MagnaFlow 1986-1991 シボレー コルベット 5.7L ストリートシリーズ キャットバック パフォーマンスエキゾーストシステム 15658

The deep, aggressive rumble at startup is exactly what this C4 needed—sounds like a proper Vette now. I notice a solid power bump in the mid-range too, and the stainless tips look great under the bumper.

Installed it last weekend and the whole character of the C4 changed—that signature MagnaFlow resonance is unmistakable now. The 5.7L pulls noticeably harder past 3k rpm and the drone at highway speed is actually quieter than I expected.

That deep, resonant tone on startup is exactly what I wanted, but it's also surprisingly civilized on the highway. The cat-back install was straightforward, and the car feels like it finally sounds as fast as it looks.