The Stainless Bros 1/2-inch OD exhaust hanger rod is an essential component for custom exhaust fabrication and repair. Measuring 12 inches in length, this rod provides a versatile starting point for creating custom mounting points on exhaust piping or vehicle chassis. The integrated mushroom end is specifically designed to prevent rubber exhaust isolators from slipping off, ensuring the exhaust system remains securely positioned even under heavy vibration.

• Diameter: 1/2-inch OD
• Length: 12.0 inches
• Material: Stainless Steel
• End Type: Mushroom end for secure isolator retention
• Manufacturer Part Number: 608-01200-0012

Built for long-term durability, the stainless steel construction offers excellent resistance to corrosion and heat, making it ideal for the harsh environment beneath the vehicle. This hanger rod is a reliable choice for professional fabricators and DIYers looking to build a secure, lasting exhaust setup.

Seal unused motorcycle oxygen sensor ports with the Stainless Bros M12x1.25 O2 Sensor Bung Plug. This specialized hardware is designed for riders and tuners who need to securely close off an exhaust bung after removing a factory sensor or a temporary wideband O2 sensor. Using a dedicated plug protects the bung threads from carbon buildup and environmental corrosion.

Fabricated from high-grade stainless steel, this plug is built to withstand extreme exhaust temperatures without seizing. Each plug includes a copper crush washer to ensure a positive, gas-tight seal, preventing exhaust leaks that can affect engine performance and tuning accuracy. This part is a direct fit for standard M12x1.25 exhaust bungs common on many motorcycle applications.

• Thread Pitch: M12x1.25
• Material: Corrosion-resistant stainless steel
• Seal: Includes copper crush washer for leak-free installation
• Manufacturer Part Number: 608-00700-0000

The Stainless Bros 3.5-inch 304 Stainless Steel Slip Joint Connector Set provides a professional-grade solution for custom exhaust fabrication. This male and female pairing is designed to create a secure, slip-fit junction that allows for easy disassembly of exhaust sections and accommodates natural thermal expansion during heat cycles.

Precision-engineered from 304 stainless steel, these connectors offer excellent corrosion resistance and durability in high-heat environments. They are ideal for modular exhaust systems, allowing for quick adjustments or removal of components like headers and mid-pipes without the bulk of heavy flanges. When secured with a high-quality exhaust clamp, these connectors provide a reliable, low-profile seal.

• Material: 304 Stainless Steel (304SS)
• Size: 3.5-inch Outside Diameter
• Configuration: One (1) Male and one (1) Female connector set
• Application: Custom exhaust systems, headers, and downpipes
• MPN: 605-08906-0000

This Stainless Bros 3.0-inch slip joint connector set provides a reliable, modular solution for custom exhaust fabrication. Engineered for builders who require a secure yet removable connection, this male and female set allows for quick disassembly of exhaust sections without the need for bulky flanges. The precision-machined fitment ensures a tight seal and streamlined profile in high-clearance areas.

Each component is constructed from premium 304 stainless steel, offering excellent corrosion resistance and long-term durability under high-heat conditions. This connector set is an essential component for high-performance exhaust systems, turbo manifolds, and downpipes where modularity and serviceability are priorities.

• Manufacturer Part Number: 605-07606-0000
• Material: 304 Stainless Steel (304SS)
• Diameter: 3.0 in
• Connection Type: Female/Male Slip Joint Set
• Designed for custom exhaust fabrication and modular assembly

This Stainless Bros 4.0-inch Marmon style turbine outlet flange is engineered for precision exhaust fabrication on high-performance turbocharger setups. Specifically designed to interface with Borg Warner S200, S300, and S400 series turbo housings, this flange provides a reliable, professional-grade transition for custom downpipe construction.

Constructed from high-grade 304 stainless steel, this flange offers superior corrosion resistance and handles the extreme thermal cycling common in forced induction systems. The 4.21-inch outer diameter (OD) Marmon profile ensures a secure, leak-free seal when used with a compatible V-band clamp, maintaining exhaust velocity and turbocharger efficiency.

