NinoAvila

Okay, so this weekend, I'm going to head into the muffler shop and get new mufflers put on. I've shopped around and looked around the forums. From what I've been told here locally and on the forums, the 2.5" piping on the '05 is just fine. The only thing worth changing are the mufflers. So far the popular three are Flowmaster, Borla and Magnaflow.

The only "performance" mufflers I've ever owned are "Series 40 Delta-Flow" Flowmasters. They were on my '86 Bronco (351w). They were pretty loud, I'd say an 7 out of 10.

I'd like to know a few things before I buy my stuff this weekend:

1. What are the idle noise level and open throttle noise level of each type of muffler?
2. Which gives you the best performance and why?
3. Are there alternatives that I could ask for and get locally?
Thanks ahead of time!

-Nino

Daniel60

Dude Flowmaster said they wouldn't be out until the 10th of this month. As for who is best I have no idea. This sportscar this is all new to me. But I'm going to wait for the flowmaster they have a pretty good name.

757GT

No mufflers have added any power to the 05. I have seen numerous dyno runs in mags with before and after aftermarket mufflers. Because the piping is already mandrel bent the mufflers are dynoing 0 more hp and torque. The only exhaust that gives you any power on the 05 is SLP. Now they have two choices, the power flow which has mufflers and the loud mouth which uses the shot gun resinators. I am going with the power flow. The added power is only 3hp and 3 tq. but I wanted something I could hear.

NinoAvila

Thanks, very interesting. Sounds like I should be going for the one that sounds the best since none give you any ponies or torque.

So now, the question remains, what do they sound like and how loud are they?

-N

757GT

The Loudmouth is the loudest. My favorites so far are the flows, magnaflow, borla, and the SLP. I just checked out your website your car looks good. I have a black one.