LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Got my Cutout! Brand,Placement, Sound, Vids, Pictures, Mods ect.

Old 12-14-2009, 08:39 PM
  #1  
TECH Apprentice
Thread Starter
 
Z28 Autobot's Avatar
 
Join Date: Jul 2005
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
Thumbs up Got my Cutout! Brand,Placement, Sound, Vids, Pictures, Mods ect.

Okay guys got an early X-Mas present. A 2.5" QTP electric cutout.

I have been doing the search like any good person would do on here.
The upside: There are many posts about a cutout.
The downside: There are many posts about a cutout.

I was hoping in my quest for info to also get a cutout sticky going for our LS4's and those same questions I am asking.

The Brand: I have is QTP so I will go with that one. But please post your brand.


Placement: I think this is key topic. One reason is mods done to the car. a DP or a Res. delete or cat removal. To an extent what have you done besides the cutout to your exhaust. This will determine the sound and maybe the final placement your looking for.

Sound:

Where the DP is? Loudest?
Replacing where the Resonator and or even th cat is. Loud?
after cat? Still loud?
Just before the "Y" bend. Least cabin noise from the cutout?

So posting vids, pictures and everything you could think of to help make it easy for anyone to come in here and get thier best help in installing a cutout on thier car.
Cross examining threads is getting a little muddied in my head and it looks like a new one pops up like ohhh say Today

So here it goes:
I myself have a stock exhaust system. I had a 1994 Z28 with a cutout and loved it. It was installed just before the bend in the pipe going over the rear axle. Loved it gave it that stock car sound. Now my Z though being an LT1 had only the one cat to filter through. Our LS4's have a resonator and a cat to go through. Would putting it closer to the cat be more what I am lookng for? Maybe before the cat? Being an electric I can adjust the sound.
I love the sound ChefChub has. But his exhaust has some work done to it. So not sure how to get that sound. maybe moving it to before the cat?
Like I said so many vids and so many posts I get lost in what I like and what I forgot I liked and can not go back and find it.

and last. If you have an electric. Where did you mount your switch? Any custom or cool way's you have thought of?


So yes another one with a cutout question but I hope to gather all of these thoughts ideas pics mods and vids in one thread!
Old 12-14-2009, 08:43 PM
  #2  
TECH Addict
iTrader: (5)
 
AlabamaGuy's Avatar
 
Join Date: Jun 2009
Posts: 2,802
Likes: 0
Received 0 Likes on 0 Posts
Default

QTP 2 1/4" about to upgrade to a 3"
Before the Y
No cat
Pretty loud.

Switch is in the center console.
Old 12-14-2009, 08:58 PM
  #3  
TECH Enthusiast
iTrader: (2)
 
mike690003's Avatar
 
Join Date: Nov 2007
Posts: 555
Likes: 0
Received 0 Likes on 0 Posts
Default

Ok tomorrow i'm going to take a few pics of my cutout ....maybe a vid too.
Old 12-14-2009, 09:02 PM
  #4  
TECH Addict
iTrader: (5)
 
AlabamaGuy's Avatar
 
Join Date: Jun 2009
Posts: 2,802
Likes: 0
Received 0 Likes on 0 Posts
Default

http://www.youtube.com/watch?v=_uRVT28pb18
Old 12-14-2009, 09:18 PM
  #5  
TECH Fanatic
iTrader: (2)
 
CenTexSS's Avatar
 
Join Date: Feb 2009
Location: Killeen, Texas.
Posts: 1,398
Likes: 0
Received 0 Likes on 0 Posts
Default

If this thread gets good info, should be a sticky.
Old 12-14-2009, 11:00 PM
  #6  
TECH Fanatic
iTrader: (3)
 
DP 08 GXP's Avatar
 
Join Date: Apr 2009
Location: Northwest, OH
Posts: 1,592
Likes: 0
Received 0 Likes on 0 Posts
Default

i went with the QTP 2.5'' cutout...right now it is where the res. used to be...it is pretty damn loud lol....pretty decent amount of drone in the cabin...i will be moving it onto the DP when i lower the car next spring. the switch is in front of the shifter on the console...here is a video.

http://s447.photobucket.com/albums/q...t=102_0430.flv

http://s447.photobucket.com/albums/q...t=102_0425.flv
Old 12-14-2009, 11:00 PM
  #7  
TECH Fanatic
iTrader: (3)
 
DP 08 GXP's Avatar
 
Join Date: Apr 2009
Location: Northwest, OH
Posts: 1,592
Likes: 0
Received 0 Likes on 0 Posts
Default

http://s447.photobucket.com/albums/q...t=102_0425.flv
Old 12-15-2009, 03:29 AM
  #8  
On The Tree
 
mixerda's Avatar
 
Join Date: Aug 2007
Location: Austin Tx.
Posts: 130
Likes: 0
Received 0 Likes on 0 Posts
Default

3" QTP located in the DP before the cat hooked up to 3" custom exhaust no res magnaflow muffs.




