Halltech Systems Stinger Throttle Body Hump Hose - 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 the 4-inch to 3.75-inch transition required for compatible Halltech intake systems while incorporating the PCV hole and added notch specified for this configuration. Halltech designed its Flex-Lock hose to do more than connect two different diameters. A compliant hump section accommodates engine movement and torque, while internal grip ridges increase engagement at the intake and throttle body connections.
This version comes with the PCV hole already added to the hose, does not include the optional PCV elbow fitting, and includes the added notch. The 3-inch-long hose is mandrel-formed from seven-layer, Nomex-reinforced silicone with a nominal .142-inch wall thickness. Two stainless steel hose clamps are included, and Halltech specifically identifies the added notch for its 2005-2007 C6 LS2 Venom V2026 system.
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: 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
- Transitions from a 4-inch intake connection to a 3.75-inch throttle body connection
- PCV hole included in the hose for this configuration
- No PCV elbow fitting included
- Added notch included
- Notch configuration specified by Halltech for its 2005-2007 C6 LS2 Venom V2026 system
- 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
PCV Hole with Added Notch Configuration
This H-4X3.75-RHH is supplied with the PCV hole already incorporated into the hose and with the added notch. The PCV elbow fitting is not included with this version. Halltech specifically instructs customers to request the notch when using this hose with its 2005-2007 C6 LS2 Venom V2026 system, making the configuration an important distinction when selecting the correct replacement hose.
Halltech Flex-Lock Design
The intake-to-throttle-body connection has to stay secure even as the engine moves under acceleration, deceleration, and changing loads. Halltech's Flex-Lock design uses a compliant hump section to provide controlled flexibility instead of forcing the entire connection to remain rigid. Internal grip ridges at each end increase engagement with the intake tube and throttle body, combining movement capability with positive mechanical grip.
Seven-Layer Nomex-Reinforced Silicone
Halltech mandrel-forms the H-4X3.75-RHH from seven-layer, Nomex-reinforced silicone. The reinforced construction, nominal .142-inch wall thickness, and flexible hump section work together to create a purpose-built intake transition rather than a basic straight silicone reducer.
4-Inch to 3.75-Inch Reducing Design
The intake end uses a 4-inch inside diameter designed for Halltech Stinger-series intake bridges, while the opposite end reduces to a 3.75-inch inside diameter for the throttle body connection. The diameter change is built directly into the 3-inch-long hose, eliminating the need to stack separate couplers and reducers to make the 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 H-4X3.75-RHH include both the PCV hole and notch?
Yes. This specific configuration comes with the PCV hole already added to the hose and includes the notch. The optional PCV elbow fitting is not included.
Why does this H-4X3.75-RHH have a notch?
Halltech specifically instructs customers to request the added notch when using the hose with its 2005-2007 C6 LS2 Venom V2026 system. This version is supplied with that notch already specified.
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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