Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Open Y pipe?

Thread Tools
 
Search this Thread
 
Old 01-27-2009, 09:24 PM
  #1  
Launching!
Thread Starter
iTrader: (12)
 
stonemonk's Avatar
 
Join Date: Jul 2005
Posts: 205
Likes: 0
Received 0 Likes on 0 Posts

Default Open Y pipe?

Would there be any gains to benefit from if I dropped the stock cat back and ran the stock manifolds and y pipe open?
Old 01-27-2009, 09:28 PM
  #2  
Launching!
iTrader: (3)
 
Mr CHI's Avatar
 
Join Date: Mar 2008
Location: Chicago,IL
Posts: 247
Likes: 0
Received 1 Like on 1 Post
Default

What do you think a Cutout Is?
Old 01-27-2009, 09:45 PM
  #3  
Launching!
Thread Starter
iTrader: (12)
 
stonemonk's Avatar
 
Join Date: Jul 2005
Posts: 205
Likes: 0
Received 0 Likes on 0 Posts

Default

Im aware, but with a cut out some exhaust still travels through to the stock muffler. Im guessing open y would be less restrictive
Old 01-27-2009, 09:49 PM
  #4  
Launching!
iTrader: (3)
 
Mr CHI's Avatar
 
Join Date: Mar 2008
Location: Chicago,IL
Posts: 247
Likes: 0
Received 1 Like on 1 Post
Default

Cheaper Too.
Old 01-27-2009, 09:50 PM
  #5  
TECH Junkie
iTrader: (11)
 
Full-Force's Avatar
 
Join Date: Aug 2004
Location: Upstate of SC
Posts: 3,069
Received 5 Likes on 4 Posts

Default

I did that for a day back when I got my car. It sounds terrible. Like a trash truck with a rusted out muffler.
Old 01-27-2009, 10:06 PM
  #6  
12 Second Club
iTrader: (12)
 
twitchtwice's Avatar
 
Join Date: May 2008
Posts: 2,612
Likes: 0
Received 1 Like on 1 Post

Default

if you have stock manifolds it will sound like a 85 chevy pickup.

its best to have a muffler if your going to do that.
Old 01-27-2009, 10:18 PM
  #7  
TECH Fanatic
iTrader: (9)
 
sixvi6-camaro's Avatar
 
Join Date: Dec 2004
Location: Schaumburg, IL
Posts: 1,693
Likes: 0
Received 0 Likes on 0 Posts

Default

you can do it.. it sounds like crap. I'd at least clamp a bullet muffler onto the Y pipe just to give a decent sound.
Old 01-27-2009, 10:21 PM
  #8  
Launching!
iTrader: (51)
 
jcobra99's Avatar
 
Join Date: Jan 2009
Location: St. Louis Area
Posts: 277
Likes: 0
Received 0 Likes on 0 Posts

Default

get a cutout if your not going to follow emission laws you might as well remove the cats and put on a cutout. You will get the most gains
Old 01-27-2009, 10:33 PM
  #9  
TECH Fanatic
 
FiredUpZ28's Avatar
 
Join Date: Jun 2006
Location: Elgin, Il
Posts: 1,287
Likes: 0
Received 1 Like on 1 Post

Default

You guys are nuts, we ran a cutout on the Bird for years on stock manifolds/Y and it wasn't that bad. Sure it doesn't sound that great compared to long tubes, ORY, and a catback - but sure works on a budget.
Old 01-27-2009, 10:48 PM
  #10  
TECH Addict
iTrader: (39)
 
jrob56's Avatar
 
Join Date: Jul 2006
Location: Indianapolis, IN
Posts: 2,153
Received 0 Likes on 0 Posts

Default

i ran my longtubes and y open for a couple days before i got it my cutout welded in and hooked up with my catcack. i think it sounded better than the cutout, my cutout has this terrible vibrating raspy sound at like 2000 rpm that wasnt near as bad with the open y...i would put a bullet or something on it though check the classifieds here and you will be able to find something to clamp on there for cheap!
Old 01-27-2009, 10:59 PM
  #11  
TECH Senior Member
iTrader: (96)
 
01ssreda4's Avatar
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,240
Likes: 0
Received 79 Likes on 70 Posts