from when met up with Carlos from NAIOA at pluckers for some food and a few drinks

http://s55.photobucket.com/albums/g1...90614-2251.flv

Last edited by mixerda; 12-15-2009 at 03:36 AM.
Old 12-15-2009, 03:55 AM
  #9  
Banned
 
JP_GXP's Avatar
 
Join Date: Dec 2008
Location: Almost Arkansas, LA
Posts: 1,737
Likes: 0
Received 0 Likes on 0 Posts
Default

Replaced the cat, only cracked, lol.

http://www.youtube.com/watch?v=lGOx_95MPUQ

I still love mixerda's. How much was the cam and the swap?
Old 12-16-2009, 01:01 AM
  #10  
TECH Regular
 
Red03GT's Avatar
 
Join Date: Oct 2004
Location: Bay Area, CA
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts

Default

Summit 2.5"



Stock downpipe, no res
http://www.youtube.com/watch?v=k20GGfPQNtQ

At the track, catless downpipe & open cutout
http://www.youtube.com/watch?v=VP9ythWiBaA
http://www.youtube.com/watch?v=HSy7U...eature=related
http://www.youtube.com/watch?v=g5r4h...eature=related
Old 12-16-2009, 08:39 PM
  #11  
TECH Apprentice
Thread Starter
 
Z28 Autobot's Avatar
 
Join Date: Jul 2005
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
Default

some good stuff. Again got me thinking of where to put it.

Question does anyone have a pic somehow or diagram of how our exhaust is set up under the car. Like where the relation of the parts to the car are. Like from the DP to what comes next right to the tailpipes.

I am thinking of replacing it where the resonator is but thats still after the cat right? If so that should give me almost the same sound range as my LT1's
Old 12-16-2009, 09:41 PM
  #12  
TECH Fanatic
iTrader: (3)
 
DP 08 GXP's Avatar
 
Join Date: Apr 2009
Location: Northwest, OH
Posts: 1,592
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Z28 Autobot
some good stuff. Again got me thinking of where to put it.

Question does anyone have a pic somehow or diagram of how our exhaust is set up under the car. Like where the relation of the parts to the car are. Like from the DP to what comes next right to the tailpipes.

I am thinking of replacing it where the resonator is but thats still after the cat right? If so that should give me almost the same sound range as my LT1's
it isnt the best but i hope it helps. if you do it where the res. is it will be after the cat and you will lose about 2'' or so of clearance. mine is getting moved to the DP for that reason since i will be lowered next spring.





Old 01-23-2010, 09:45 AM
  #13  
TECH Apprentice
Thread Starter
 
Z28 Autobot's Avatar
 
Join Date: Jul 2005
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
Default

thanks for the input...
and 2" GC is a lot where i am. hmmmm..

ok. best place to protect it under the car from snow and ice as best as i could?
Old 01-27-2010, 12:49 PM
  #14  
TECH Resident
iTrader: (1)
 
Pauls325's Avatar
 
Join Date: May 2008
Location: Minnetonka,MN or Fargo
Posts: 800
Likes: 0
Received 1 Like on 1 Post

Default

mine is the same placement as red03gt

http://www.youtube.com/watch?v=biXHw-L5ixU
Old 01-27-2010, 01:20 PM
  #15  
TECH Fanatic
iTrader: (3)
 
DP 08 GXP's Avatar
 
Join Date: Apr 2009
Location: Northwest, OH
Posts: 1,592
Likes: 0
Received 0 Likes on 0 Posts
Default

speaking of cutouts i think the salt just made mine take a ****.
Old 02-10-2010, 10:42 PM
  #16  
On The Tree
 
johnrogeri12's Avatar
 
Join Date: Oct 2008
Location: Houston, TX
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts
Default

mixerda, why doesnt your o2 sensor shut off the car if your pretty much running straight headers??
Old 02-10-2010, 11:07 PM
  #17  
TECH Fanatic
iTrader: (2)
 
CenTexSS's Avatar
 
Join Date: Feb 2009
Location: Killeen, Texas.
Posts: 1,398
Likes: 0
Received 0 Likes on 0 Posts
Default

Mix has HPtuners
Old 02-10-2010, 11:44 PM
  #18  
Launching!
iTrader: (2)
 
SSGoat's Avatar
 
Join Date: May 2009
Location: Long Beach CA.
Posts: 245
Likes: 0
Received 0 Likes on 0 Posts

Default

mix is god..
Old 02-11-2010, 05:26 PM
  #19  
TECH Fanatic
iTrader: (3)
 
DP 08 GXP's Avatar
 
Join Date: Apr 2009
Location: Northwest, OH
Posts: 1,592
Likes: 0
Received 0 Likes on 0 Posts
Default

why would the O2 sensor shut off the car?
Old 02-11-2010, 08:33 PM
  #20  
On The Tree
 
johnrogeri12's Avatar
 
Join Date: Oct 2008
Location: Houston, TX
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts
Default

Not quite sure... jw... So would it not? or would it wiht out a HPtuner

Thread Tools
Search this Thread
Quick Reply: Got my Cutout! Brand,Placement, Sound, Vids, Pictures, Mods ect.



All times are GMT -5. The time now is 09:29 AM.