• Material: 304 Stainless Steel (304SS)
• Inner Diameter: 4.0 in
• Flange Profile: 4.21 in Marmon Style
• Compatibility: Borg Warner S200, S300, and S400 S-Series Turbochargers
• Manufacturer Part Number: 603-10719-4000

Secure your exhaust or forced induction system with the Stainless Bros 3.0-inch V-band assembly. Fabricated entirely from 304 stainless steel, this kit is engineered for high-heat durability and superior corrosion resistance in custom exhaust, downpipe, and turbo applications. V-band connections provide a reliable, gasket-free seal and allow for rapid disassembly of modular system components compared to traditional multi-bolt flanges.

This complete assembly includes two precision-machined 304SS flanges and a matching heavy-duty V-band clamp, ensuring a perfectly aligned and leak-free fit for 3-inch OD tubing.

• Material: 304 Stainless Steel (304SS)
• Inlet/Outlet Size: 3.0 inch (76mm)
• Connection Type: V-Band Clamp & Flange
• Kit Components: 2 Flanges, 1 V-Band Clamp
• Manufacturer Part Number: 603-07610-0002

This Stainless Bros 2.50-inch V-band assembly provides a professional-grade, leak-free solution for modular exhaust systems, downpipes, and turbocharger piping. Engineered for fabrication specialists, this kit allows for quick disassembly and reassembly without the need for traditional gaskets, making it an essential component for race vehicles or high-performance street builds requiring frequent maintenance or component swaps.

Constructed entirely from 304 stainless steel, this assembly is built to withstand high-heat environments and resist corrosion over time. The precision-machined flanges ensure a flat, uniform mating surface, while the heavy-duty clamp provides the necessary tension to maintain an airtight seal under pressure.

• Material: 304 Stainless Steel (304SS)
• Size: 2.50-inch (63.5mm)
• Includes: Two (2) V-band flanges and one (1) V-band clamp
• Manufacturer Part Number: 603-06310-0002
• Application: Universal exhaust and intake fabrication

Engineered for high-performance fabrication, the Stainless Bros 5-inch 90-degree mandrel bend elbow (MPN 601-12756-3100) offers a precision solution for tight-clearance plumbing. Unlike standard crush bends, the mandrel bending process ensures the tube maintains its full 5-inch diameter throughout the entire 90-degree sweep, eliminating flow restrictions and turbulence in exhaust, intake, or cooling systems.

• Diameter: 5.00 inches
• Bend Angle: 90 Degrees
• Centerline Radius: 1D (5.00 inches)
• Construction: Precision mandrel bent for uniform wall thickness
• Material: High-grade stainless steel for maximum durability and weldability
• Manufacturer Part Number: 601-12756-3100

The 1D radius configuration is specifically designed for fabricators working in constrained spaces where a traditional larger radius bend will not fit. This component is suitable for custom diesel exhaust systems, large-bore turbo inductions, and industrial piping applications where maintaining maximum volumetric flow is critical.

This Stainless Bros 90-degree elbow is engineered for high-performance exhaust, intake, and intercooler fabrication where precision and durability are paramount. Constructed from premium 304 stainless steel (SS304), this 4-inch mandrel-bent elbow features a tight 1.5D radius and a "No Leg" design, making it an ideal choice for custom routing in compact engine bays where space is at a premium.

• Material: 304 Stainless Steel (SS304)
• Outer Diameter: 4.00 inches
• Bend Angle: 90 Degrees
• Bend Radius: 1.5D
• Wall Thickness: 16-Gauge (0.065")
• Design: No Leg (No straight tangents)
• Manufacturer Part Number: 601-10256-3150

The 16-gauge wall thickness ensures excellent weldability and structural integrity while minimizing weight. This component is designed for professional fabricators requiring consistent wall thickness and high corrosion resistance for high-end automotive projects.

This Stainless Bros 4-inch 45-degree elbow is a precision-engineered component designed for high-performance exhaust fabrication, intake piping, and custom forced induction setups. Manufactured from high-grade SS304 stainless steel, it provides excellent corrosion resistance and durability under high-heat conditions.

Featuring a 1.5D (6-inch) centerline radius, this mandrel-bent elbow maintains a consistent 4-inch diameter throughout the bend to ensure maximum flow efficiency and minimal turbulence. The 16-gauge (.065-inch) wall thickness is the industry standard for automotive fabrication, offering the necessary wall mass for clean TIG welding without excessive weight. This "no leg" version is cut at the tangent, making it ideal for tight packaging where every millimeter of clearance matters.

