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| For this 1.75" high-performance V-band clamp, we use premium AISI 304 stainless steel combined with precision CNC forming to ensure strong and stable radial sealing force even in confined spaces. It is designed for 45 mm ID flanges, with band dimensions accurately controlled at 19 × 1 mm. This size is well suited for racing exhaust systems, external wastegates, and compact turbo manifolds. Its lightweight, high-strength structure helps reduce thermal stress under temperature changes. The quick-lock design allows fast installation and removal in tight spaces. Matching M/F flanges are available, with material customization for specific conditions.For bulk orders or project-based requirements, please feel free to contact us. | |||||||||
This 1.75 inch (45 mm) ID precision V-band clamp is engineered for high-performance sealing in compact, high-pressure exhaust and turbocharging systems. It is the industry standard for connecting external wastegates and small-diameter manifold runners, widely utilized in both professional racing and street performance builds.
In the performance tuning world, the 1.75" size is a specific requirement for the inlet and outlet ports of premium 44mm and 45mm wastegate units, such as the TiAL MVR 44mm, Precision Turbo PW46, and Turbosmart Gen-V Hyper-Gate 45 series. It is also an essential component for custom turbo manifolds and high-flow bypass systems on iconic powerplants like the Nissan Silvia (SR20DET), Subaru WRX STI (EJ25), and Toyota Supra (2JZ-GTE) when running external gate setups. Beyond automotive use, this 45 mm specification is frequently applied in high-end motorcycle exhaust systems—including Ducati and BMW S1000RR mid-pipes—and in micro-gas turbine research where lightweight, vibration-resistant coupling is critical for maintaining absolute gas-tight integrity under extreme thermal cycling.
YDCT is a China-based manufacturer integrating design and production of exhaust flexible components and fastening solutions. With over 20,000 square meters of modern production facilities, our products are supplied to more than 100 countries and regions worldwide. We operate a fully in-house production process covering raw material sourcing, in-house tooling development, precision stamping, high-frequency welding, fine polishing, and leak testing. This ensures each batch of clamps meets international industrial standards in dimensional tolerance, structural strength, and sealing consistency.
In terms of quality assurance, we are certified under IATF 16949, ISO 14001, and ISO 45001 systems. Our facility is equipped with DK77 series CNC wire-cut EDM machines for precision mold manufacturing, allowing tight curvature control and optimal fit between the clamp and pipe diameter at a micron level.
For the standard 1.75" size, we maintain stable inventory to support fast global bulk supply. In addition to standard T-bolt designs, we offer quick-release and safety pin structures to meet the needs of frequent disassembly or high-vibration environments. Material options include SS304, SS316, and high-temperature SS321, depending on exhaust conditions. Matching CNC-machined male/female self-aligning flanges are also available. Parameters such as band width, thickness, and surface treatment can be customized based on specific drawings or application requirements.
Our T-bolts are made from high-strength alloy stainless steel, with threads strengthened through cold rolling. Under typical exhaust conditions below 600°C, they can maintain stable performance for 2–3 years. To prevent thread galling after repeated high-temperature cycles, we recommend using our YDS3 silver-plated nuts. Specific models can be referenced in the V-band clamp specification list.
Yes. We are equipped with laser marking systems and can apply logos or part numbers on the clamp band based on your requirements. In addition to standard SS304, we also stock SS316L (for medical or food-grade piping) and SS321 (for exhaust environments above 900°C). For orders meeting MOQ requirements, we can adjust band thickness or provide customized quick-release structures.
Our 1.75" V-band kit is designed based on a 45 mm inner diameter (ID) standard. The male/female flange steps are CNC machined for precise fitment, making them fully compatible with mainstream 44 mm and 45 mm external wastegates (such as TiAL MVR or Turbosmart series). The 1 mm difference can typically be accommodated during welding, making this size a widely accepted standard for high-performance wastegate piping systems.
