Magnaflow question (installation)
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RE: Magnaflow question (installation) - 2/25/2008 8:02:17 AM
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Doc Olds
Posts: 3398
Joined: 7/11/2007
From: Boat Town USA (Michigan 48045)
Status: offline
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Yes you would. The hardest part is getting the old stock system off, if you want to save it as one piece, jack the rear of the 3 up a bit to give you more over the rear axel clearance, unbolt it and slide the rubber mounts off the hangers, then pull it all out the rear watching not to crunch or snage a brake line. The new system gos in easy.
Tip: before you start removal, get some spray silicone lubricant, spray each of the rubber mounts at the exhaust hangers, use a big screw driver, cotter key puller works better, and pull/push the rubber mounts off the hangers. Spray them again so the new hangers will slide right thru the rubber mounts easy.
I did mine in less than 45 min.s, but I cut the stock trash in front of the rear axel to get it out easier in two pieces. Two of you should be able to do it in an hour or so no problem.
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RE: Magnaflow question (installation) - 2/25/2008 5:23:29 PM
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HUMMER DRIVER
Posts: 447
Joined: 3/12/2007
Status: offline
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I did mine myself, I removed the stock exhaust in one piece just in case I wanted to put it back stock later on.
You do indeed need to jack the rear to get the one piece unit off. I jacked the right rear with my Hummer jack. I had to twist as I pulled the stock exhaust out, it goes between the rear axle and the bottom of the chassis. There is a brake line running on top of the axle. I put a few rags on top of it after I twisted it slightly so it was about 2'oclock instead of straight up and I put the muffler on a creeper so it would roll out as I pushed it. Seems like I put a cardboard box on the creeper then dropped the weight of the muffler on it as I slid it rearward. If you have some help the helper could hold it while you back it out.
After you get the stock unit out, it's really easy to install the new Magnaflow. I left all the clamps loose until I got it positioned like I wanted then started tightening up the clamps going from the front to the back. After you crank it I KNOW you'll get out and listen to it idling, don't be surprised if you smell something burning. It the protective coatings on the interior of the exhaust and it goes away pretty quickly and the pipe will mellow a little more over time, mine seems to be a little deeper toned now than when it was brand new.
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2007 H3 Black/Chrome Package , SS Nerf Bars, Roof Rack, MagnaFlow, Towing Kit, HUMMER PinStriping. K&N , PCM , SS Brushguard, Backup Camera, 34" Trxus M/T & ProComp Rims.
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RE: Magnaflow question (installation) - 2/25/2008 10:45:45 PM
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RyanCodyH3
Posts: 255
Joined: 2/3/2008
From: Texas
Status: offline
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Awesome... Time to start savin for the Magnaflow
Thanks Doc and HD :D
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06 H3
K&N FIPK2 CAI, 10000k HID Kit, Black Grille Guard, 20% Tints, OEM Rubber floor matts, Blue Interior Neon blue dome LEDs. Blue back up lights, black smoked turn signals
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