Mike W

I'm trying to decide between the MAC cat back and the Flowmaster Force II (3 chamber) cat back. I had the 3 chamber on my notch and liked it because it was not loud. Question is, is the MAC system loud as the Flowmaster 2 chambers or quiet like the 3 chamber Flowmasters?

mustangmike33

theres a few guys i know who have a mac system on their cars, but they also have the mac pro-chamber. so its pretty loud, not as loud as the flowmaster 2 chambers, but louder than the 3 chamber kit. hope that helps.

OnyxCobra

I'm pretty sure the MACs are a touch louder than the 2 chamber flows... if you're not into loud then get the Force IIs.

Mike W

Thats the info I needed so 3 chambers it is. Thanks