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Old Nov 27, 2011 | 02:57 AM
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Hey guys i had the vette on the lift today chasing a suspension problem. I noticed my car has an H-pipe and and x-pipe. I have lg long tube headers and would like to have an x-pipe only so i can install a wideband 02 and have room for cutouts. So what x-pipes will fit my lg headers?
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Old Nov 27, 2011 | 07:02 AM
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LGs X-pipe would be best
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Old Nov 27, 2011 | 04:46 PM
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I was looking at their xpipe but it seems it's too far back and that would affect the accuracy of the wide band. Will it not?
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Old Nov 27, 2011 | 04:58 PM
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The farther back the X-pipe the greater amount of torque may be produced.

once it is installed, getting a great tune to go with it
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Old Nov 27, 2011 | 05:16 PM
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My car is already tuned I just don't like te fact that is has an hpipe and xpipe. Looks like crap to me. Im using the wide band for monitoring purposes only not for tuning but I still want an accurate reading. And with the current setup I have no room for cutouts.
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Old Nov 27, 2011 | 11:19 PM
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Originally Posted by AU N EGL
LGs X-pipe would be best
I agree. And it's 3" all the way back & that's a plus!
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Old Nov 28, 2011 | 01:14 AM
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I have th z06 titanium cat back will the fit the xpipe if it's 3 inch?
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Old Nov 28, 2011 | 07:20 AM
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Tune your car again.

The turn should be refreshed each winter.

and making that change to the exhausts system is cause for another tune.
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Old Nov 28, 2011 | 10:55 AM
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Originally Posted by Boosted_C5
I have th z06 titanium cat back will the fit the xpipe if it's 3 inch?
You never mentioned which brand/style header is on your car.
How does your existing header collector merge onto your present H/X pipe?

I know for a fact that the LG 3" X Pipe will bolt up to the GM Ti cat backs
(they reduce at that bolt up junction) & on the front, slip fit into an LG long tube header collector.
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Old Nov 28, 2011 | 07:40 PM
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My headers are lg 13/4" but not sure if they are street series or pro series. They have a 2 bolt flange that connects to the hpipe and the xpipe is farther back. Its a hack job that's why I want to fix it
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Old Nov 28, 2011 | 07:47 PM
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My car was just tuned Friday before last. And I bought it that Saturday which was the 19th. It's Procharged so I don't think its gonna change very much just removing a small restriction but I could be wrong.
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Old Nov 28, 2011 | 07:56 PM
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Trying to learn here,,,Why would an H AND a X pipe be a good idea?????


Seems like a ton of turbulence causing back pressure big time!


Just haven't seen this combo before!
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Old Nov 28, 2011 | 08:05 PM
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Exactly what I thought and it looks like **** that's why I'm gonna change it
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Old Nov 29, 2011 | 03:43 AM
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i have been searching for an xpipe for my car but all the ones i am finding have a slip fit style connection an my headers have a 2 bolt flange. I was told by the previos owner that they are LG headers but from what i see lg headers have a slip fit connection unless they are an earlier version.
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Old Nov 29, 2011 | 06:54 AM
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Originally Posted by Silverbullet00
Trying to learn here,,,Why would an H AND a X pipe be a good idea?????


Seems like a ton of turbulence causing back pressure big time!


Just haven't seen this combo before!

YUP and why when you remove the H pipe a NEW tune should be done
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Old Nov 29, 2011 | 02:22 PM
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Originally Posted by AU N EGL
YUP and why when you remove the H pipe a NEW tune should be done
will it be that far off just by removing a restriction?
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Old Nov 29, 2011 | 02:55 PM
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Originally Posted by Boosted_C5
will it be that far off just by removing a restriction?
Far enough to get the tune checked out.

any other mods you want to do, now would be the time.
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Old Nov 29, 2011 | 07:40 PM
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Yep im gonna switch to a fast 102 combo, go to a flip drive pulley system and put a smaller pulley On the blower. Currently at 13psi looking for 18-22. Shooting for 850rwhp so Im gonna buy everything and do it all at once
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