View Poll Results: Does an obnoxioius exhaust belong on the G8?
Yes - lets hear those pipes!
205
57.42%
No - keep the tone mellow.
152
42.58%
Voters: 357. You may not vote on this poll
Does an Obnoxious Exhaust Belong on the G8?
#101
TECH Enthusiast
Join Date: Jul 2007
Location: Toledo, Ohio
Posts: 596
Likes: 0
Received 0 Likes
on
0 Posts
The G8 deserves, or does not deserve a loud *** exhaust, given what it is used for.
If you are a corporate officer at a decent sized company, and often drive clients and potential customers around, then no.
If you want a fun to drive around, sports sedan, maybe as a daily driver, or something the family drives around for outings, theres no problem I see.
My Uncle recently bought a Charger R/T (over a G8 GT, despite my best efforts), and is not doing anything to it, mods or such, because it is a car that he does drive clients, and other people from his buisness around.
If GM is listening, the Charger's selling points was more comfortble, navigation, and blue tooth, he said.
If you are a corporate officer at a decent sized company, and often drive clients and potential customers around, then no.
If you want a fun to drive around, sports sedan, maybe as a daily driver, or something the family drives around for outings, theres no problem I see.
My Uncle recently bought a Charger R/T (over a G8 GT, despite my best efforts), and is not doing anything to it, mods or such, because it is a car that he does drive clients, and other people from his buisness around.
If GM is listening, the Charger's selling points was more comfortble, navigation, and blue tooth, he said.
#103
TECH Regular
iTrader: (1)
Join Date: Jun 2005
Location: Alvin Tx
Posts: 423
Likes: 0
Received 0 Likes
on
0 Posts
Some of you may laugh, but I like the sound of 2-chamber flowmasters on G8s.
http://www.youtube.com/watch?v=-z5yDjcXjeI
http://www.youtube.com/watch?v=-z5yDjcXjeI
#106
I beg to differ!! If I had a CTS-V mine would sound just like this one.
http://www.youtube.com/watch?v=LrZJBMT8Sq4
http://www.youtube.com/watch?v=LrZJBMT8Sq4
#107
Staging Lane
iTrader: (7)
Join Date: Apr 2006
Location: Katy, Texas
Posts: 69
Likes: 0
Received 0 Likes
on
0 Posts
I voted yes because I played with one a coupe weeks ago and every time he took off it sounded like a vaccum cleaner. It sounded terrible. I don't if that was the stock sound but it looked pretty stock to me. I thought it was going to have a more throaty, mean sounding exhaust, especially sinces it's a pontiac.
#108
Launching!
iTrader: (4)
Some of you may laugh, but I like the sound of 2-chamber flowmasters on G8s.
http://www.youtube.com/watch?v=-z5yDjcXjeI
http://www.youtube.com/watch?v=-z5yDjcXjeI
#109
i say put a corsa on it. they r known for being quiet. until u really get into it. so u have the best of both worlds. i love mine on my ws6, i can still sneek out!!!!!!!!lol
#110
SSU, come over and relax
iTrader: (3)
Join Date: May 2005
Location: Cary, NC
Posts: 540
Likes: 0
Received 0 Likes
on
0 Posts
I voted no...after having an LS1 with LT's and a cutout I absolutely love the quiet sound of my GT
I guess I just outgrew the whole have to have a loud car thing, especially if it is a car as nice as the G8...now when I drive my dad's 64 GTO with a 428 and all kinds of go fast goodies I want that thing to roar. With my dd, not so much.
I guess I just outgrew the whole have to have a loud car thing, especially if it is a car as nice as the G8...now when I drive my dad's 64 GTO with a 428 and all kinds of go fast goodies I want that thing to roar. With my dd, not so much.
#111
STF Veteran
Join Date: Oct 2003
Location: Greensboro, North Carolina
Posts: 3,486
Likes: 0
Received 0 Likes
on
0 Posts
I voted no...after having an LS1 with LT's and a cutout I absolutely love the quiet sound of my GT
I guess I just outgrew the whole have to have a loud car thing, especially if it is a car as nice as the G8...now when I drive my dad's 64 GTO with a 428 and all kinds of go fast goodies I want that thing to roar. With my dd, not so much.
I guess I just outgrew the whole have to have a loud car thing, especially if it is a car as nice as the G8...now when I drive my dad's 64 GTO with a 428 and all kinds of go fast goodies I want that thing to roar. With my dd, not so much.
#112
Tin Foil Hat Wearin' Fool
iTrader: (36)
Join Date: Oct 2004
Location: Austin, TX
Posts: 23,027
Likes: 0
Received 0 Likes
on
0 Posts
Nothing beats an lt catless corsa exhaust IMO, quiet when cruising, pure evil at WOT. Thats what Ive had on both my trucks including the diesel, whether it was a stock 5.3 or my 418 with big heads and a donly dick cam it sounded badass. Rasp at part throttle was the only thing that sucked.
