True Duals

**E.Hord** · 01-13-2009, 07:48 PM

I have an 08 silverado crew cab z71, 5,3 liter, and i was wanting to put on so true duals and straight pipe them but i dont know what kind of duals i should get. oh and i want the to exit out the side not the rear.

**04sierracrewcab** · 01-13-2009, 08:34 PM

I have flowmaster on my truck and love it!!!

**mehoff400** · 01-13-2009, 08:36 PM

i have true dual magnaflows and wish it was louder

**vncj96** · 01-13-2009, 08:40 PM

have a true dual magnaflow and love it very little drone on the highway and plenty of rumble, dumped at each side behind rear tires

**04sierracrewcab** · 01-13-2009, 09:06 PM

If you are looking for the loudest go with a single muffler If you have duals you split 4 cylinders to each muffler instead of forcing all 8 through one.
If you have a "dumped" muffler it also is louder than "pipes" out the back because it does not have the 3 or so feet to loose some of that sound.

**cascott325** · 01-13-2009, 09:35 PM

thursday i am having custom exhaust put on. i am going with 2.5" tubing, dual magnaflow high flow cats (http://gravanatuning.com/805/19/70/4...d_5.3_2WD.html) a flowmaster 2-in-2-out muffler, and stainless silverline tips angled out towards the corners of the truck at a 45 deg.
i also have shorty headers. i cannot wait to get it all done. all the parts, material, and labor come to a grand total of around $400.

**vncj96** · 01-13-2009, 10:09 PM

A "true dual" is NOT 4 cylinders a side, it has a cross over or H pipe some where so that it equalizes the sound a dual in-dual out muffler will do the same thing as ling as you have two cats and the pipes never go into one. Suburbans come this way from the factory but then it goes to a single 3" pipe. And to get an H pipe exhaust done it is usually pretty expensive even at a custom shop

**Slammed07Sierra** · 01-13-2009, 11:04 PM

well technically a "true dual straight pipe" exhaust means that the exhaust pipe comes off of both headers, then travels to a X pipe and then out the rear or sides with no muffler.

thats what it means where im from and thats what i have...hope that helps..

**04sierracrewcab** · 01-13-2009, 11:24 PM

Originally Posted by Slammed07Sierra

well technically a "true dual straight pipe" exhaust means that the exhaust pipe comes off of both headers, then travels to a X pipe and then out the rear or sides with no muffler.

thats what it means where im from and thats what i have...hope that helps..

Straight pipe down here means you have ither your muffler or cat or both removed.
Its mostly common on older trucks and diesels.