Brand KAX Tip Size 4.5 Inch Muffler Included Muffler with 3.5 Inch Tip Pipe Diameter 2.25 Inch - FITMENT: Compatible with 03-09 Nissan 350Z; Compatible with 03-07 Infiniti G35 Coupe, Does not fit G35 Sedan model - Quality Construction: Made of High-Quality Stainless Steel with Computerized mandrel bends for Strength and Durability. TIG welded CNC machine flange for resistance against pressure and corrosion. - Enhance Performance: Proven to instantly increase 15 - 25 horsepower / low-end torque. Aggressive deep and smooth tone while ensuring smooth exhaust gas flow, increase engine output and efficiency. - Muffler & Diameter: 3. 5" Dual Rolled Edge Round Diagonal Cut Tip; Eliminates Factory Style Mufflers - Design: The larger pipes, low-restriction mufflers, and tuned resonators of a well-designed performance exhaust system can make a stunning effect on your vehicle: lower auto exhaust back pressure and a much better sound. High Quality Made of High Quality T-304 Stainless Steel. We do rigorous testing on the strength, durability, as well as longevity of the material in order to make sure when the product arrives at the consumers end that it’s ready to go without worries. Pure Performance Aggressive deep and smooth tone. Every KAX exhaust system is designed for maximum airflow and validated on our in-house dyno to ensure performance across the entire powerband. Well-Designed The larger pipes, low-restriction mufflers, and tuned resonators of a well-designed performance exhaust system can make stunned effect on your vehicle: lower auto exhaust back pressure and a much better sound. About KAX ® KAX, one of the star brands of SuncentAuto, was built in 2018 by experienced automotive experts. The dedicated team ensures that users receive advanced technology products and their overall driving experience is improved with their mindful innovations. Although the brand has been introduced a couple of years back, the team consists of experts who are into the automotive industry for more than two decades. Warranty: We accept authorized returns within 90 calendar days from the date the product was received by the buyer or original recipient unless otherwise specified at the time of purchase.