Re: Exhaust System Upgrade Worth It?
Again, after some research I think I have a little insight on my own deboggle. Due to the relatively low exhaust output of the 2.4L engine, increasing the exhaust tube diameter by 1/4" will have little if any effect performance wise, and anything larger that 2 1/4 will most likely decrease HP unless of course a turbo application is installed. As far as the stock muffler, it is suprisingly fairly high in its flow rate and is not very restrictive, allowing for proper back pressure. (too high back pressure kills horsepower, too low back pressure kills low end) So it seems there isnt much "play" with the exhaust system and it would be more worth while to focus on input rather than output, atleast until exhaust volume increases dramatically. Let me know if you have anything else I might be missing!!
P.S. Im told that the resonant frequency with 2 1/4 on a 2.4 sounds horrible