flowmaster muffler on the 3.7

Hummer Forums Hummer Classifieds Photo Gallery Member List Calendars Search Forum FAQ Contact HF Sponsors
Hummer Lineup Hummer News Hummer Recalls TSBs Timeslips Register Login

flowmaster muffler on the 3.7

Printable Version

Hummer Forum >> Hummer Lineup >> Hummer H3 >> flowmaster muffler on the 3.7

Page: [1] 2 next > >>

Message

<< Older Topic Newer Topic >>

flowmaster muffler on the 3.7 - 9/6/2008 6:02:24 PM

hotrodthom

Posts: 43
Joined: 3/11/2007
Status: offline

has anybody put a flowmaster muffler on the 3.7 motor. i have the magnaflow cat back right now and im not impressed with the sound. it looks good, but thats it. i want a rumble. thinking of maybe a 50series flow in place of the resonator and have dual outlets out the back. how do you think that might sound? thanks in advance, tom

Post #: 1

RE: flowmaster muffler on the 3.7 - 9/6/2008 10:09:09 PM

hotrod

Posts: 58
Joined: 8/16/2008
Status: offline

I''ve been thinking of using a camero dual outlet muffler in place of the stocker. Then add some nice SS tips

(in reply to hotrodthom)

Post #: 2

RE: flowmaster muffler on the 3.7 - 9/7/2008 7:12:29 AM

Doc Olds

Posts: 3804
Joined: 7/11/2007
From: Boat Town USA (Michigan 48045)
Status: offline

You will not get a rumble out of an inline motor, maybe a whuuuuurrrrrr.

V8s thump, V6s growl, inlines .... buzz

(in reply to hotrod)

Post #: 3

RE: flowmaster muffler on the 3.7 - 9/7/2008 8:40:15 AM

hotrodthom

Posts: 43
Joined: 3/11/2007
Status: offline

yeah, i was afraid that may be the case. dont need to spend big bucks to be disappointed. how does the gibson cat back sound compared to the maganaflow? i was told a little louder but never heard one.

(in reply to Doc Olds)

Post #: 4

RE: flowmaster muffler on the 3.7 - 9/7/2008 12:37:30 PM

Doc Olds

Posts: 3804
Joined: 7/11/2007
From: Boat Town USA (Michigan 48045)
Status: offline

I am not sure. One of these days somebody has to do a side by side comparison of a few brands and make some quality sound clips.

I enjoy my MagnaFlows, but your observation is well taken.

(in reply to hotrodthom)

Post #: 5

RE: flowmaster muffler on the 3.7 - 9/7/2008 5:26:46 PM

hotrod

Posts: 58
Joined: 8/16/2008
Status: offline

Hey what about deleting the muffler, and putting on dual tips. I did this on a 4 banger and it sounded damn good.

(in reply to Doc Olds)

Post #: 6

RE: flowmaster muffler on the 3.7 - 9/7/2008 6:52:22 PM

hotrodthom

Posts: 43
Joined: 3/11/2007
Status: offline

interesting idea. i wish i knew someone at a muffler shop. i can think of a few mufller/no muffler configurations i''d like to try!

(in reply to hotrod)

Post #: 7

RE: flowmaster muffler on the 3.7 - 10/8/2008 6:55:20 PM

hotrod

Posts: 58
Joined: 8/16/2008
Status: offline

Ok I cut my muf off and built a dual exhaust. Painted the pipes black with ss tips. Looks damn godd and the sound is slightly louder than stock. Sounds pretty good at idle and even better when you get on it.I took a pi of the tailpipe system off the truck. Don''t know how to post a pic. any help on that?

(in reply to hotrodthom)

Post #: 8

RE: flowmaster muffler on the 3.7 - 10/9/2008 1:02:46 PM

silicone boy

Posts: 24
Joined: 11/7/2007
Status: offline

I''ve never been a fan of ricer mods. You know, intake and exhaust. You spend a fortune for virtually no performance gain that can be measured at the rear wheel. Plus it''s louder. What you need is an engine transplant!

(in reply to hotrod)

Post #: 9

RE: flowmaster muffler on the 3.7 - 10/9/2008 1:17:25 PM

veves

Posts: 105
Joined: 5/17/2008
Status: offline

cut the rear cat off it will get alittle deeper with your magnaflow CB

(in reply to silicone boy)

Post #: 10

RE: flowmaster muffler on the 3.7 - 10/9/2008 2:55:15 PM

hotrod

Posts: 58
Joined: 8/16/2008
Status: offline

The dual tips I put on can easily be removed and the stock muffler reinstalled for warrenty work. As far as the "ricer mods", changing or modifying your intake/exhaust is way older than the ricer movement. Since it doesn''t add much in the way of performance or sound, why spend the $500-600 to buy the aftermarket exhuast. All you really get is a little deaper exhaust note and a few ponies. I''m sure what i did gives me a few more HP and the deaper tone with out the high cost. With the tips and pipe it cost around $55 and my time to fab it up and weld. And it is a true working dual outlet.

(in reply to veves)

Post #: 11

RE: flowmaster muffler on the 3.7 - 10/9/2008 4:22:44 PM

chimazo

Posts: 10
Joined: 8/27/2008
Status: offline

Is the stock exhaust system SS or mild steel?

_____________________________

''''08 Hummer H3
''''98 Viper RT/10
''''96 Caprice 9C1 (police pkg)
''''02 PT Cruiser
''02 Z06 (562rwhp) - sold
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

(in reply to hotrod)

Post #: 12

RE: flowmaster muffler on the 3.7 - 10/9/2008 7:28:50 PM

hotrod

Posts: 58
Joined: 8/16/2008
Status: offline

Mild. I used generic parts store pipes with ss tips and just used high temp black paint on the rest.

(in reply to chimazo)

Post #: 13

RE: flowmaster muffler on the 3.7 - 10/9/2008 9:01:59 PM

c3 rolling

Posts: 30
Joined: 9/11/2008
Status: offline

pics baby

(in reply to hotrod)

Post #: 14

RE: flowmaster muffler on the 3.7 - 10/10/2008 3:10:31 PM

chimazo

Posts: 10
Joined: 8/27/2008
Status: offline

Yeah, Hotrod, post some pics. Load your pics onto www.photobucket.com or whomever you like, then you can upload them here.

Since the piping is mild, welding them should be easy (and it helps that I have a welder). Did you use some kind of flange since you said it could be put back to stock? Or did you just use some clamps? Pipe diameter? Thx!

_____________________________

''''08 Hummer H3
''''98 Viper RT/10
''''96 Caprice 9C1 (police pkg)
''''02 PT Cruiser
''02 Z06 (562rwhp) - sold
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

(in reply to c3 rolling)

Post #: 15