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Old May 5, 2014 | 06:29 PM
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I have recently bought a new to me 2007 C6 base. I am having a lot of fun with the car while trying to learn how to drive it. Best car I have ever owned. I would like to have a better sound and am thinking about the Borla s type. My question is what does the x pipe get you that the axle back doesn't?

Is there increased hp, a better sound or both? Thanks.

I have tried a search but I can't find anything that tells me why I should replace the h pipe with an aftermarket x pipe.
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Old May 5, 2014 | 08:24 PM
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x-pipe is usually added along with a set of long tube headers for an increase in hp/tq and sound. an axle back is for sound.
hth
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Old May 5, 2014 | 09:31 PM
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Originally Posted by tennblkc6
x-pipe is usually added along with a set of long tube headers for an increase in hp/tq and sound. an axle back is for sound.
hth
Yup. Most good x-pipes will require the use of long tubes.
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Old May 5, 2014 | 09:41 PM
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B&B makes great quality x-pipes that bolt directly to your factory exhaust system.
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Old May 5, 2014 | 10:03 PM
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I guess I wasn't very clear. I will not be getting long tube headers. I see that most of the aftermarket exhaust systems come as catback or axel back. The Borla s-type come as axle back or you can also get them with an xpipe. Is there an advantage of getting the xpipe also or it just a waste of $350.
Does the xpipe with the axle back add more power than the axle back with just the stock hpipe?
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Old May 5, 2014 | 10:28 PM
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From what I understand some of the axel backs (specifically corsa sports) which I have tend to "burble" or "pop" on deceleration because of the increased flow after the X pipe. Adding an X pipe will better the flow and prevent this however won't add much more HP. IMO I like the burble and pop so would rather save the $400+ dollars. Just my 2 pennies ;-)
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Old May 5, 2014 | 11:02 PM
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Here is a sound comparison of my 2005 corvette. Factory h-pipe vs B&B resonated x-pipe. Plus B&B Bullets Best sounding axle back but prepare yourself for the interstate droonnnneeee.

h-pipe, sounds more like a muscle car
x-pipe, sounds more like a tuned race car

hp, in seat, maybe a slight increase. On paper, I'm sure its a increase.

hope this helps

Last edited by Brad's LS3 Vette; May 5, 2014 at 11:04 PM.
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Old May 6, 2014 | 12:52 AM
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Glad to see I'm not the only one who changed the xpipe like that lol. I have a 2010 gs with the npp exhaust. I added the borla xpipe and didn't notice much change in the exhaust note but did notice the hp/tq change. Overall happy with the change. I imagine it would make a bigger difference with the factory system though.
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Old May 6, 2014 | 10:49 AM
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Changing mid pipes will not make any noticable performance difference, why waste your money?
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Old May 9, 2014 | 07:22 PM
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I think the new X pipe sounded better.
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Old May 9, 2014 | 10:30 PM
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Originally Posted by haljensen
Changing mid pipes will not make any noticable performance difference, why waste your money?
Most of us know that to be true but for some it's the "placebo effect".
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