G8 GXP exhaust - LS1TECH

Go Back   LS1TECH > VEHICLE SPECIFIC FORUMS > Pontiac G8 2008-09 & Chevrolet SS 2014+
Sign in using an external account
Register Forgot Password?
Search


Pontiac G8 2008-09 & Chevrolet SS 2014+ LSX based RWD 4-door sedans

G8 GXP exhaust

Reply
 
Thread Tools Search this Thread
Old 02-15-2011, 09:07 PM   #1
11 Second Club
 
old_goat's Avatar
 
Trader Rating: 0
Join Date: Oct 2006
Location: Pasadena, Texas
Posts: 140
Default G8 GXP exhaust

Here is my current exhaust. Patrick G and I agreed quickly on it, Kurt installed it.

American Racing Headers 1-7/8" x 3"
3" X-Pipe and conn. pipes with high flow cats
Magna flow 12468 in the middle
Stock GXP axelbacks and mufflers.

The reason I'm posting this is I've seen questions about the Magnaflow 12468, and also if there is a good amount of clearance with this mid muffler. Here are a couple of videos that may help some of you decide whether you like it or not.

The good thing about this exhaust is that it is both wife and mother in law approved.
The first shows a video of the exhaust when it was on the rack. You can see what a quality job was done during the install.

http://www.youtube.com/watch?v=uugYUeJCEbg

Here is a video of the car being started and revved a bit.

http://www.youtube.com/watch?v=gZzL-jLSfo0

Here is a video (sound only) of the car at wide open throttle, from inside the car.

http://www.youtube.com/watch?v=3MY6CAMIfnM
__________________
2015 Corvette Laguna Blue Coupe Z51 auto. Not taken to the drag strip yet.

2014 Dodge Charger SRT auto, Plum Crazy. Bone stock 12.48 @ 112.
old_goat is offline   Reply With Quote
Old 02-15-2011, 10:20 PM   #2
TECH Enthusiast
 
2QUIK4U's Avatar
 
Trader Rating: 7
Join Date: Oct 2006
Location: Chesterfield,Va
Posts: 707
Default

Sounds good. I had LT headers with GXP mufflers on my car before and it was really raspy. That Magnaflow midmuffler really appears to eliminate the rasp.
__________________
09 Stryker Blue G8 GT 435/405 Sold
01 T/A WS6 H/C M6 446/406 Koni/Strano
02 SS H/C/I M6 440/400, 585/592 100 shot Sold
98 Z28 M6 cam/boltons 395/377 Sold
73 Z28 Neverending project
TunedbyFrost
2QUIK4U is offline   Reply With Quote
Old 02-16-2011, 12:01 AM   #3
TECH Veteran
 
2002_Z28_Six_Speed's Avatar
 
Trader Rating: 19
Join Date: Aug 2005
Location: Wash, DC
Posts: 4,493
Default

Good video!
__________________
Current Rides:
*2004 Denali, Helwig sway bars, Timbren bump stops, HD rear springs, LS6 Valley cover, Kooks LT headers + catted connection pipes, Fast LSxTr Intake, PRC 5.3L ST2.5 heads, TSP 224R cam, Efans, all AL radiator (no plastic end caps), Hayden XL tranny cooler, 6K DDM hids, efilive + WB tuned.
* 2009 MG V7 Classic
Previous Rides:
2009 G8 GXP. 2002 Camaro.
2002_Z28_Six_Speed is offline   Reply With Quote
Old 02-16-2011, 03:48 PM   #4
TECH Regular
 
01 CamaroSS SLP's Avatar
 
Trader Rating: 0
Join Date: Sep 2010
Location: Mass
Posts: 484
Default

nice videos, sounds good
__________________
2001 SS M6 # 5802 Tuned By Slowhawk

My Thread
01 CamaroSS SLP is offline   Reply With Quote
Old 02-16-2011, 07:52 PM   #5
TECH Senior Member
 
ULTIMATEORANGESS's Avatar
 
Trader Rating: 4
Join Date: Mar 2003
Location: eatontown,nj
Posts: 10,019
Default

thats a quality system. all business sound to it.
__________________
99 hugger orange ss. a4 slp y2y
built motor,trans,rear, susp. ect.

