I have a 1999 GMC Sierra truck with a 5.3 Liter V8 and I am looking to put dual

[eightball_122]

exhaust. Any recommendations? I want something that will produce maximum horsepower but not too loud

 

[dxncld]

you cant go wrong with a set of Flow masters you will get at least an extra 15 horses and you will love the deep mellow sound

 

[segelke germany]

You cant go wrong with a Flow master but there are plenty of knock off flows out there. Flow master lost a patent for the 40 series and most exhaust shops have the solution. Good knock off Flow, dual tails, with tips are about $350.00 installed.

 

[mick_289]

from a chebbie..............take what ya got and live wit it.

 

[segelke germany]

You cant go wrong with a Flow master but there are plenty of knock off flows out there. Flow master lost a patent for the 40 series and most exhaust shops have the solution. Good knock off Flow, dual tails, with tips are about $350.00 installed.