Default

Originally Posted by Full-Force
I did that for a day back when I got my car. It sounds terrible. Like a trash truck with a rusted out muffler.
i love honesty
Old 01-27-2009, 11:01 PM
  #12  
TECH Resident
 
nighthawk15's Avatar
 
Join Date: Jul 2007
Location: Spokane, WA
Posts: 749
Received 1 Like on 1 Post

Default

It sounds good if you dig dump trucks. Maybe try a chambered muffler like a sweet thunder or power stick dumped off the Y?
Old 01-27-2009, 11:20 PM
  #13  
TECH Addict
iTrader: (39)
 
jrob56's Avatar
 
Join Date: Jul 2006
Location: Indianapolis, IN
Posts: 2,153
Received 0 Likes on 0 Posts

Default

Originally Posted by nighthawk15
It sounds good if you dig dump trucks. Maybe try a chambered muffler like a sweet thunder or power stick dumped off the Y?
i dont know how it sounds like a dump truck maybe on stock manifolds but definitely not with longtubes, i love loud though id proly run open headers if i could get away with it...
Old 01-28-2009, 04:13 AM
  #14  
ЯєŧąяĐ Єl¡m¡иąŧøя ™
iTrader: (18)
 
orangeapeel's Avatar
 
Join Date: Nov 2004
Location: Justin, TX
Posts: 16,083
Likes: 0
Received 4 Likes on 4 Posts

Default

If you are primarily stock you may get a benefit from it. I would personally just have a 3" cutout welded on. You will most likely see the same gain, and this will actually divert your exhaust enough to give you less problems for your undercarriage: ie: Brake lines, blacked floorboards. Also you will have the option to cap it off if it gets annoying.
Old 01-28-2009, 06:13 AM
  #15  
TECH Fanatic
iTrader: (2)
 
stumprrp's Avatar
 
Join Date: Aug 2007
Location: Rhode Island
Posts: 1,474
Likes: 0
Received 0 Likes on 0 Posts

Default

man you guys really like nothing that has to do with open, i think the open Y sounds really good and aggressive but its very loud, probably quieter with manis
Old 01-28-2009, 11:37 AM
  #16  
Launching!
Thread Starter
iTrader: (12)
 
stonemonk's Avatar
 
Join Date: Jul 2005
Posts: 205
Likes: 0
Received 0 Likes on 0 Posts

Default

I dont mind the sound, I have ran this before on my last camaro, i was more so wondering if you'd get a better performance gain then a catback. This is only temporary until i get headers and y pipe, I have a 3'' cut out for that which i plan to run w/ the stock catback.
Old 01-28-2009, 06:12 PM
  #17  
TECH Senior Member
iTrader: (96)
 
01ssreda4's Avatar
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,240
Likes: 0
Received 79 Likes on 70 Posts

Default

my cammed w duals are louder then non-cammed cars cut-outs. its not the loudness its the tone of the cut-out i dont like.
Old 01-28-2009, 06:22 PM
  #18  
TECH Resident
 
nighthawk15's Avatar
 
Join Date: Jul 2007
Location: Spokane, WA
Posts: 749
Received 1 Like on 1 Post

Default

Originally Posted by jrob56
i dont know how it sounds like a dump truck maybe on stock manifolds but definitely not with longtubes, i love loud though id proly run open headers if i could get away with it...
Oh yeah dude, I love loud too and agree it would probably sound different with LTs. I'm getting catless 3" duals dumped at the axle with 16" powersticks off of Kooks LTs soon There's a guy over at z28.com with an LS1 car running pacesetter LTs through an ORY and no muffler (out the back though) and it sounds great. The OP said stock manifolds though. Then again since it sounds like he's keeping the cats and what I've heard before was stock manifolds, open Y, no cats.

Last edited by nighthawk15; 01-28-2009 at 06:28 PM.
Old 01-28-2009, 07:03 PM
  #19  
TECH Addict
iTrader: (39)
 
jrob56's Avatar
 
Join Date: Jul 2006
Location: Indianapolis, IN
Posts: 2,153
Received 0 Likes on 0 Posts

Default

Originally Posted by nighthawk15
Oh yeah dude, I love loud too and agree it would probably sound different with LTs. I'm getting catless 3" duals dumped at the axle with 16" powersticks off of Kooks LTs soon There's a guy over at z28.com with an LS1 car running pacesetter LTs through an ORY and no muffler (out the back though) and it sounds great. The OP said stock manifolds though. Then again since it sounds like he's keeping the cats and what I've heard before was stock manifolds, open Y, no cats.
ya good point i dont know what maniflods with cats would sound like, has to be better than stock though my car was so quiet it was sickening. that sounds like a nice setup you are going to have. i am getting the TSP duals with sweet thunders myself as soon as the budget will allow for it



Quick Reply: Open Y pipe?



All times are GMT -5. The time now is 12:42 PM.