• Material: 304 Stainless Steel (SS304)
• Outside Diameter: 4.00 inches
• Wall Thickness: 16GA (.065")
• Bend Angle: 45 Degrees
• Centerline Radius: 1.5D (6.0")
• Finish: Raw/Brushed
• Part Number: 601-10226-3150

This Stainless Bros 3.5-inch 45-degree bend elbow is a high-grade fabrication component designed for custom exhaust systems, turbo manifolds, and intake plumbing. Constructed from premium 304 stainless steel, it provides excellent corrosion resistance and durability for high-heat automotive environments.

Engineered for tight packaging, this mandrel bend features a 1D (one times the diameter) center line radius, allowing for efficient routing in compact engine bays. The 16-gauge (.065-inch) wall thickness ensures structural integrity while remaining compatible with standard TIG welding processes. Each elbow includes straight leg extensions to simplify fitment and welding to adjacent tubing.

• Material: 304 Stainless Steel
• Outer Diameter: 3.5 inches
• Bend Angle: 45 Degrees
• Center Line Radius (CLR): 1D / 3.5 inches
• Wall Thickness: 16GA / 0.065 inches
• Construction: Mandrel Bent
• Manufacturer Part Number: 601-08926-4100

This Stainless Bros 3-inch 90-degree mandrel bend is engineered for high-performance exhaust and intake fabrication where space is at a premium. Featuring a 3-inch Center Line Radius (CLR)—representing a 1D ratio—this bend provides a tight, consistent radius without the flow-restricting deformation or thinning found in standard crush-bent tubing.

The "No Leg" design means the bend terminates at the tangent points, allowing for maximum flexibility and precise fitment in compact engine bays or tight chassis tunnels. This component is essential for fabricators building custom headers, downpipes, or intercooler piping that requires uniform wall thickness and professional-grade stainless steel construction.

• Diameter: 3.0 inches
• Bend Angle: 90 Degrees
• Center Line Radius (CLR): 3.0 inches (1D)
• Leg Configuration: No Leg (Tangent-to-Tangent)
• Construction Type: Mandrel Bent
• Manufacturer Part Number: 601-07656-3100

This Stainless Bros 3-inch 45-degree leg mandrel bend is engineered for fabricators building high-performance exhaust systems, intake paths, and custom turbo plumbing. Using a mandrel bending process, the tube maintains a consistent internal diameter and wall thickness throughout the 45-degree sweep, preventing the flow restrictions often found in crush-bent alternatives.

Constructed from premium stainless steel, this bend features extended legs to provide extra material for precise trimming, fitment, and welding. The 4.5-inch Center Line Radius (CLR) follows a 1.5D specification, offering an ideal balance between tight-packaging capability and optimal exhaust scavenging.

• Diameter: 3 inches
• Bend Angle: 45 Degrees
• Center Line Radius (CLR): 4.5 inches (1.5D)
• Material: Stainless Steel
• Bend Type: Mandrel Bent with Extended Legs
• Manufacturer Part Number: 601-07626-4150

This Stainless Bros 180-degree mandrel bend is engineered for fabricators building custom exhaust systems, intake piping, or cooling solutions where tight clearances and maximum flow are critical. Utilizing a precision mandrel-bending process, this tube maintains a consistent 2.50-inch diameter throughout the bend, preventing the flow restrictions often found in crush-bent alternatives.

Featuring a 1.5D (3.75-inch) center line radius, this U-bend provides a compact turn without sacrificing structural integrity. Each side includes a 6-inch straight leg, giving you sufficient material for custom trimming, fitting, and welding into your specific layout.

• Diameter: 2.50in OD
• Bend Angle: 180 Degree (U-bend)
• Radius: 1.5D / 3.75in CLR (Center Line Radius)
• Leg Length: 6in / 6in
• Construction: Precision Mandrel Bent
• MPN: 601-06396-1150

This Stainless Bros 90-degree mandrel bend is engineered for high-performance fabrication projects where flow efficiency and space constraints are critical. Featuring a tight 1D (1 x Diameter) centerline radius, this 2.50-inch diameter tube maintains its internal cross-section throughout the bend, preventing the turbulence and restriction common with crush-bent alternatives.

