Review on MagnaFlow Exhaust Products 12586 Muffler by Charles Alvey

This muffler was used to replace a cracked stock muffler and rear resonator on an 05 4runner Sport. Since the old muffler was so bad, the new one felt great. Have experienced a lot of juddering at low speeds, especially in parking lots. as if the engine had received a lot of back pressure from a clogged exhaust. After the exchange, my 4Runner is like new! Added some sound but not noticeable in the cabin. Sounds nice when you push the gears. Combined with a Magnaflow tip exiting the rear tire to eliminate the smell of sulfur when the rear window is down. The odor is not completely removed, but only appears with strong acceleration.