Surprised by GXP Exhaust on 2.4L - Pontiac Solstice Forum

» Auto Insurance
» Featured Product
Wheel & Tire Center

Go Back   Pontiac Solstice Forum > Technical Solstice Discussion > Mods - Engine 2.4 l Ecotec
Register Home Forum Gallery Owner Registry Garage Search Today's Posts Mark Forums Read Auto Escrow

SolsticeForum.com is the premier Pontiac Solstice Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 06-25-2008, 03:47 PM   #1 (permalink)
Member
 
Stealthy4's Avatar
 
Join Date: May 2005
Location: Oxford, MI
Surprised by GXP Exhaust on 2.4L

From the day I bought my base model, I knew it would have to have a dual exhaust. I immediately came on the forum and learned that the GXP exhaust will pretty much bolt right up except for the rear fascia. So I ordered the fascia and began browsing the forum. Sure enough I found one relatively close. I installed it today and I think it looks way better...it really evens out the back end.

However, I was very surprised by how much different it sounds. I figured the base and GXP exhausts were pretty much the same with an extra tip welded on the GXP exhaust...however, it sounds completely different. Its definitely louder, deeper, and more raspy. It has more popping on decel and a bit more resonance as well. I dont feel like the power is any different (I didnt expect it to be though).

Overall, I like the look and sound of it! Im impressed that a relatively inexpensive mod can change the car so much!

__________________
2008 Base 2.4L Manual
Sly Exterior, Black Top, Two Tone Interior
Preferred, Premium, Convenience Packages
Monsoon, Floor Mats, A/C
GXP Dual Exhaust/Fascia

Future:
Sport Metallic Pedals, Spoiler

Last edited by Stealthy4; 06-25-2008 at 03:50 PM.
Stealthy4 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 06-25-2008, 04:07 PM   #2 (permalink)
Member
 
SlyCoupe's Avatar
 
Join Date: May 2008
Location: Metro Detroit
Nice! I bet it looks really good! Good to hear it was an easy mod as well. I personally like the solo performance SQR1 exhaust with the center dual exhausts.
__________________
Current Car: 06 Cobalt SS/SC & 2004 Acura RSX Type-S
Avatar provided by AaronWV
SlyCoupe is offline   Reply With Quote Quick reply to this message
Old 06-25-2008, 05:42 PM   #3 (permalink)
Member
 
Excelsior's Avatar
 
Join Date: Apr 2005
Location: NY
Not to hijack the thread, but I have a GXP exhaust for sale for BEST OFFER plus around $100 in shipping. Unless you can drive to Buffalo, NY and pick it up.
__________________
Previous #14 Owner - "Bumble" / Current 08 GXP - "Bruiser"
----
CNY Kappa Club Event Calendar 2011
KAPPA REGISTRY
----
* attendee: 2010 NASSM | SMMM8 *
----
Excelsior is offline   Reply With Quote Quick reply to this message
Old 06-25-2008, 08:27 PM   #4 (permalink)
Member
 
Join Date: Sep 2006
I did the same install, turbo exhaust on a 2.4. My experience was exactly the same. I did some 0-60 runs using my G-Tech and measured no difference in power. Better look and (arguably) better sound are the only results.

Excelsior: Have you gotten a shipping quote for a one-piece exhaust, or are you guessing at the $100 ? By the way, cutting the pipe for shipping is a real questionable idea. I tried to reassemble one and it is no picnic.
__________________
John
Lexington, KY
Sky VIN 00252
2.4 NA Manual
Midnight Blue
JRinKY is offline   Reply With Quote Quick reply to this message
Old 06-25-2008, 09:13 PM   #5 (permalink)
Member
 
Join Date: Jul 2006
The dual exhaust makes all the difference in the world as far as looks on the Solstice. I personally wouldn't own the car if it were not available in dual exhaust.
gmarcucio is offline   Reply With Quote Quick reply to this message
Old 06-26-2008, 04:46 AM   #6 (permalink)
Member
 
prattm's Avatar
 
Join Date: May 2008
Location: Petal, Mississippi
Send a message via Yahoo to prattm
Quote:
Originally Posted by Stealthy4 View Post
Overall, I like the look and sound of it! Im impressed that a relatively inexpensive mod can change the car so much!"[/I]

How much did the mod end up costing you?
That's exactly what I want to do.
__________________
Sly, black leather, black top, 145 NA, loaded. Seems like it has everything but On-Star.
Mods:
Stuby Antenna, 42U Splash Guards, Painted Brake Calipers and Rotors
2007 bought new 5/16/08.
Loving every minute...



My other Toy:
1935 Auburn 851 Cabriolet

Last edited by prattm; 06-26-2008 at 05:52 AM.
prattm is offline   Reply With Quote Quick reply to this message
Old 06-26-2008, 05:00 AM   #7 (permalink)
Member
 
Join Date: Jan 2007
wouldn't the gxp have a lower restriction then then the due to turbo consideration?

that would account for the added sound
perris is offline   Reply With Quote Quick reply to this message
Old 06-26-2008, 06:34 AM   #8 (permalink)
Member
 
Join Date: Sep 2006
Quote:
perris : wouldn't the gxp have a lower restriction then then the due to turbo consideration?

that would account for the added sound
Yes. The muffler is actually a bit shorter, too.
__________________
John
Lexington, KY
Sky VIN 00252
2.4 NA Manual
Midnight Blue
JRinKY is offline   Reply With Quote Quick reply to this message
Old 06-26-2008, 06:55 AM   #9 (permalink)
Member
 
Stealthy4's Avatar
 
Join Date: May 2005
Location: Oxford, MI
Quote:
Originally Posted by prattm View Post
How much did the mod end up costing you?
That's exactly what I want to do.

