1.5" X 14" (38mm X 350mm) SS304 Exhaust Flex Pipe with Extensions

Main Applications of 1.5" Exhaust Flex Pipe

Our automotive exhaust flex pipes are mainly produced in sizes from 1.75" to 4". This 1.5" (approx. 38 mm) ID flex pipe belongs to the small-diameter precision category, with highly specific and technical application scenarios. In high-performance automotive modification, it is commonly used as a standard component for 38 mm external wastegate bypass piping, where it absorbs thermal expansion stress between the turbo exhaust manifold and the wastegate, helping prevent cracks in flanges and welds under high-pressure conditions.

It is also widely used in small-displacement motorcycles and ATV/UTV vehicles in the 250cc to 500cc range, acting as a vibration isolator between the engine and muffler to protect the exhaust system from high-frequency resonance. In industrial applications, it serves as a key vibration-damping component in exhaust systems for truck auxiliary power units (APU), RV generator sets (such as Cummins Onan models), and diesel heaters. The 1.5" size effectively isolates mechanical vibration from small internal combustion engines, helping maintain long-term structural integrity of the exhaust system.

Professional 1 1/2" Exhaust Flex Pipe Supplier

Looking for a reliable exhaust flex pipe supplier? YDCT is a direct manufacturer in China, integrating design and production with a facility covering over 20,000 square meters. With more than a decade of export experience, our products are supplied to over 100 countries worldwide. From stainless steel forming to final packaging and inspection, all processes are completed in-house to ensure consistent batch quality.

Our production lines are equipped with advanced high-frequency induction welding systems and precision bellows forming equipment, ensuring uniform wall thickness across each convolution. We operate under the IATF 16949 automotive quality management system, along with ISO 14001 (environmental) and ISO 45001 (occupational health and safety) certifications. Unlike some lower-durability alternatives on the market, we focus on producing robust exhaust flex pipes and providing one-stop flexible connection solutions for professional repair shops and performance workshops.

FAQ

Do you offer 1.5" flex pipe options for different installation methods?

Yes. In addition to the weld-on type with extensions, we also offer clamp-on solutions. The clamp version is supplied with high-strength U-bolt clamps and high-temperature sealing paste. For general repair markets, we recommend the weld-on type with extensions, as it provides greater flexibility across different engine applications.

Can the length of the extension pipes be customized?

Yes. As a direct manufacturer, we can adjust the extension length based on your requirements. For example, if longer weld sections are needed for easier operation in tight engine bays, we can produce 3-inch or longer ends using CNC automatic cutting, ensuring smooth edges ready for direct welding.

How do you handle packaging for bulk orders to prevent deformation during long-distance shipping?

Exhaust flex pipes are sensitive to compression. For bulk orders, each 1.5" unit can be individually sealed in plastic and packed into reinforced five-layer export cartons. Inside, custom foam inserts or dividers are used to prevent contact between parts. For pallet shipments, we add corner protection and stretch wrapping to ensure products maintain their original shape during international transport.