🔊 Flowmaster 42443 40 Series Muffler - Aggressive Sound, Black - 2.25 Offset IN / 2.25 Offset OUT - Enhancing Performance Review

I bought 2 of these for my '07 Mustang v6 and I love the sound. It used to be too quiet, but now it sounds great, the tone is spot on

I have them on a '98 Mustang Cobra. You sound great! Nice purring V8 at idle and very comfortable when you hold your leg. I love her

I put a couple of these on my Camaro and they sound more aggressive, the next step is CAI. This is a great product although you may need someone to bend your tubes to get them a perfect fit.

I spent a lot of time researching the entire line of Flowmaster mufflers before selecting them for my Charger RT 5.7L Hemi. They really capture the sound of the Hemi muscle car. After installation, in combination with a cold K&N air intake, there is a noticeable increase in performance and throttle response. If you have a Hemi, you can't go wrong with the original 40's.

I removed and installed all FOUR mufflers on my 2011 Dodge Challenger R/T and am 100% satisfied with the performance and sound. I have no idea what's up with people complaining about the "roar" of these cars. It's much quieter than my 2002 Mustang GT and has the same setup except for the lack of catalytic converters. Maybe a part of society is softening? I do not know. Anyway, this muffler sounds great on my car and I did the same on my 2005 Silverado with the 5.3 liter engine. It sounds great…

I bought these for the 2007 Grand Prix, didn't look closely at the pictures so didn't notice they were double offset and not inside and offset in the middle. Overall the place I drove my car to was able to get around this and make it amazing with the advice I received. Be careful, the place I took it said it was quite difficult to weld the exhaust pipe to it. But only for V6 sounds good. Was told it sounds like a V8 when I stopped by, it sounds really good with the resonator I was given (2.25"…