SLP resonator kit, does it really need the install kit???

[12secondv6]

I'll be honest at this point I have not gotten under my car to look but this is my question. (The bird is in the garage and we have ungodly amounts of snow here, 2 feet).
I look at our sponsors who have the SLP Loudmouth cat back available for the v6 f body
T byrne wants $69.99 for the install kit
LM Performance wants $67.95 for the install kit

LM Performance has a pic of the install kit.
I am just seeing an s shaped mandrel bent pipe, 2 metal hangers, and a rubber piece.

Now, look here:
http://www.lmperformance.com/images/parts/31039a.jpg
When I look at this it seems like the resonator is just before the rear axle. I have already upgraded the piping from the catalytic converter to the S pipe, then cat back (edlebrock actually).
To me the install kit seems like a complete waste. Couldn't you just weld it right to the S pipe (Keep in mind mine is larger (2.5 inches now)

What I am getting at is is this install kit really neccesary for one who is modified already?
I could possibly see a stock S pipe possibly being replaced with this mandrel bent piece.

I dunno, I'm looking for some feedback because saving $70 would be nice and spending it elsewhere is even better!!!

Please, loudmouth people?????
Help????

[Guardsman]

The loudmouth install kit was originally for single-cat LT1s, and it was just a piece of 3" pipe (instead of the stock 2.75"), and was fitted for the loudmouth I-pipe.
On the single-cat LT1s, the S-pipe disconnnects right at the cat, whereas on our cars, the s-pipe is part of the cat. Anyhow, the loudmouth is designed for the dual cat cars, so it only replaces the I-pipe back. Hope that helps.

[12secondv6]

Thanks for the quick response.
So, from what you are saying this install kit may not be needed on a v6 with a modified S pipe?
LT1's have this as a bolt on, not welded to the cat set up vs v6 set up where the whole thing is welded together??

[silver02]

No you do not need the install kit to install the loudmouth. All it is is a pipe that connects the exhaust to the cat.When I got mine installed slp forgot to include the pipe and i didnt know it till the day of the istall, so it went on w/o it

[Predator Bird]

i think the install kit is a complete waste. just get the 3'' mandrel bent U pipe from summit and make your own s-pipe.

[mw02]

You should just by a bullet muffler from Dynomax or Sweet Thunder, weld it into your I-pipe and then have a custom pipe made for tail pipes.

Goto ls1.com and search for "dynomouth"