Halltech Systems Stinger Throttle Body Hump Hose - No Hole in PCV Hose - No PCV Fitting - No 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 transition between a 4-inch Halltech Stinger-series intake bridge and a 3.75-inch throttle body connection. Built for more than simply joining two different diameters, Halltech's Flex-Lock design combines a flexible hump section with internal grip ridges to create a connection that can accommodate engine movement while maintaining positive engagement with the intake and throttle body.
This version is configured with no hole in the PCV hose, no PCV fitting, and no notch. The 3-inch-long reducing hose uses a seven-layer, Nomex-reinforced silicone construction with a nominal .142-inch wall thickness and includes two stainless steel hose clamps. It is a purpose-built Halltech connection for owners replacing an existing hose or assembling the specified Halltech intake configuration without adding unused PCV provisions or a notch.
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: No notch
- Clamps: Two stainless steel hose clamps included
- Intake Compatibility: 4-inch Halltech Stinger-series intake bridge connection
Features
- Halltech Flex-Lock reducing hump hose design
- Transitions from a 4-inch intake-side connection to a 3.75-inch throttle body-side connection
- Seven-layer Nomex-reinforced silicone construction
- Compliant hump section allows controlled flexibility as the engine moves under load
- Internal grip ridges increase engagement at the throttle body and intake tube connections
- 3-inch overall hose length
- Nominal .142-inch hose thickness
- No PCV hole in this configuration
- No PCV elbow fitting included
- No notch in this configuration
- Includes two stainless steel hose clamps
Halltech Flex-Lock Design
A throttle body coupler has to do more than connect two pieces of an intake. Engine movement and torque continually work the connection while the hose has to remain securely engaged at both ends. Halltech's Flex-Lock design addresses both jobs with a compliant hump section that provides controlled flexibility and internal grip ridges that increase mechanical engagement with the throttle body and intake tube.
Seven-Layer Reinforced Silicone Construction
Halltech mandrel-forms the H-4X3.75-RHH using a seven-layer, Nomex-reinforced silicone construction. The result is a substantial reducing hose designed specifically for intake-system use, with the reinforced construction working together with the flexible hump section rather than relying on a basic straight silicone reducer.
No PCV Hole, No Fitting, No Notch Configuration
This specific H-4X3.75-RHH is configured without a PCV hole, without a PCV elbow fitting, and without a notch. That makes the configuration clear before installation and avoids paying for or adding provisions that are not part of the specified setup.
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
What size connections does the Halltech H-4X3.75-RHH use?
The hose has a 4-inch inside diameter on the intake end for Halltech Stinger-series intake bridges and a 3.75-inch inside diameter on the throttle body end. The hose is 3 inches long with a nominal .142-inch wall thickness.
Does this H-4X3.75-RHH include a PCV provision or notch?
No. This specific configuration has no hole in the PCV hose, does not include a PCV fitting, and is supplied with no notch. Two stainless steel hose clamps are included.
Get Your Halltech Flex-Lock Hump Hose from Beefcake Racing
Replace or complete your Halltech intake connection with the H-4X3.75-RHH Flex-Lock reducing hump hose from Beefcake Racing. For help with your Halltech intake setup or configuration, contact us at sales@beefcakeracing.com or call 1-855-827-7223.
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