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| Newbie Zone If you are just getting started, new to the 3800 modding scene, or just not sure where to start, this is the place. |
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08-15-2008, 04:39 PM
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3800 Newbie
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Bernard Charles
Pontiac Firebird 1997
Location: Hazel Crest, IL
Join Date: Aug 2008
Posts: 2
Forum Experience
97blackbird holds the following arcade championships:
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New guy from illinois
hey everybody, im new to posting threads but i read comments on here all the time trying to improve my ride. I live about 30 mins from chicago. I drive a 97 firebird that i rebuilt the engine, deleted the cat and put on a magnaflow exhaust. I now regret doin it cuz it sounds bad..... would putting the cat back on make the raspiness die down?
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08-16-2008, 05:32 PM
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3800 Guru
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Thomas Martin
2000 Buick Park Avenue Ultra 3800 SC F41
Location: Rockford, IL
Join Date: Jul 2007
Posts: 647
Forum Experience
n0dih holds the following arcade championships:
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Welcome! What car is it on?
Did hollow the cat or delete? I know hollowed cats can make things sound sorta raspy. A friend of mine put some Magnaflows on his 8100 Avalanche and it sounds awesome. Not too loud, not too quiet, nearly silent inside. He has his cats still.
Was there a resonator that got deleted in addition to the muffler install?
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08-16-2008, 07:21 PM
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Proud customer of Sinister Drag Design!!
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Mike Stiemann
2002 grand prix gtp
Location: Oswego, il
Join Date: Apr 2008
Posts: 658
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12.99someday98 holds the following arcade championships:
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yeah, putting on the cat will quiet the car pretty well. It doesn't one heck of a good job working as a resonator.
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2002 gtp 4inch intake, 3.2 pulley, msd coils, msd wires, 104/103 plugs .055/.030 gap, 60# injectors, hpt, e85, 1.95 roller rockers, paceruster headers, 160 thermostat, 85mm maf, b&g lowering springs, strut tower braces front and back, nx dry kit, alky injection, tranny man trans (i freakin' love it!!) and electric water pump.
New pb.... I RAN 11's!! 
PB 12.83@102/1.83 60'  no spray. best mph 106.16
PB 11.84@115.56 1.76 60'  with spray.
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08-17-2008, 12:16 AM
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3800 Senior Member
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frank moran
1998 buick regal-1996 pontiac bonn.
Location: newport news va.
Join Date: Apr 2008
Posts: 132
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frankscr holds the following arcade championships:
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i work on exhuast for a living (midas) what i would do is put a glass pack in backwards that will quite it down some i do it all the time to the honda with the fart cans works for them
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1998 regal gs 3.3 pully and rebuilt super charger eb. spring power slot rotor, steel brake line, ported & polished intake and heads plog msd ing., manley valves, ls6 springs comp cam locks and ret. gen 3 1.9 roller rockers (stock) 180 thero. 3" dp no cat 4'cai water pump pulley with k&n filter auto 104 ,msd wires ,intense 1.0 pcm, pcm tray , knock sensor kit , gmpp sway bars and trailing arms, red top battery ,- all on new motor fresh built 18" 5 spoke painted to match the bottom haft of ther car (gray)-tited 20% window tint ,gauge pod (triple) 
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08-17-2008, 09:56 PM
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3800 Newbie
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Bernard Charles
Pontiac Firebird 1997
Location: Hazel Crest, IL
Join Date: Aug 2008
Posts: 2
Forum Experience
97blackbird holds the following arcade championships:
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i just cut out the cat & put in a straight pipe to replace it, then used the magnaflow cat back. some guy was selling it for 100 bucks on craigslist. 
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