MagnaFlow 2006-2009 奧迪 A4 Quattro 3.2L 加州等級 CARB 合規 直接安裝 觸媒轉換器 5461119

Bolt pattern matched perfectly with my 2006 A4 Quattro, and the mandrel-bent tubing gave me back some low-end torque I’d lost with the old clogged unit. No check engine light after 200 miles.

The mandrel-bent tubing made installation a breeze on my A4 Quattro, and the welds look clean and solid all around. Three weeks in, no check engine light, and the exhaust note actually sounds a bit more free-flowing than stock. Exactly what I needed for California compliance.

Smog test passed with zero drama, and the mandrel-bent tubing made installation a lot smoother than I expected for a direct-fit unit. Car feels like it breathes better on the highway too.