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-   -   true duals vs x or h pipe (https://www.truckforums.com/forum/chevy-silverado-gmc-sierra-forum-11/true-duals-vs-x-h-pipe-17505/)

mcboo_Sierra Sep 12, 2011 10:35 PM

true duals vs x or h pipe
 
hey guys im gonna change up my exhaust again and i want to go true duals ive herd some of the muscle cars at work with true duals no h or x sound great. just not sure what to do, im mostly looking for the best sound, so i was wonder which one sound better true, x or h.

im gonna run stock cats with no-muffler on a 4.8

MrDragon Sep 13, 2011 01:51 AM

An x pipe runs more efficiently than an h for the simple fact that you don't want sharp bends in the exhaust. Placement of the crossover is also important as well as the size of the pipe. Going with a high flow cat will also drastically change the exhaust tone. All of this when done right will not only sound good but let the engine breathe more.

Mr_Shamrock Sep 13, 2011 07:42 AM

Your gonna kill your back pressure which = less torque. Your truck will be louder but feel slower. I just swapped mufflers on my 92 yesterday. The PO eliminated the cat and had a 2 chamber flowmaster. It was loud as hell and the truck would downshift going up the smallest incline. I stuck a magnaflow muffler in place of the flowmaster and got some back pressure back and now the truck feels and (IMO) sounds much better. I am am still considering a high flow cat to tone it down a little more and to get rid of that rich smell, but the truck is much more enjoyable to drive now. Remember loud does not = fast!

RUFFNECK4LYFE Sep 14, 2011 04:44 AM

Your gonna lose power. If you just want sound then a simple catback mandrel bet piping with a magnaflow muffler would be a better option. But that 4.8 doesn't put out enough exhaust to need true dual. Im running single 3" on my 5.3 and its cammed, but I think its too much flow.

mcboo_Sierra Sep 14, 2011 08:02 PM

i have been runnin straight piped dual exhaust, just y-piped after i cut the muffler off, with 2.5" pipe and 3.5" tips. im putting a 3in body lift so i had to change up the exhaust. ive been runnin straight piped for 3 yrs now it runs fine and sounds great.


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