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QUOTE (BeefyT @ Oct 7, 2008 - 1:20 PM)

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QUOTE (bseaman_5 @ Oct 5, 2008 - 11:01 AM)

>I ran just the header for something like a month before I got my exhaust done, and there is a sound difference, you MAY feel a little more umph on acceleration but more than likely no.. If you have a CAI or SR than it will just sound even better, CAI was my first mod and when I fired it up the first time it was like a whole new world opened up for me, when I installed the header and fired it up I think I jumped to another world. Adding an exhaust will only make things better, just don't buy a muffler that is too loud. I have a borla xr1 muffler (I think, i don't remember) and it's quite loud but there are many mufflers you can get that aren't that loud but sound good.
so there is no sound difference if i have a sri and stock exaust?
From what I've read, if you swap out the original 5sfe (not sure what engine you've got) with a tubular design, you should get improvements all the way around, along with better sound. If you can, get a 4-2-1 header, it'll just make you set up run that much smoother.
-TC