Flowmaster15150S Univ Resonator 3X6 2.5" O/Oss 409S

I have a 2008 Charger 3.5L with a Borla split exhaust. This is a cat-back system but I installed it from the OE muffler back as the Borla muffler was too noisy for me. Prior to installing the Flowmaster resonator I had significant droning on start-up, acceleration, and at highway speeds. I was skeptical when I opened the box and found that this is a straight through design with a side chamber and disappointed because Flowmaster told me it was not a straight through design. However....... it did eliminate my droning problem and the exhaust note is now much quieter. It still puts out some noise on moderate or hard acceleration, but cruising down the road is almost completely quiet. I can now easily hear the tires and wind noise at highway speeds. I installed it just in front of the muffler. Seems to be a quality product.

Placed this resonator in line with a flowmaster hp2 behind it on my 95 impreza. Went with 2.5 inch diameter mandrel tubing from flowmaster, custom cut and built myself. I am SUPER happy with the result!!! Even with the 1.8L it sounds AWESOME!!! Naturally aspirated with a cheap UEL header, no cats this resonator and an HP2 muffler. Very happy. No annoying resonating drone inside the car but has perfect boxer rumbly tone.

Nice

Purchased this for my '02 525i and i love it. Adds a deeper tone.Most notable is that the start up sound is much better. Idle sounds a little more pronounced. WOT you get more rumble and engine sound. Did not feel performance addition at all. However a year after buying this resonator i purchased headers and i feel the flow is sufficient.

Return item as it was not compatible to my truck. Unable to use or rate was sent back.