• Outer Diameter: 2.50 inches
• Bend Angle: 90 Degrees
• Centerline Radius (CLR): 2.50 inches (1D)
• Construction: Precision mandrel bent for consistent wall thickness and flow
• Manufacturer Part Number: 601-06356-4100

Ideal for custom exhaust systems, turbo manifolds, and intake piping, this mandrel bend provides the material consistency needed for professional-grade welding and assembly in tight-clearance environments.

This Stainless Bros mandrel bend is engineered for precision exhaust fabrication, intake piping, and custom cooling systems. By utilizing a mandrel bending process, the tube maintains its full 2.50-inch diameter throughout the 90-degree curve, ensuring maximum flow and minimal turbulence compared to standard crush bends.

• Outer Diameter: 2.50 in
• Bend Angle: 90 Degrees
• Center Line Radius (CLR): 3.75 in (1.5D)
• Leg Lengths: 5 in and 8 in
• Construction: Mandrel bent for uniform wall thickness and flow
• Manufacturer Part Number: 601-06356-1150

These bends are ideal for professional fabricators requiring consistent tolerances for headers, downpipes, and high-performance plumbing applications.

The Stainless Bros 2.50-inch 45-degree mandrel bend is a critical component for fabricators building high-flow exhaust or intake systems. By utilizing a mandrel bending process, the tube maintains its 2.50-inch cross-section throughout the entire 45-degree arc, ensuring minimal turbulence and backpressure compared to standard crush-bent alternatives.

• Diameter: 2.50"
• Bend Angle: 45 Degrees
• Bend Radius: 1.5D (3.75" Center Line Radius)
• Fabrication Style: Mandrel bent leg
• Manufacturer Part Number: 601-06326-4150

Designed for precise fitment in custom automotive applications, this bend provides the consistent wall thickness and geometry required for professional welding and assembly in performance exhaust, downpipes, and intercooler piping.

Fabricate custom exhaust systems or intake plumbing with precision using the Stainless Bros 2.50in 45-degree mandrel bend. Engineered for high-performance applications where space is at a premium, this tight 1D radius bend ensures maximum flow efficiency without the diameter restriction typical of crush-bending. The "no leg" configuration provides a clean bend that ends right at the tangent point, making it an ideal choice for compact assemblies, header fabrication, and intricate pie-cutting projects.

• Diameter: 2.50in
• Bend Angle: 45 Degrees
• Centerline Radius: 1D (2.50in)
• Finish: Natural
• Leg Style: No Leg (Tangent Point End)
• Manufacturer Part Number: 601-06326-3100

This 90-degree mandrel bend from Stainless Bros is engineered for high-precision custom fabrication where space is at a premium. Featuring a 1.75-inch outside diameter and a matching 1.75-inch Center Line Radius (CLR), this 1D bend maintains consistent tube geometry and flow characteristics throughout the curve.

Designed with a specialized "no leg" configuration, this component is ideal for tight-clearance applications such as manifold construction, compact exhaust routing, or cooling system plumbing. The mandrel bending process ensures there is no thinning or collapsing of the tube walls, providing a high-strength foundation for TIG or MIG welding projects.

• Brand: Stainless Bros
• Part Number: 601-04556-3100
• Outside Diameter: 1.75 inch
• Bend Angle: 90 Degrees
• Center Line Radius (CLR): 1.75 inch (1D)
• Wall Thickness: .65 inch
• Configuration: No Leg (End-to-End Bend)
• Process: Mandrel Bent

This Stainless Bros 1.75-inch diameter 45-degree mandrel bend is engineered for professional-grade custom fabrication, including exhaust systems, headers, and intake tracks. Mandrel bending ensures the tubing maintains a constant internal diameter throughout the bend, eliminating the flow-restricting profile changes found in standard crush-bent piping.

This component features a 1.5D (2.62-inch) Center Line Radius (CLR), providing a compact yet efficient flow path. With generous 6.5-inch leg lengths on both sides, fabricators have ample material for precise trimming, welding, and fitment in complex automotive layouts. Built by Stainless Bros to exacting tolerances, this bend provides the consistency required for high-performance builds.