415/391 MD.
more stuff coming soon!

QS m6 05 GTO. LPE CAI, magnaflow catback. ported 243s, ls3 cam. tune. 345/340 stock manifolds.MD. its for sale.
ULTIMATEORANGESS is offline   Reply With Quote
Old 02-20-2011, 09:40 AM   #6
TECH Enthusiast
 
Greed4Speed's Avatar
 
Trader Rating: 7
Join Date: Sep 2003
Location: Ft. Worth-ish
Posts: 597
Default

Doesn't the muffler have an internal X?

Nice set up. Its similar to what I have planned for my wife's GXP. Any interior drone when cruising down the highway?
__________________
2009 CTS-V
2009 G8 GXP
Greed4Speed is offline   Reply With Quote
Old 02-20-2011, 09:51 AM   #7
10 Second Club
 
Trader Rating: 5
Join Date: Jan 2010
Location: No VA
Posts: 455
Default

Sounds good OP!!

Quote:
Originally Posted by Greed4Speed View Post
Doesn't the muffler have an internal X?

Nice set up. Its similar to what I have planned for my wife's GXP. Any interior drone when cruising down the highway?
Yeah the Magnaflow 12468 is listed as a Tru-X muffler... so he's go two x pipes in line with each other!

I dont have any drone with 1 7/8 headers, no cats, no mid muffler, and the new Dynomax VT mufflers. Couple of guys have switched to these new mufflers and they work really well.
__________________
"I got a Chevy wit a fo'-fifty-fo' in the hood, that bitch got 125 on the dash"

DriveShaftShop
Powerhaus-Performance
Capital City G8 Club
SLOW SEDAN is offline   Reply With Quote
Old 02-20-2011, 11:08 AM   #8
11 Second Club
 
old_goat's Avatar
 
Trader Rating: 0
Join Date: Oct 2006
Location: Pasadena, Texas
Posts: 140
Default

Quote:
Originally Posted by Greed4Speed View Post
Doesn't the muffler have an internal X?

Nice set up. Its similar to what I have planned for my wife's GXP. Any interior drone when cruising down the highway?
SS answered most of your questions. No, there is no drone at all. Basically the car is too quiet until you mash the go pedal.

Like I stated, it is both wife and mother in law approved (sound wise).
__________________
2015 Corvette Laguna Blue Coupe Z51 auto. Not taken to the drag strip yet.

2014 Dodge Charger SRT auto, Plum Crazy. Bone stock 12.48 @ 112.
old_goat is offline   Reply With Quote
Old 03-06-2011, 05:25 PM   #9
Staging Lane
 
Trader Rating: 0
Join Date: Dec 2010
Location: Wichita, KS
Posts: 55
Default

Sounds great
modstang60 is offline   Reply With Quote
Old 03-06-2011, 05:25 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Pat G tuned Formula makes 615rwhp N/A Kingsize Texas Members 52 07-15-2013 12:33 PM
Going for highest horsepower G8 ebaker Pontiac G8 2008-09 & Chevrolet SS 2014+ 32 12-10-2011 09:41 PM
LMR Twin Turbo Camaro makes 1004RWHP!! Worm Boy Texas Members 33 03-06-2010 10:12 PM
My video of what 2002 Camaro SS optional SLP 345 hp Center Mount Exhaust sounds like Brangeta Special Edition Vehicles 4 09-08-2009 11:39 AM
Information on V-force Mufflers and soundclips ls1chris Generation III External Engine 7 02-01-2007 09:38 PM


Tags
12468, 3, drone, exhaust, g8, gto, gxp, magnaflow, mid, muffler, mufflers, pontiac, stock, tru, weight


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 04:32 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details