GMC Jimmy exhaust

[August]

Hello,

My truck is at the exhaust shop now to replace the stock system. I removed the converter (I do not have to deal with emissions) and i replaced the stock muffler. I put a magnaflow ss muffler and a pipe where the converter was. As I cannot start the engine to hear the system, do you think I must install another muffler where the cat was?

I like the growl of a V8, but i don´t like the big fines!

Augusto

 

[Wishbone]

I have dual Magnaflows on mine with no cats and it's only a little loud at WOT. You don't need anything where the cat used to be but piping. I have true duals with 2.5 piping and 2 magnaflows and it's really not that loud. Much quieter than any Flowmaster.

 

[August]

Yes but with dual I think it´s different, you have 1 muffler per line.

With a single line and just only 1 muffler perhaps it will be not enough.

 

[Wishbone]

Dual exhaust is almost always louder than a single exhaust. I have 2 mufflers making more noise than one. Keep it like it is and if you don't like it then change it then.