How to muffle sound in a V6 Skyline, after catalytic converters removed?


Asked by Jun 21, 2015 at 09:23 PM about the Nissan Skyline

Question type: Car Customization

I have a 2.5 L V6 2004 Skyline and long time ago I removed the catalytic converters,
replaced straight pipe and added a big bore. It's way too loud for the neighborhood im
moving too... how can i fix the problem?

2 Answers


I am aware that I can added mufflers and silencers but I want an affordable way than replacing the cats again with new ones... just want to get some ideas thats worked for others ?


Have you checked out the complete line of Flowmasters, or even Gibson, you can get some that will quiet it down a lot.

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