Ford#1Fan

Did the tip come with yours? Where did u order it from?

07cruiser

I bought the Installer Series si/do for my 07' 5.4 over a year ago and is sounded good. I live in Michigan and I have had no issues with rust so far. The Installer package comes with 3" tips included. I got mine for $279. I have since gone with a custom setup a few months ago, but I enjoyed the sound and ease of install for the price.

Turboglimk4

i have mbpr and i like it alot.

powerranger262

Yep, tip came with it. I don't know the exact seller, but it was ebay.

FirstF1502008

Haha I like in the video when the person revs up the engine you can see the dog run away haha it must be a good exhaust it will keep dogs away.

Ford#1Fan

Probably am going to go with the si/so stainless steel kit like whats in the video earlier in the thread. i personal think that sounds great and is a reasonable price.

Hewgull

I have the aluminized SI/SO setup . It sounds aggressive when you get on it and is pretty quiet when you are at highway speeds. It's not whisper quiet, but it doesn't drone and isn't so loud that it will get on your nerves. With the radio on it's not very noticeable.

Ford#1Fan

Is it quiet at idle too? Or does it have an aggressive tone?

Hewgull

Not at all, It's got a nice rumble to it. It turns a lot of heads when I start it up. It comes to life and roars.

Rusty Luck

Does SI/SO have a different sound than SI/DO?