• Diameter: 1.75 in
• Bend Angle: 45 Degrees
• Center Line Radius (CLR): 2.62 in (1.5D)
• Leg Length: 6.5 in (Both Legs)
• Construction: Precision Mandrel Bent
• Manufacturer Part Number: 601-04526-8150

This Stainless Bros 45-degree mandrel bend elbow is a professional-grade solution for custom automotive fabrication. Constructed from premium 304 stainless steel (SS304), it offers superior corrosion resistance and durability for high-heat applications like exhaust systems, intake piping, and cooling paths. The mandrel bending process maintains a consistent internal diameter throughout the 45-degree sweep, ensuring optimal flow characteristics for your custom project.

• Material: 304 Stainless Steel (SS304)
• Outside Diameter: 1.75 inch
• Bend Angle: 45 Degree
• Bend Radius: 1.5D / 2.625 inch Center Line Radius (CLR)
• Wall Thickness: 16GA / .065 inch
• Features: Integrated tangent legs for easier alignment and welding
• Part Number: 601-04526-4150

This Stainless Bros 90-degree mandrel bend is engineered for high-precision fabrication in tight engine bays or custom exhaust systems. Featuring a 1.50-inch outside diameter and a matching 1.50-inch center line radius (1D), this component provides the tightest possible turn while maintaining consistent wall thickness and internal diameter for optimal flow.

• Diameter: 1.50"
• Bend Angle: 90 Degrees
• Center Line Radius (CLR): 1.50" (1D)
• Style: No Leg (cut at the radius for tight packaging)
• Mandrel bent to prevent wrinkling or collapse
• Manufacturer Part Number: 601-03856-3100

The "no leg" design is specifically intended for builders who need to weld directly to the radius, making it an essential component for custom manifold construction, cooling system hard lines, or compact intake piping where space is at a premium.

Engineered for professional fabricators and exhaust specialists, the Stainless Bros SS304 3-inch X-Pipe Weld Kit provides the essential crossover component for high-performance dual exhaust systems. Fabricated from premium T304 stainless steel, this X-pipe is designed to balance exhaust pulses between cylinder banks, significantly improving scavenging and smoothing out the exhaust note for a more refined, high-pitched tone.

• Material: High-grade SS304 stainless steel for maximum corrosion resistance and weldability.
• Tubing Diameter: 3-inch (76mm) for high-flow exhaust applications.
• Design: Precision-cut X-pipe configuration for optimal exhaust gas merging.
• Installation: Weld-on kit requiring professional fabrication.
• Manufacturer Part Number: 622-07676-9002

This weld-on kit is the ideal solution for custom builds where off-the-shelf crossover pipes do not meet the required tolerances or material standards. Its durable construction ensures it can withstand the extreme heat and environmental stress of a high-performance drivetrain.

Engineered for high-performance exhaust systems and custom fabrication, this Stainless Bros 3.0-inch valve provides precise control over exhaust flow and acoustics. Designed with a Normally Closed (NC) configuration, the valve remains shut during vacuum or idle conditions and utilizes boost pressure to actuate the opening mechanism. This setup is ideal for bypass or cutout applications where a quiet idle is preferred, but maximum flow is required under load.

Constructed entirely from 304 stainless steel, this valve is built to survive the high-heat environment of a performance exhaust while maintaining excellent corrosion resistance. The heavy-duty actuator ensures consistent operation even under extreme thermal stress.

• Bore Diameter: 3.0 inches (76mm)
• Operation: Normally Closed / Boost Open
• Material: 304 Stainless Steel
• Application: Custom exhaust bypass or cutout systems
• Manufacturer Part Number: 618-07622-0000

This Stainless Bros oval muffler is engineered for high-performance exhaust fabrication where durability and compact packaging are required. Constructed from premium SS304 stainless steel, this muffler provides exceptional corrosion resistance and a show-quality polished finish that maintains its appearance under high thermal stress.

Featuring a 3.5-inch diameter and a 12.0-inch overall length (OAL), this universal muffler is an ideal choice for custom exhaust systems on vehicles where ground clearance or chassis space is limited. The oval body design helps achieve a deep, refined exhaust note while maximizing flow efficiency.