#113
If you want the GT to be a bit louder, have a few more ponys and still be legal, then just put on the GXP system. It's basically 2.25" all the way back and has very little restriction, if they didn't change the rear mufflers from what i designed.... You might even see a 5-10 hp increase.
The GXP is on the very edge of being legal for federal requirments here in the states and has some mean crackle on the decel.... again at least when i was doing the tuning work last year. It could benefit some by going to 2.5" diam. tubes if it can be packaged....but i only had the 2.25" to work with.
I wouldn't take too much volume out of the rear mufflers if you change them, as you may end up with a splitting headache from the cabin boom you'll have....longer trips = not fun.
The GT and GXP systems are interchangable....however, i wouldn't put the GT system on the GXP in any way, shape or form.
The GXP is on the very edge of being legal for federal requirments here in the states and has some mean crackle on the decel.... again at least when i was doing the tuning work last year. It could benefit some by going to 2.5" diam. tubes if it can be packaged....but i only had the 2.25" to work with.
I wouldn't take too much volume out of the rear mufflers if you change them, as you may end up with a splitting headache from the cabin boom you'll have....longer trips = not fun.
The GT and GXP systems are interchangable....however, i wouldn't put the GT system on the GXP in any way, shape or form.
#114
TECH Veteran
Join Date: Mar 2004
Location: Sun Diego
Posts: 4,662
Likes: 0
Received 0 Likes
on
0 Posts
If you want the GT to be a bit louder, have a few more ponys and still be legal, then just put on the GXP system. It's basically 2.25" all the way back and has very little restriction, if they didn't change the rear mufflers from what i designed.... You might even see a 5-10 hp increase.
The GXP is on the very edge of being legal for federal requirments here in the states and has some mean crackle on the decel.... again at least when i was doing the tuning work last year. It could benefit some by going to 2.5" diam. tubes if it can be packaged....but i only had the 2.25" to work with.
I wouldn't take too much volume out of the rear mufflers if you change them, as you may end up with a splitting headache from the cabin boom you'll have....longer trips = not fun.
The GT and GXP systems are interchangable....however, i wouldn't put the GT system on the GXP in any way, shape or form.
The GXP is on the very edge of being legal for federal requirments here in the states and has some mean crackle on the decel.... again at least when i was doing the tuning work last year. It could benefit some by going to 2.5" diam. tubes if it can be packaged....but i only had the 2.25" to work with.
I wouldn't take too much volume out of the rear mufflers if you change them, as you may end up with a splitting headache from the cabin boom you'll have....longer trips = not fun.
The GT and GXP systems are interchangable....however, i wouldn't put the GT system on the GXP in any way, shape or form.
#115
You can also just swap the GXP mufflers in place of the GT's and get in the middle ground of the GT and GXP as far as exhaust noise....however, there will be an increase in engine noise in the GT's cabin if you swap any GXP parts on it. Some guys don't like that, but if you are going to do it, then you already know what that could mean.
Oh, the down pipes on the GT also have a flex joint that the GXP does not...for DOD noise issues.
GXP: has an H-Pipe just after the last set of cats, a mid can-resonator and rear mufflers with an S-bend flow tube..and that's it!
GT: has front can-resonator, mid can-resonator and a much longer flow path in the mufflers.
I guess i should also note as a warning that the GT intermediate pipe has no flats, where as the GXP does in certain areas...this is for the extra engine roll that the GXP produces by not having the flex couplings in the down pipes....so making this swap is at your own risk of damage or fire hazards from the possibility of the pipes contacting the underbody.
That's about it, i can't give out any numbers or test data i have, sorry.
FWIW, i also did the exhaust system on the colorado/canyon V8 trucks....also very low restriction muffler. If you hear any of those, let me know what you think.
#118
http://videos.streetfire.net/video/N...tup_634506.htm
description of the setup on the top right of the SF page.
description of the setup on the top right of the SF page.
#119
I still like the "sleeper" thing this car has going for it. You put an extremely loud exhaust on here and it may give that away. A better flowing exhaust without any more loudness than stock would be ideal. You can always put in a cutout too.
#120
FormerVendor
iTrader: (1)
The factory GXP catback sounds pretty good even with stock manifolds and cats, but would sound even better with a cam and longtube headers in front of it.
If it was my daily driver, I wouldn't want it obnoxious.
This GT sounds pretty good too
Cammed G8 GT
-Rick
If it was my daily driver, I wouldn't want it obnoxious.
This GT sounds pretty good too
Cammed G8 GT
-Rick