Exhaust question

[Nyjd516]

Why did you combine the glass packs and the muffler? Is the muffler way to loud by itself with the secondary cats removed?

[speedfoos]

Yeah. At first I simply ran 2.25" off the stock manifolds to the muffler and out of the truck. It was loud, nasty, raspy and simply awful sounding.

I had the that 3" glasspack laying around so I added that after the muffler. That mellowed things out a bit but it was still obnoxious.

Then I added the two 2.25" glasspacks before the muffler. I am finally happy with the exhaust note. Don't get me wrong, I love a loud, aggressive exhaust system (I ride a back-firing, crack on decel Harley and love it) , but its really hard to put a dual exhaust system on a V6 and have it sound decent. I think I've got the right combo on the Frontier finally.


Here it is with just the muffler. All blatty. I thought I liked it at first. It wore on me pretty quick.

You Tube

You Tube

[Nyjd516]

So you replaced the cats with glass packs, I see and yea I just want a v8 sound on the louder side but not annoying on the highway

[speedfoos]

Ish. The glasspacks are right before the muffler which is in about the same place the stocker was.

[06blackse]

Originally Posted by speedfoos

That's like putting 2.5" exhaust on an old 3-cylinder Geo metro. Way overkill.

LOL, that brings back the memories LOL (not the exhaust but the metro, I had one in high school and I only filled it once a month thanks to the 53 city and 72 highway)

[Nyjd516]

Yea that clip sounded a little raspy, I just want a nice smooth rimble like a v8

[Hertz]

Originally Posted by Nyjd516

Yea that clip sounded a little raspy, I just want a nice smooth rimble like a v8

LOL then you're going to need to trade your truck in on something with a V8 or put one in your Frontier. You will never get that kind of sound out of that motor. That clip speedfoos posted is how these things sound. If you don't want raspy then the last thing you want to do is throw some too big for the motor 3" piping on there. That will just make it worse.

[Nyjd516]

Guess I have some Trial and error to do with different types of mufflers

[My04Front]

Before you buy any mufflers hollow out your cats and reinstall them. I have a Ford contour with a v6 stock it came with two precats from the mani then Y-piped to another cat then a resonator then a muffler. Quite and restictive. now it has three empty cats and a resonator. It sounded great and cost $0.00. My father drove it for a while and put a muffler on the back to quite it down. Plus after removing the guts gas MPG went up 2 MPG. so before you buy and you know you are going to replace it try the no cost option. My 2c.

[lane.mcpeak]

Originally Posted by speedfoos

Yeah. At first I simply ran 2.25" off the stock manifolds to the muffler and out of the truck. It was loud, nasty, raspy and simply awful sounding.

I had the that 3" glasspack laying around so I added that after the muffler. That mellowed things out a bit but it was still obnoxious.

Then I added the two 2.25" glasspacks before the muffler. I am finally happy with the exhaust note. Don't get me wrong, I love a loud, aggressive exhaust system (I ride a back-firing, crack on decel Harley and love it) , but its really hard to put a dual exhaust system on a V6 and have it sound decent. I think I've got the right combo on the Frontier finally.


Here it is with just the muffler. All blatty. I thought I liked it at first. It wore on me pretty quick.

2004 Frontier Edelbrock SDT - YouTube

Speed, do you happen to have any audio clips of it after you added the glass? I'm pretty sure my exhaust and muffler have had it, and I'm just beginning my research into exhaust systems. I actually thought the video of just the muffler sounded pretty decent until it got into the higher rpm's. Performance gains? MPG gains, losses?

Any info you wouldn't mind bestowing on me about exhaust systems for our trucks would be appreciated. I'm replacing the stock exhaust. Wanting to go with something a little higher-ended, but nothing "extreme."