The Turbosmart 2.75" Straight Silicone Hose Coupler – Black (TS-HS275075-BK) is a high-performance silicone connector designed for turbocharger intercooler piping, intake systems, and custom forced-induction applications. Featuring a 2.75-inch (70mm) inside diameter, 75mm (3-inch) overall length, and durable black silicone construction, this coupler provides a reliable connection between compatible intake and charge piping components.

Manufactured using high-quality, multi-layer reinforced silicone, the TS-HS275075-BK is engineered to withstand the demanding temperatures and pressures commonly encountered in performance turbocharger systems. Its four-ply reinforced construction and 5mm wall thickness provide durability while maintaining the flexibility needed to accommodate minor movement between connected components.

Turbosmart rates this silicone hose for temperatures ranging from -50°C to 170°C (-60°F to 340°F) and pressures up to 220 PSI, making it suitable for properly installed, compatible high-performance air piping applications.

Unlike conventional rubber couplers that can deteriorate from prolonged exposure to heat and pressure, Turbosmart's reinforced silicone construction is designed for long-lasting performance and resistance to cracking, hardening, and deformation.

Whether replacing a damaged intercooler coupler, assembling a custom turbocharger piping system, or upgrading the intake plumbing on a Honda K20/K24 turbo build, the Turbosmart TS-HS275075-BK delivers a dependable connection with a clean, understated black finish.

Features

• Genuine Turbosmart Silicone Coupler: Designed for performance intake and turbocharger piping applications.

• 2.75-Inch Inside Diameter: Fits compatible 2.75-inch outside-diameter tubing.

• 75mm Overall Length: Approximately 3 inches long for straight piping connections.

• Four-Ply Reinforced Construction: Provides strength and durability under pressure.

• 5mm Wall Thickness: Reinforced design helps resist deformation and wear.

• Multi-Layer Silicone Material: Engineered for demanding performance applications.

• 220 PSI Pressure Rating: Manufacturer-rated pressure capability under appropriate operating conditions.

• High-Temperature Resistance: Rated for temperatures up to 170°C (340°F).

• Low-Temperature Resistance: Rated for temperatures down to -50°C (-60°F).

• Straight Coupler Design: Connects two compatible sections of equal-diameter piping.

• Black Finish: Provides a clean, factory-inspired engine bay appearance.

• Flexible Construction: Accommodates minor vibration and movement between components.

• Intercooler Piping Compatibility: Suitable for properly sized turbocharger charge piping.

• Intake System Compatibility: Can be used in compatible naturally aspirated or forced-induction intake systems.

• Universal Application: Suitable for custom installations requiring a 2.75-inch straight silicone connector.

• Turbosmart Part Number TS-HS275075-BK: Ensures accurate identification and ordering.

Popular Performance Applications

The Turbosmart TS-HS275075-BK is a universal silicone hose coupler intended for applications using compatible 2.75-inch outside-diameter piping.

Popular performance applications include:

• Honda Civic K20 Turbo Builds: Custom intercooler and charge piping connections.

• Honda Civic K24 Turbo Builds: Turbocharger intake and intercooler piping.

• Acura RSX Type-S Turbo Builds: Custom K20 forced-induction plumbing.

• Acura TSX K24 Turbo Applications: Aftermarket turbocharger piping connections.

• Honda Accord K-Series Turbo Builds: Custom intake and charge piping installations.

• Honda S2000 Turbo Builds: F20C and F22C intercooler piping systems.

• Acura Integra Turbo Builds: B-Series and K-Series forced-induction applications.

• Honda Prelude Turbo Builds: Custom H-Series and K-Series intake piping.

• K20/K24 Frankenstein Turbo Builds: High-performance charge piping configurations.

• B16, B18, and B20 Turbo Builds: Intercooler and turbocharger piping connections.

• Subaru WRX and STI Turbo Builds: Compatible aftermarket charge piping.

• Mitsubishi Evolution Turbo Builds: Custom intercooler piping systems.

• Nissan SR20DET and RB-Series Turbo Builds: Aftermarket turbocharger plumbing.

• Toyota 1JZ and 2JZ Turbo Builds: High-performance intake and charge piping systems.

• Drag Racing Applications: Reinforced silicone connections for compatible piping.

• Roll Racing Applications: Custom forced-induction plumbing.

• Track and Motorsport Vehicles: High-temperature intake and intercooler connections.

Important: This is a universal silicone coupler, not a vehicle-specific direct-fit replacement. Fitment is determined by the outside diameter of the piping, available installation space, and the required coupler length.

