose length is 3", and hose thickness is nominally .142"
• Includes two stainless steel hose clamps.
• Make sure to request the added hole if you need the PCV capability (PCV elbow fitting available during checkout, if desired)

Our exclusive Flex-Lock™ hose design combines controlled flexibility with positive mechanical grip to create a more secure, resilient connection between the throttle body and intake system. Each mandrel-formed hose features a seven-layer, Nomex®-reinforced silicone construction, a compliant hump section to accommodate engine movement and torque, and internal grip ridges at each end to increase engagement with the throttle body and intake tube.

The result is a transition hose engineered to flex where it needs to flex—and lock securely where it needs to hold.

Halltech Flex-Lock™ 4" Hump Hose:

• ID on both ends is approximately 4"
• Hose length is 3", and hose thickness is nominally .142"
• Includes two stainless steel hose clamps.
• Make sure to request the added hole if you need the PCV capability (PCV elbow fitting available during checkout, if desired)

Our exclusive Flex-Lock™ hose design combines controlled flexibility with positive mechanical grip to create a more secure, resilient connection between the throttle body and intake system. Each mandrel-formed hose features a seven-layer, Nomex®-reinforced silicone construction, a compliant hump section to accommodate engine movement and torque, and internal grip ridges at each end to increase engagement with the throttle body and intake tube.

The result is a transition hose engineered to flex where it needs to flex—and lock securely where it needs to hold.

Halltech Flex-Lock™ 4.5-4.25" Hump Hose:

• ID on intake end is 4.5" to fit our KillerBee series intake bridges
• ID on throttle body end is 4.25" to fit a NW 103 t/b
• Hose length is 3", and hose thickness is nominally .142"
• Includes two stainless steel hose clamps.
• Make sure to request the added hole if you need the PCV capability (PCV elbow fitting available during checkout, if desired)

Our exclusive Flex-Lock™ hose design combines controlled flexibility with positive mechanical grip to create a more secure, resilient connection between the throttle body and intake system. Each mandrel-formed hose features a seven-layer, Nomex®-reinforced silicone construction, a compliant hump section to accommodate engine movement and torque, and internal grip ridges at each end to increase engagement with the throttle body and intake tube.

Halltech Flex-Lock™ 4-3.75" Hump Hose:

• ID on intake end is 4" to fit our Stinger series intake bridges
• ID on throttle body end is 3.75" to fit a stock C7 t/b
• Hose length is 3", and hose thickness is nominally .142"
• Includes two stainless steel hose clamps.
• Make sure to request the added hole if you need the PCV capability (PCV elbow fitting available during checkout, if desired)
• (Make sure to request the added notch if you need it for our C6 Venom V2026 (05-07 LS2) System)

Our exclusive Flex-Lock™ hose design combines controlled flexibility with positive mechanical grip to create a more secure, resilient connection between the throttle body and intake system. Each mandrel-formed hose features a seven-layer, Nomex®-reinforced silicone construction, a compliant hump section to accommodate engine movement and torque, and internal grip ridges at each end to increase engagement with the throttle body and intake tube.

Halltech Flex-Lock™ 4.5-4" Hump Hose:

• ID on intake end is 4.5" to fit our KillerBee series intake bridges
• ID on throttle body end is 4" to fit a stock C6 t/b
• Hose length is 3", and hose thickness is nominally .142"
• Includes two stainless steel hose clamps.
• Make sure to request the added hole if you need the PCV capability (PCV elbow fitting available during checkout, if desired)

Our exclusive Flex-Lock™ hose design combines controlled flexibility with positive mechanical grip to create a more secure, resilient connection between the throttle body and intake system. Each mandrel-formed hose features a seven-layer, Nomex®-reinforced silicone construction, a compliant hump section to accommodate engine movement and torque, and internal grip ridges at each end to increase engagement with the throttle body and intake tube.