I've looked and haven't found an answer to my question so maybe someone on here can help. I have an 07 2.5l Jetta and am wondering what would be a better decision buying cat back system or just replacing the factory muffler with a performance muffler?
depends on what your looking to gain out of it...you might get a little bit more HP gain out of the full system
2011 - CC Lux Limited - Black Magic Pearl..stock..and staying that way...UMADLOL
...stickers add 10hp..badges add 13hp