[derv]

Anybody got any actual before and after results gains losses best choice etc
I'm trying to compare systems to fit into an ongoing project
3 inch with mufflers
3 inch straight
4 inch with mufflers
4 inch without mufflers
All from turbo back

Thankyou

Thankyou

 

[9297oldram]

We really need to know about your project and what's being done and what the project is being used for to really be able to give you a helpful answer.

 

[derv]

Thanks . Well I'm thinking it's not even needed untill either towing really heavy or / and a certain power level is reached that is probably rarely used in the real world I'm just trying to confirm
Either way. If it's only noise gained I'm
Not interested.
Highway only towing daily driver VE manual stick and stock might tune the pump a little might IF needed change out the turbo from the wh1c

 

[derv]

The point is I have no system at all but will need to build one so I don't want to do it twice or anything simply for over compensating bragging rights 😉

 

[thrashingcows]

I have been running a cobbled together OEM 3" system for almost 9 years now. My truck is only slight turned up and I have had no issues with the 3" system....BUT when I do replace it I will be going with the 4" system with a flow through muffler. Straight pipe is fun for a few months then the drone just started to wear on me....couldn't be happier with the flow through muffler added to keep things a tad quieter.

So if I were you I would do the 4" with a muffler and call it done. the cost saving between the 3" vs 4" is negligible and the 4" is pretty much the go to replacement for everyone.....not a bragging rights thing. Plus the 4" system will give you room to grow down the road if you do change your mind about how much power you want. "D

 

[9297oldram]

Yea if your having to buy one then the Diamond Eye 4" with a open center muffler is nice. But it sounds like a 3" system would would be more then enough with a open center muffler.

I have the stock 3" system with a open center muffler on my Fummins and it's not holding me back.

 

[trev.92.12v]

I don't have anything on paper to back up my choice for the 4" w/ muffler, but I did my research a few months back and I found that most people found the drone of a straight pipe annoying, and a 4" will leave more than enough room for hp gains in the future.

Good luck! I'm more than happy with my exhaust setup.

 

[derv]

Ok thanks all. I think il see what's in
My parts pile on the smaller side also depends on what exhaust brake I use too.

 

[derv]

So how much and where are the best deals on these flow through mufflers and do they shut it up enough? I think I have like a stock 07 muffler here somewhere I might be able to use