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Switched to longtubes...power loss???

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Old May 27, 2007 | 04:34 PM
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Default Switched to longtubes...power loss???

I recently pulled out my mac mids and catted y pipe and installed pacesetter longtubes with offroad y, but now it feels like my car isnt as quick. The midrange power especially is noticeably less. The car feels sluggish pulling from about 3-5k rpm. I figure i need a tune now. Hopefully a tune will unlock the gains of the LT's...any comments????
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Old May 27, 2007 | 04:59 PM
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check plugs/wires and for any leaks. you shouldnt be down on power.
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Old May 27, 2007 | 05:32 PM
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Any codes? might just need a tune but shouldn't feel a power loss.
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Old May 27, 2007 | 08:48 PM
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check for any leaks man
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Old May 27, 2007 | 10:27 PM
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i just installed my pacesetters with ory, and damn my car pulls up the powerband. and also, noticable big time with throttle response. car feels alot stronger.
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Old Jun 2, 2007 | 10:03 PM
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Default mac mids?

still got the mac mids? wanna sell?
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Old Jun 2, 2007 | 11:14 PM
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I cracked four spark plugs doing my LT's and thought the same thing that I had lost power. Check those out, did you use the gaskets that came with the LT's.. thats usually a no-no just reuse the old stock ones.
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Old Jun 3, 2007 | 11:18 AM
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Originally Posted by sscamaro1384
still got the mac mids? wanna sell?
Mids are sold.
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Old Jun 3, 2007 | 11:20 AM
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Originally Posted by Fibbado
I cracked four spark plugs doing my LT's and thought the same thing that I had lost power. Check those out, did you use the gaskets that came with the LT's.. thats usually a no-no just reuse the old stock ones.
I used the stock gaskets, but i replaced my spark plugs yesterday and the power has returned - problem solved!!!
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Old Jun 3, 2007 | 09:44 PM
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Is it easy to crack a plug when doing this, cause I seem to be having the same problem.
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Old Jun 3, 2007 | 10:09 PM
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i cracked a plug on mine too...ran like ***
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Old Jun 3, 2007 | 10:14 PM
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crazy i just switched from mids to LT's i feal the power although it is small but theres def a gain.
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Old Jun 4, 2007 | 10:36 AM
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Law of Lontubes:

If you feel like you didn't gain anything or lost power doing LT's, replace your spark plugs, make sure you used good old OEM gaskets, make sure your 02's are healthy. Beyond that problems would have to lie somewhere else.
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Old Jun 4, 2007 | 07:01 PM
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Originally Posted by Fibbado
Law of Lontubes:

If you feel like you didn't gain anything or lost power doing LT's, replace your spark plugs, make sure you used good old OEM gaskets, make sure your 02's are healthy. Beyond that problems would have to lie somewhere else.
So deleting AIR and EGR should not effect performance if it hasn't been tuned out yet?
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Old Jun 5, 2007 | 08:24 AM
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AIR does not affect performance at all. EGR only
applies at mid-high vacuum and will be off at high
throttle; its only drawback is the pecker in the
inlet. That can just be cut back flush.

Of course both add some ugly plumbing and header
fittings to break off at the weld.
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Old Jul 21, 2007 | 06:16 PM
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Very nice!! I can't even remember who i sold them to lol...
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Old Jul 23, 2007 | 07:47 AM
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that same thing hapind to my and i put slp cats on it and gand bak an *** load!
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