aFe Cat Back 2.5-3in SS304 Polished Tip 2025 Toyota 4Runner

Cat-back exhaust system for the 2025 Toyota 4-Runner — the aFe 2.5in to 3in SS-304 cat-back exhaust provides maximum strength and durability while maintaining a high-flow path and a deep, controlled tone.

This aFe system is engineered from 304 stainless steel with mandrel bends to preserve internal diameter through transitions. The design focuses on structural longevity and consistent exhaust flow, making it suitable for drivers seeking a durable performance exhaust with refined acoustics.

• 2-1/2 IN - 3 IN mandrel-bent 304 stainless steel tubing — Maintains consistent internal diameter through bends for reduced turbulence and reliable long-term corrosion resistance.
• High-flow 304 stainless steel muffler — Delivers a deep, controlled exhaust note while minimizing backpressure to preserve flow characteristics.
• 4 IN diameter 304 stainless steel polished tip — Provides a corrosion-resistant, finished appearance and resists discoloration under normal use.

Performance and reliability focus: the use of SS-304 material throughout ensures corrosion resistance and structural integrity; mandrel bending preserves flow area through radii, which supports consistent exhaust behavior and helps maintain the engineered acoustic profile.

Application notes: designed as a direct cat-back replacement for the specified 2025 Toyota 4-Runner configuration, offering a factory-compatible installation path while upgrading to a high-flow, stainless-steel construction.