• Material: 304 Stainless Steel (SS304)
• Finish: Polished
• Diameter: 3.5in
• Overall Length (OAL): 12.0in
• Configuration: Oval body for custom fitment
• Manufacturer Part Number: 616-08913-2100

This Stainless Bros thin oval muffler is engineered for custom exhaust builders requiring a high-clearance solution without compromising on flow. Fabricated from premium SS304 stainless steel, this muffler features a 3-inch dual inlet and 3-inch dual outlet configuration, making it ideal for high-performance dual exhaust systems. The thin oval profile allows for tighter packaging in vehicle chassis where ground clearance is a priority.

• Construction: T304 Stainless Steel (SS304) for maximum corrosion resistance
• Configuration: 3" Dual Inlet / 3" Dual Outlet
• Profile: Thin Oval for low-profile fitment
• Overall Length (OAL): 17 inches
• Finish: Mirror polished for a show-quality appearance
• Manufacturer Part Number: 616-07623-2250

The Stainless Bros 3.0in x 17.0in OAL SS304 Muffler is engineered for custom exhaust builders and performance enthusiasts who require a high-quality, corrosion-resistant solution for sound management. Fabricated entirely from 304 stainless steel (SS304), this muffler offers superior durability and resistance to oxidation compared to standard aluminized or 409-grade alternatives.

The unit features a mirror-polished finish, making it an excellent choice for vehicles where the exhaust system is visible. With a 17.0-inch overall length and a 3.0-inch diameter, it provides the internal volume necessary to refine exhaust notes on high-flow systems without significantly impeding gas velocity.

• Material: High-grade 304 Stainless Steel (SS304)
• Finish: Mirror Polished
• Overall Length (OAL): 17.0 inches
• Diameter: 3.0 inches
• Manufacturer Part Number: 616-07623-2100

This Stainless Bros universal oval muffler is engineered for high-performance exhaust systems requiring maximum durability and a premium aesthetic. Constructed from high-grade SS304 stainless steel, this muffler provides superior corrosion resistance to withstand the rigors of high-heat cycles and environmental exposure.

The 14-inch overall length (OAL) and compact oval profile offer versatile fitment options for custom exhaust fabrication. Featuring a 2.5-inch center inlet and a 2.5-inch center outlet, this muffler is designed to facilitate efficient exhaust flow while refining the engine note. The exterior features a high-mirror polish, making it an ideal choice for show-quality builds where exhaust components are visible.

• Material: T304 Stainless Steel (SS304)
• Inlet Diameter: 2.5" (Center)
• Outlet Diameter: 2.5" (Center)
• Overall Length (OAL): 14"
• Body Shape: Oval
• Finish: Polished
• Manufacturer Part Number: 616-06313-2100

Refine your exhaust note and eliminate unwanted rasp with the Stainless Bros 3-inch Inlet/Outlet Bullet Resonator. Designed for fabricators and enthusiasts building custom high-flow exhaust systems, this resonator uses a straight-through perforated core to reduce drone without creating restrictive backpressure. The compact bullet profile allows for installation in tight chassis tunnels where traditional mufflers may not fit.

• 3-inch inlet and outlet diameters for high-velocity exhaust flow
• 4-inch body diameter with an 18-inch overall length for effective sound dampening
• Full stainless steel construction for maximum corrosion resistance and durability
• Engineered to reduce high-frequency rasp and cabin drone
• Manufacturer Part Number: 615-07646-0111

The Stainless Bros lightweight muffler is engineered for high-performance custom exhaust systems where weight reduction and maximum flow are priorities. Featuring a 3.0-inch diameter and a compact 12.0-inch overall length (OAL), this muffler is designed for tight packaging in race or street-performance applications.

Constructed from stainless steel with a mirror-polished finish, it offers superior corrosion resistance and a clean, professional aesthetic for any custom build. The high-flow design minimizes backpressure, allowing for improved exhaust scavenging and engine efficiency.

• Manufacturer Part Number: 615-07613-1000
• Diameter: 3.0in
• Overall Length (OAL): 12.0in
• Finish: Polished
• Material: Stainless Steel
• Design: Lightweight Straight-Through