Pipe Expansion Solution: This exhaust pipe expander kit by Orion Motor Tech offers an easy way to expand your exhaust pipes, ensuring tight connections for optimal exhaust flow. It's perfect for home DIYers and professional auto shops alike Wide Expansion Range: This exhaust pipe stretcher comes with multiple collets to accommodate exhaust pipes ranging from 1-5/8" to 4-1/4" in diameter, ensuring a precise fit for various exhaust systems Effortless Operation: Before you start with the exhaust expander tool, just lubricate all the parts. Select the right collet, clamp the pipe, and expand it—it's that easy! For even faster results, use a 1/2" or 3/4" impact wrench to make your job easier Heavy Duty Construction: Made from aerospace-grade 6061 aluminum and AISI 1045 steel, this muffler expander tool ensures rugged rigidity and an extended service life Easy to Organize & Transport: This exhaust tubing expander kit comes with a blow-molded storage case to hold and organize all the parts for easy transport and storage between jobs