MagnaFlow 2017-2020 Honda Civic Si 1.5L Competition Series Cat-Back Performance Exhaust System 19420

The install was straightforward, and the polished stainless steel tips look incredible. It completely wakes up the Civic Si’s driving experience with that deep, aggressive tone I was hoping for.

The deep, resonant tone completely transformed how my Si sounds—it’s got that aggressive growl without being obnoxious on the highway. Throttle response feels noticeably sharper, and the build quality of the 5-inch tips is top-notch.

The cat-back fit perfectly on my 2019 Si, and the aggressive note at cold start gives me goosebumps every morning. It's loud enough to turn heads but not obnoxious on the highway, which is a hard balance to hit.