Well the rear fascia is normally 272 dollars if you order it through a dealership. However, gmpartsdirect.com has it for 160 but then you have to have it shipped which is another 40 bucks. If you know someone on he inside at a local dealer you may be able to get it for around 160 and not have to pay shipping.

Then the exhaust just depends. The thing is a ONE piece exhaust system. everything from the tips to muffler to the pipe leading forward. So its virtally impossible to ship. Ive heard of people giving them away but i never saw anyone actually doing it when i was looking. I finally found a local guy and he asked for 100 bucks. SO i gave him 100 and went and picked it up.

The whole mod cost me 204 (fascia) + 100 (exhaust) + 10 (gas to pick it up)= 314 dollars.

Not bad considering the after market exausts are twice that with out the fascia.
__________________
2008 Base 2.4L Manual
Sly Exterior, Black Top, Two Tone Interior
Preferred, Premium, Convenience Packages
Monsoon, Floor Mats, A/C
GXP Dual Exhaust/Fascia

Future:
Sport Metallic Pedals, Spoiler
Stealthy4 is offline   Reply With Quote Quick reply to this message
Old 06-26-2008, 07:00 AM   #10 (permalink)
Member
 
Stealthy4's Avatar
 
Join Date: May 2005
Location: Oxford, MI
Quote:
Originally Posted by perris View Post
wouldn't the gxp have a lower restriction then then the due to turbo consideration?

that would account for the added sound
You would think. The pipe diameter looks to be the same however i didnt measure it, i just eyeballed it.

I didnt measure the muffler sizes either however they look pretty close too and the hangers on the muffler line right up with where the stock hangers lined up (the rubber bushing didnt change positions)...

Anyway, there must be something different about it because it sounds like it flows much better (it just sounds smoother at idle...the stocker you could almost see each cylinder fire as the exhaust puffed)
__________________
2008 Base 2.4L Manual
Sly Exterior, Black Top, Two Tone Interior
Preferred, Premium, Convenience Packages
Monsoon, Floor Mats, A/C
GXP Dual Exhaust/Fascia

Future:
Sport Metallic Pedals, Spoiler
Stealthy4 is offline   Reply With Quote Quick reply to this message
Old 06-26-2008, 11:33 AM   #11 (permalink)
Member
 
Excelsior's Avatar
 
Join Date: Apr 2005
Location: NY
Quote:
Originally Posted by JRinKY View Post
Excelsior: Have you gotten a shipping quote for a one-piece exhaust, or are you guessing at the $100 ? By the way, cutting the pipe for shipping is a real questionable idea. I tried to reassemble one and it is no picnic.
$100 would be shipping for most locations in the US unless you are nearby the NE. And yes, they have to cut it in order to ship it.
__________________
Previous #14 Owner - "Bumble" / Current 08 GXP - "Bruiser"
----
CNY Kappa Club Event Calendar 2011
KAPPA REGISTRY
----
* attendee: 2010 NASSM | SMMM8 *
----
Excelsior is offline   Reply With Quote Quick reply to this message
Old 06-29-2008, 07:01 PM   #12 (permalink)
Member
 
Join Date: Sep 2006
Quote:
Stealthy4 : You would think. The pipe diameter looks to be the same however i didnt measure it, i just eyeballed it.

I didnt measure the muffler sizes either however they look pretty close too and the hangers on the muffler line right up with where the stock hangers lined up (the rubber bushing didnt change positions)...

Anyway, there must be something different about it because it sounds like it flows much better (it just sounds smoother at idle...the stocker you could almost see each cylinder fire as the exhaust puffed)
The turbo muffler is shorter.
__________________
John
Lexington, KY
Sky VIN 00252
2.4 NA Manual
Midnight Blue
JRinKY is offline   Reply With Quote Quick reply to this message
Old 07-06-2008, 02:31 AM   #13 (permalink)
Member
 
Falcon Wing's Avatar
 
Join Date: Dec 2006
Location: Colorado Springs, CO
Does the GXP exhaust bolt right up, or do you have to make additional modifications other than a dual facia??
Falcon Wing is offline   Reply With Quote Quick reply to this message
Old 07-06-2008, 05:21 AM   #14 (permalink)
Member
 
Join Date: Sep 2006
Quote:
Falcon : Wing Does the GXP exhaust bolt right up, or do you have to make additional modifications other than a dual facia??
Direct bolt-up.
__________________
John
Lexington, KY
Sky VIN 00252
2.4 NA Manual
Midnight Blue
JRinKY is offline   Reply With Quote Quick reply to this message
Old 07-12-2008, 11:20 PM   #15 (permalink)
Member
 
Fhaeton's Avatar
 
Join Date: Feb 2008
Location: Chi-Town
I have Nissan Z drivers scared to even challenge my Soltice 2.4 with the Magnaflow duels and Gxp rear facia. The sound alone makes them nervous to pass me.
__________________
My Hot Brazen Solstice
order date: 2/16/08 received: 4/17/08

Kappa Windscreen
kappa Springs
Manual Transmission
Black leather interior
Vans Vents and rear light covers
Dual Facia & MagnaFlow Catback exhaust
19" Avarus Staggered Wheels by Savini

No matter where we are we are always connected.
Fhaeton is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Pontiac Solstice Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -6. The time now is 02:35 AM.



Powered by vBulletin®. Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.