[ndinh]

Originally Posted by AmooManiak

Has anyone had the Megan mufflers for longer than a year? Wondering what they sound like long term.

Also, any thoughts on fitting the 4" quads with this diffuser? Should it fit?

https://europeanautosource.com/3d-de...-5-series.html

Don't think 4" tips will fit on that diffuser. You'd have to go OE or something made for a M5. I tried M5 mufflers with a standard dual opening diffuser and it touched the diffuser sides. I ended up selling the setup and going with 3.5" tips.