Additional Information

• Manufacturer: Turbosmart
• Part Number: TS-HS275075-BK
• Product Name: Straight Silicone Hose – 2.75" ID x 75mm
• Product Type: Straight Silicone Hose Coupler
• Inside Diameter: 2.75 Inches (Approximately 70mm)
• Overall Length: 75mm (Approximately 3 Inches)
• Wall Thickness: 5mm
• Reinforcement: Four-Ply
• Material: Multi-Layer Reinforced Silicone
• Color: Black
• Maximum Rated Pressure: 220 PSI
• Temperature Range: -50°C to 170°C
• Temperature Range (Fahrenheit): Approximately -60°F to 340°F
• Connection Style: Straight / Equal Diameter
• Primary Application: Intercooler, Intake, and Charge Piping Connections
• Vehicle Fitment: Universal, Based on Piping Dimensions
• Quantity: One Coupler
• UPC: 9329677011449

2.75-Inch Inside Diameter

The TS-HS275075-BK features a nominal 2.75-inch inside diameter, equivalent to approximately 70mm.

This measurement refers to the internal opening of the silicone coupler, not its outside diameter.

The coupler is designed to fit over compatible tubing with a nominal outside diameter of 2.75 inches.

Important: Always measure the outside diameter of the existing piping before ordering. A 2.75-inch coupler should not be confused with a 2.5-inch or 3-inch coupler.

75mm Straight Coupler Length

The coupler measures approximately 75mm, or 3 inches, in overall length.

Its compact straight design makes it suitable for joining two sections of equal-diameter piping where only a short connection is required.

Common uses include:

• Connecting intercooler piping sections.

• Joining turbocharger charge pipes.

• Connecting intake tubing.

• Replacing damaged straight silicone connectors.

• Completing custom aluminum or stainless steel piping assemblies.

The available installation space and required clamp engagement should be verified before installation.

Four-Ply Reinforced Silicone Construction

Turbosmart manufactures this coupler using four-ply reinforced silicone construction.

The multiple reinforcement layers help provide strength and dimensional stability under pressure.

This design is particularly beneficial in turbocharger systems where charge piping connections experience repeated pressure changes and elevated temperatures.

The reinforced construction also helps maintain the coupler's shape during normal operation.

5mm Wall Thickness

The TS-HS275075-BK features a 5mm wall thickness.

This reinforced wall construction helps resist deformation, tearing, and premature wear when properly installed.

The combination of silicone flexibility and reinforcement provides a balance between durability and ease of installation.

220 PSI Pressure Rating

Turbosmart rates this silicone coupler for pressures up to 220 PSI.

This manufacturer rating describes the hose's specified pressure capability and should not be interpreted as a guarantee that an assembled piping connection will safely withstand that pressure.

Actual connection integrity depends on:

• Pipe dimensions and surface condition.

• Properly formed retaining beads.

• Clamp selection and installation.

• Operating temperature.

• Hose condition.

• System configuration.

For turbocharger applications, properly sized clamps and suitable pipe-end retention are essential.

High-Temperature Silicone Construction

The TS-HS275075-BK is designed to withstand temperatures from approximately -50°C to 170°C.

This makes it suitable for many intake and intercooler piping applications exposed to elevated engine bay temperatures.

Silicone is generally more resistant to heat-related deterioration than conventional rubber hose materials.

However, the coupler should not be installed in direct contact with exhaust manifolds, turbine housings, or other components that exceed its rated temperature range.

Straight Coupler vs. Silicone Reducer

The TS-HS275075-BK is a straight, equal-diameter coupler.

Both ends have the same nominal 2.75-inch inside diameter.

It is not designed to transition between different piping sizes.

For applications connecting different pipe diameters, a properly sized silicone reducer should be used instead.

Black Silicone Finish

The black finish provides a subtle, factory-inspired appearance that complements both stock-style and custom performance engine bays.

Black silicone is a popular choice for enthusiasts seeking clean, understated intake and intercooler piping installations.

The finish also coordinates well with black aluminum piping, stainless steel clamps, and aftermarket turbocharger components.

Silicone Coupler vs. Conventional Rubber

Compared with many conventional rubber connectors, reinforced silicone couplers offer advantages in demanding intake and charge piping applications.

These can include:

• Improved resistance to elevated temperatures.

• Greater resistance to hardening and cracking.

• Reinforced construction for pressure applications.

• Flexible installation characteristics.

