specialagentPK
03-16-2005, 12:48 PM
on my 2001 i am going to pull the muffler off and straight pipe it but i am wondering how loud it will really be? motre or less than a 4 inch?
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WAskier 03-16-2005, 02:00 PM The LB7's supposedly sound like straight piped muscle cars when you do that. I guess they are LOUD, never heard one myself but that's what I've read on the forum. ratlover 03-16-2005, 02:49 PM Not real loud.....I guess everything is subjective. Also depends on how many HP your truck is making. The more balls the louder it is. An LB7 does kinda have a gasserish sound to it. Probably louder than a 4" exhaust. Do it IMO, if you dont like it then get a real exhaust system or have a different muffler put in its place. StraitDiesel 03-16-2005, 07:33 PM I have an 04' LB7 straight piped, it is somewhat loud... very loud if I am flooring it though. To compare sounds, I know someone with a mid 90's Dodge Cummins with a 4" exhaust with muffler on it... my truck's exhaust is definitely louder than his. Dan Frank Blum 03-16-2005, 09:17 PM They are a lot louder than my MBRP 4". Later! Frank Str8 Eight 03-16-2005, 10:14 PM Compared to the old style diesels a straight pipe duramax has an aggressive sound, but it is very tolerable. Cummin_Stroke_this_Dmax 03-16-2005, 11:36 PM It sounds good, it is a tad bit loud if you're on the 'go' peddle too hard. My buddy has his straight piped - I love the sound. J-HEFF 03-17-2005, 01:47 AM I had my 02 straight piped for a long time, and the drone at 70 mph finally drove me insane and I put a muffler on thats free flowing. I personally thought the straight pipe and stock exhaust sounded more like a howl than a growl. I like the sound of the big free flow muffler I got lots better. Four inch might help the howling sound though...just my two cents, everyone has there own preference! Straight pipe could turn some heads outside though! J-HEFF machoosh 03-17-2005, 09:06 AM The sound is real throaty http://www.dieselplace.com/forum/images/smilies/smile.gif, mine is fantastic. I always find myself driving with the passenger window half-way down in to listen to the turbo whistle when you let off. Also to hear it rap when you get on it http://www.dieselplace.com/forum/images/smilies/hihi.gif. Did mine and never looked back...http://www.dieselplace.com/forum/images/smilies/grd.gif specialagentPK 03-17-2005, 11:26 AM thank for the replys guys i was just makin sure i wasnt making a mistake and it sounds likle most of u who have done it like it so i will go ahead with it. and if i dont like it thats ok because i have a muffler shop that will weld on the stock muffler. and the only reason i straight piping the stock system is because i dont have the $$$$ to buy a 4 inch system | ||