Electronic exhaust cutout - Pontiac G6 Forum
 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 03-15-2013, 11:05 PM Thread Starter
Junior Member
 
Join Date: Aug 2011
Location: Georgia
Age: 28
Posts: 6
 
Electronic exhaust cutout

Hey there fellow G6 owners, I got an exhaust question and I'm sure you can tell what it is from the title, if not....well damn man. Anyways, my previous car had a muffler delete and I for one loved the sound it made (3.0 v6) however I've decided against this for the G6 after reading about losing back pressure and how critical it is for our cars. With that being said I also read that a straight pipe would result in possibly better hp in the high rpm range. With an electronic exhaust cutout you can run straight pipes with the flick of the switch. So say from a dead stop, stock exhaust for the back pressure but once you get up to speed opening the cutout for a free flowing exhaust. And of course, I'm sure it would sound Godly, my 3.0 sounded damn mean and not fart can bumblebee buzz mean. And with the bigger engine I imagine it would sound even better. And before you say it I know the GT-R exhaust is the best way to go but, damn I'm broke as hell lol I would like to mount before the resonator to get the loudest possible noise but I think the easiest place to mount would be in front of the rear wheel on the drivers side where the bend is after the resonator and extending the pipe a little to clear the underside of the car. So guys(gals), any thoughts or opinions on this idea? Btw I have a 3.9l GTP and sorry for such a long post lol
WasianGTP is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 03-16-2013, 12:46 AM
Senior Member
 
theshibbykumquat's Avatar
 
Join Date: Jan 2012
Posts: 447
 
Cars dont need backpressure to put it simply, its a common misconception but if you do the research youll find out why. As for the cutout I wouldnt bother, if the car is your daily driver and sees rain and snow you can bet that the cutout valve is gonna seize up as soon as it starts to rust. Personally if you want a louder sounding exhaust just replace the resonator with a bottle style one and the muffler with a flow through unit
theshibbykumquat is offline  
post #3 of 7 (permalink) Old 03-16-2013, 01:08 AM
OOBER SUPER MEMBER
 
CruisinG6's Avatar
 
Join Date: Jul 2009
Posts: 4,232
 
Re: Electronic exhaust cutout

Back pressure may not be important but having a cut out will also dump all your torque. The total length of the exhaust makes an impact on torque when it comes to naturally aspirated engines.

For example when I pulled my exhaust apart it separated after the cat, even though my 4cyl has 2 cats it still felt unreasonably sluggish on hills and when starting off. As soon as I got it welded back together it felt like I had so much more go power.
CruisinG6 is offline  
Sponsored Links
Advertisement
 
post #4 of 7 (permalink) Old 03-16-2013, 12:44 PM Thread Starter
Junior Member
 
Join Date: Aug 2011
Location: Georgia
Age: 28
Posts: 6
 
Well living in Georgia I'm not too worried about snow lol We do get a lot of rain. I just like the idea of having a quiet exhaust when I like and a loud obnoxious "who the **** is making that noise" exhaust on the fly. Oh well just an idea for now, I'm not really interested in performance gains for the most part, if I got any it would be nice but I literally just want the noise lol I saw a video on youtube of a G6 running straight pipes from the headers back, dear lord it was loud.
The G6 in the video is exactly the same as mine so if I could get that level of noise, it would make me a happy camper.
WasianGTP is offline  
post #5 of 7 (permalink) Old 03-16-2013, 05:22 PM
OOBER SUPER MEMBER
 
CruisinG6's Avatar
 
Join Date: Jul 2009
Posts: 4,232
 
I hear that, I wanted to do a cutout/dump just so I can hit a switch and scare the piss out of people on the street.
CruisinG6 is offline  
post #6 of 7 (permalink) Old 03-17-2013, 05:30 PM Thread Starter
Junior Member
 
Join Date: Aug 2011
Location: Georgia
Age: 28
Posts: 6
 
Exactly, I hate how quiet our exhaust system is. And the nanny controls wont let us rev past 4k rpm when sitting still so it's hard to show off lol I have a cone filter installed and that really brought up the volume but more coudnt hurt.
WasianGTP is offline  
post #7 of 7 (permalink) Old 03-17-2013, 07:11 PM
OOBER SUPER MEMBER
 
CruisinG6's Avatar
 
Join Date: Jul 2009
Posts: 4,232
 
Re: Electronic exhaust cutout

Honestly for my 4 Banger an intake and an exhaust resonator delete made it sound a lot better through the whole rpm range both with and without load. Its not overly loud but its not droning.
CruisinG6 is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac G6 Forum > Technical Discussion & Modifications > Powertrain Performance Modifications

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac G6 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:
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:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
09 G6 GXP Major Electronic Issues kasegxp Problems and Solutions 6 09-14-2011 01:27 PM
Electronic Exhaust Cutoff: Anybody done this? Devriesd Powertrain Performance Modifications 4 12-25-2009 06:27 PM
Electronic??? PontiacNewbee08 Problems and Solutions 2 02-10-2008 10:46 PM

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

 
For the best viewing experience please update your browser to Google Chrome