• Long-lasting performance when properly installed.

Actual durability depends on operating conditions, installation quality, and maintenance.

Recommended Clamps

The TS-HS275075-BK should be secured using properly sized hose clamps appropriate for the application.

For turbocharger charge piping, high-quality T-bolt clamps are commonly used.

The correct clamp size must account for the coupler's outside diameter, including its 5mm wall thickness.

Important: Clamps are not included with this coupler and must be purchased separately.

Oil and Chemical Exposure

Silicone couplers are intended primarily for air and charge piping applications.

Standard silicone is not inherently suitable for continuous exposure to engine oil, fuel, or other petroleum-based liquids.

Applications involving significant oil contamination or fluid contact may require a specially lined hose designed for that service.

Always verify material compatibility before using this coupler outside its intended air piping application.

Common Reasons for Replacement

• Damaged Intercooler Coupler: Replaces a torn, cracked, or deteriorated silicone connection.

• Boost Leaks: Helps repair leaking charge piping connections when the coupler is the source.

• Turbocharger Upgrades: Provides a reinforced connection for custom turbo piping.

• Intercooler Installation: Connects compatible 2.75-inch piping sections.

• Custom Intake Fabrication: Provides a flexible connection between intake tubing components.

• Aging Rubber Hoses: Upgrades suitable original rubber connections to reinforced silicone.

• Piping Modifications: Accommodates changes to intake or intercooler routing.

• Engine Bay Appearance: Adds a clean black silicone finish.

• High-Temperature Applications: Replaces unsuitable connectors in properly rated installations.

• Performance Engine Builds: Supports custom forced-induction plumbing.

• Preventative Maintenance: Replaces worn couplers before they develop leaks.

• Motorsport Applications: Provides a reinforced connection for compatible performance piping.

Installation Notes

1. Verify Pipe Diameter: Confirm that both connecting pipes have a nominal outside diameter of 2.75 inches.

2. Measure Available Space: Ensure the installation accommodates a 75mm straight coupler.

3. Allow the Engine to Cool: Avoid working around hot turbocharger and exhaust components.

4. Remove the Existing Coupler: Loosen the clamps and carefully remove the original connector.

5. Inspect the Piping: Check for cracks, sharp edges, damaged retaining beads, or deformation.

6. Clean the Pipe Ends: Remove dirt, oil, and debris from the mating surfaces.

7. Inspect the New Coupler: Verify that the silicone is free of cuts or damage.

8. Position the Hose Clamps: Install appropriately sized clamps before sliding the coupler into place.

9. Install the Coupler: Slide the silicone connector over both pipe ends.

10. Verify Pipe Engagement: Ensure sufficient overlap on both sides for secure clamping.

11. Check Alignment: Avoid twisting or excessively stretching the coupler.

12. Position the Clamps: Place the clamps correctly relative to the pipe retaining beads.

13. Tighten the Clamps: Follow the clamp manufacturer's recommended tightening procedure.

14. Avoid Overtightening: Excessive clamp force can damage the silicone hose.

15. Inspect Clearance: Keep the coupler away from sharp edges, moving components, and excessive exhaust heat.

16. Perform a Boost Leak Test: Pressure-test the assembled charge piping at an appropriate test pressure.

17. Check for Movement: Verify that the coupler remains securely positioned.

18. Perform Controlled Initial Testing: Monitor the system for leaks or unexpected pressure loss.

19. Reinspect After Installation: Check the coupler and clamp security after initial operation.

Important: Proper clamp selection, pipe-end retention, and installation are essential for preventing coupler separation under boost pressure.

What's Included

• (1) Turbosmart Straight Silicone Hose Coupler – 2.75" ID x 75mm, Black (TS-HS275075-BK)

Note: This listing includes one straight silicone coupler only. Hose clamps, piping, intercooler components, and other installation accessories are not included.

Upgrade your intake or intercooler piping with the Turbosmart 2.75" ID x 75mm Straight Silicone Hose Coupler – Black (TS-HS275075-BK).

Featuring four-ply reinforced silicone construction, a 5mm wall thickness, a 220 PSI manufacturer pressure rating, and temperature resistance from -50°C to 170°C, this durable coupler is engineered for reliable performance in demanding intake and turbocharger piping applications.

Whether replacing a damaged intercooler connection, fabricating a custom turbo system, or completing a high-performance Honda K20/K24 build, the Turbosmart TS-HS275075-BK provides a strong, flexible, and dependable connection with a clean black finish.