Spent all afternoon installing the MBRP 409 Stainless exhaust on my new 05 Crew Long bed GMC. 1st recommendation for someone wanting to attempt this on your own as I did...find a lift:mad: Countless trips under and out from under the truck get very old very quick. 2nd recommendation is find a helper! I did it by myself on the driveway and it is no fun by yourself. 3rd is read the directions. I know this goes against manlyhood, but really, it works. I had to cut the factory system in half, just in front of the muffler, just to get it out. Seems to me I recall someone here saying you don't have to, but with a long bed sitting on the ground, there was no way that sucker was coming out all in one piece...luckily my bro-in-law was out of town and I could borrow his recip saw to slice and dice. Once out, the rest is fairly straight forward. This is where a friend would come in handy to help get everything lined up just right. Get everything set and then start tightening. Sound is very mellow compared to the LB7 I had with a Banks. You will immediatley notice that your exhaust pipe now sounds like a hair-dryer on low at idle with a very noticible hiss, but once you get on it..."honey, do you hear jets?" and then some rumble as it gets up into the revs. Fit and finish are nice, and it went together without much fuss.:ro)

I like mine as well....your right....a lift makes a world of diference!

How does a hair dryer with a very noticeable hiss sounds mellow? I am just curious. I thought a hair dryer sounds horrible. Do you still hear the drone between around 1700....2000 RPM (is that replaced with a noticeable hiss). Don't get me wrong I am NOT trying to be a smartass - just looking for the right system for me, most propably MBRP or Kennedy...
Thanks!

You don't need a lift. If you jack up the body in the rear without lifting the wheels off the ground, then lift the front you can pull the whole thing out with ease (by the way it took me an hour and a half to figure this out), I can do an R&R now in about 40 minutes. FWIW

Mahalkita, I know your not trying to be a smarta$$, but the hissing you hear will be on nearly any system you buy for the LLY because of the VVT turbo on these trucks. Actually sounds kind of :cool2: I haven't had it out on the hiway for an extended period of time to see if there is any drone, but will let you know when I drive it to work (all freeway) tomorrow. All in all it's a nice system. By the way, if you keep the catylitic converter on there, you will not notice it nearly as much. I would remove the kitty unless mandatory inspections are done, even then you could just put it on for the inspection and take off again for "testing purposes only):h !

bartman

Glad to hear you liked the system, I'm with you ...............who reads instructions??

MB

For others reading the thread:

Jack the right side front up so the right front tire is 4" off the ground. This will also lift the rear quite a bit if you do it on the frame rail by the passenger door. Even a FatBoy can climb under there and remove it easily.

That is what I was trying to say :) .

Installed mine today. took 1.5 hrs (on back). 1 cut on old exhaust, behind axel. can't wait until someone is in right hand lane with window down and wondering "where is the hair dryer?" and then gets a face full of soot! :ro)

I put mine on about 2 months ago. If you remove the right rear tire and take the top bolt out of the right rear shock the stock exhaust comes out in one piece very easily, and yes having someone to help makes it alot easier.

Thanks for the tip SSNIGHTMARE. Later! Frank

I usually put mine on ramps in front and jack it up in back by the hitch so the tires hang to make it easier. On this truck when I was messing with the exhaust I was too lazy to go get the jack so I just tossed some railroad ties in front of all 4 tires and drove it up on those.. That worked fine for me. It does take a little wiggling to slip it over the axle.

On a side note, the height it was at when it was on those ties seemed about right. I better look into lifts.

When I installed my Banks exhaust, we ran the passenger side (front and back) on ramps to better get at the exhaust. My brother was underneath and all I had to do was lift on the back bumper. He pulled the stock system right out. This is on an extended cab short box. Just thought it might help someone.....