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INFINITI QX4 Y-Pipes and Mid-Pipes

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Shop our extension selection of Y-pipes and mid-pipes for your vehicle–ideal for repairing corroded and leaking exhaust systems. We also offer performance-oriented products, providing moderate horsepower and torque gains and an improved exhaust tone.

What Are Y-Pipes and Mid-Pipes? What Purpose Do They Serve?

Y-pipes and mid-pipes are components of your vehicle’s exhaust system. Y-pipes refer to the exhaust section that joints both exhaust banks of a V-shaped engine, after the header. Alternatively, mid-pipes are found between the Y-pipe and tailpipe and typically feature a resonator or muffler. 

Both Y-pipes and mid-pipes serve the similar purpose of transporting exhaust gasses from the cylinder heads to the tailpipe, where they dissipate into the atmosphere. Y-pipes and mid-pipes can be constructed from various materials, including T-409 SS, T-304 SS, and aluminized steel. While all provide excellent corrosion resistance, both stainless steel varieties are ideal for use in cold climates with frequent exposure to moisture, snow, and road salt.

Y-Pipe and Mid-Pipe FAQs

Q: What’s the difference between Y and Mid pipes?

A: Y-pipes converge two exhaust banks into a single collector, hence the title “Y,” while mid pipes from the middle section of the exhaust, between the Y-pipe and tailpipe. 

Q: Do the pipes change the sound of the exhaust?

A: In some cases, yes! Some Y and mid-pipes utilize larger diameter tubing, different bends, different lengths, and include integrated resonators/mufflers–all of which affect the exhaust note.

Q: Do Y or Mid-pipes affect horsepower?

A: Yes, they can! In some cases, Y and mid-pipes utilize larger diameter tubing, different bends, different lengths, and include integrated resonators/mufflers–all of which affect performance.

Q: How are Y and Mid pipes made?

A: All exhaust pipes are constructed from heavy-duty alloy tubing, like stainless steel and aluminized steel. These pipes are cut to size, mandrel-bent, and fully welded to ensure maximum flow and a leak-proof seal.