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Put dual cut-outs on the Lac.

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Old 03-23-2009, 07:32 PM
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Default Put dual cut-outs on the Lac.

So i had an hour to kill before class today and once again boredom got the better of me. Made some cut outs out of some pipe i had laying around and welded them on right before the muffler.
JESUS CHRIST! This ****** is loud as *****. Sounds like a big *** 4x4 red neck truck now. It's awesome. I'll try to snap some pics and video in the next few days.
Old 03-23-2009, 07:51 PM
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Sounds good. But if you want redneck loud completely remove the muffler. I was surprised how much louder my truck is with no catback compared to a cutout in the catback.
Old 03-23-2009, 07:56 PM
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lol....love the screename
Old 03-23-2009, 08:00 PM
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Originally Posted by GMCtrk
Sounds good. But if you want redneck loud completely remove the muffler. I was surprised how much louder my truck is with no catback compared to a cutout in the catback.
not really going for the noise, just wanted to bypass muffler when i go to the trach to see if it's worth swapping out or leaving.
Old 03-23-2009, 08:02 PM
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it's definitely worth it imo. I notice power gains, which is why i just took the whole damn catback off lol. No matter how free flowing your catback pipe/muffler is, the longer pipe adds resistance by virtue of the added length. I think bluecajun said he got .3 in the 1/4 by removing the stock catback. Granted, he was making more power, but it's still significant.
Old 03-24-2009, 06:36 PM
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As promised!



http://videos.streetfire.net/video/E...dle_642837.htm
http://videos.streetfire.net/video/E...dle_642834.htm

Last edited by SUX2BU; 03-24-2009 at 06:43 PM.
Old 03-24-2009, 07:30 PM
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sweet!
Old 03-24-2009, 07:37 PM
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Stock manifolds and catted Y? I had dual 3" cutouts right at the collectors of my pacesetters... I know it helped me out a ton in the upper range
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