Halltech Systems Stinger Throttle Body Hump Hose - No Hole in PCV Hose - No PCV Fitting - Notch (2005 - 2007 Chevrolet Corvette C6 LS2 Venom / 2014 - 2019 C7 Stingray / 2017 - 2019 Grand Sport / 2015 - 2019 Z06) - H-4X3.75-RHH
The Halltech Systems H-4X3.75-RHH Flex-Lock throttle body hump hose provides a purpose-built 4-inch to 3.75-inch transition for compatible Halltech intake systems. This version is configured with the added notch, no hole in the PCV hose, and no PCV fitting. Halltech specifically calls for the notch when the hose is used with its 2005-2007 C6 LS2 Venom V2026 system, making this the notched version for that application while retaining the same Flex-Lock architecture used with Halltech Stinger-series intake bridges.
Halltech goes beyond a basic silicone reducer with a seven-layer, Nomex-reinforced construction, compliant hump section, and internal grip ridges at both ends. The hump provides controlled flexibility to accommodate engine movement and torque, while the internal ridges increase engagement with the connected components. The hose measures 3 inches long with a nominal .142-inch wall thickness and includes two stainless steel hose clamps.
Specifications
- Manufacturer: Halltech Systems
- Part Number: H-4X3.75-RHH
- Product: Flex-Lock Reducing Throttle Body Hump Hose
- Intake-Side Inside Diameter: 4 inches
- Throttle Body-Side Inside Diameter: 3.75 inches
- Hose Length: 3 inches
- Nominal Hose Thickness: .142 inches
- Construction: Seven-layer Nomex-reinforced silicone
- Hose Design: Flexible hump section with internal grip ridges
- PCV Hole: No hole in PCV hose
- PCV Fitting: Not included
- Notch: Included
- Clamps: Two stainless steel hose clamps included
- Intake Connection: 4-inch Halltech Stinger-series intake bridge connection
- Throttle Body Connection: 3.75-inch inside diameter
Features
- Halltech Flex-Lock reducing throttle body hump hose
- 4-inch intake-side inside diameter
- 3.75-inch throttle body-side inside diameter
- Added notch for the applicable Halltech C6 Venom V2026 LS2 system
- No PCV hole in this configuration
- No PCV elbow fitting included
- Seven-layer Nomex-reinforced silicone construction
- Compliant hump section accommodates engine movement and torque
- Internal grip ridges increase mechanical engagement at both ends
- 3-inch overall hose length
- Nominal .142-inch hose thickness
- Includes two stainless steel hose clamps
Notched C6 Venom Configuration
The notch is an important distinction with this version of the H-4X3.75-RHH. Halltech specifically instructs buyers to request the added notch when the hose is being used with its C6 Venom V2026 system for the 2005-2007 LS2 Corvette. This configuration includes that notch while leaving the hose without a PCV hole or PCV elbow fitting.
Halltech Flex-Lock Design
A throttle body connection has to remain secure while the engine moves under acceleration, deceleration, and changing loads. Halltech's Flex-Lock design uses a compliant hump section to provide controlled movement instead of forcing the connection to remain rigid. Internal grip ridges at each end increase engagement, giving the hose flexibility where movement is needed and a positive mechanical grip where the connection needs to hold.
Seven-Layer Nomex-Reinforced Silicone
The H-4X3.75-RHH is mandrel-formed from seven-layer, Nomex-reinforced silicone rather than a basic straight silicone reducer. Its reinforced construction works with the flexible hump section to create a resilient transition between the intake and throttle body while maintaining the movement engineered into the Flex-Lock design.
4-Inch to 3.75-Inch Reducing Design
The hose transitions from a 4-inch inside diameter on the intake end to a 3.75-inch inside diameter on the throttle body end. For Halltech Stinger applications, the 4-inch side is sized for the Stinger-series intake bridge and the 3.75-inch side is sized for the stock C7 throttle body. The reducing profile is incorporated directly into the 3-inch-long hose for a clean, purpose-built transition.
Fitment
- 2005 Chevrolet Corvette C6 LS2 Venom
- 2006 Chevrolet Corvette C6 LS2 Venom
- 2007 Chevrolet Corvette C6 LS2 Venom
- 2014 Chevrolet Corvette C7 Stingray
- 2015 Chevrolet Corvette C7 Stingray
- 2016 Chevrolet Corvette C7 Stingray
- 2017 Chevrolet Corvette C7 Stingray
- 2018 Chevrolet Corvette C7 Stingray
- 2019 Chevrolet Corvette C7 Stingray
- 2017 Chevrolet Corvette C7 Grand Sport
- 2018 Chevrolet Corvette C7 Grand Sport
- 2019 Chevrolet Corvette C7 Grand Sport
- 2015 Chevrolet Corvette C7 Z06
- 2016 Chevrolet Corvette C7 Z06
- 2017 Chevrolet Corvette C7 Z06
- 2018 Chevrolet Corvette C7 Z06
- 2019 Chevrolet Corvette C7 Z06
FAQs
Does this Halltech H-4X3.75-RHH include the notch for the C6 LS2 Venom?
Yes. This specific configuration includes the added notch. Halltech specifically calls for the notched version when the hose is used with its 2005-2007 C6 LS2 Venom V2026 system.
Does this configuration include a PCV hole or PCV fitting?
No. This version of the H-4X3.75-RHH is configured without a PCV hole and does not include the PCV elbow fitting. It does include the notch and two stainless steel hose clamps.
Get Your Halltech Flex-Lock Hump Hose from Beefcake Racing
Get the Halltech H-4X3.75-RHH Flex-Lock throttle body hump hose configuration your intake setup requires from Beefcake Racing. For help with Halltech intake components or configuration questions, contact us at sales@beefcakeracing.com or call 1-855-827-7223.
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