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

considering going back to true duals....

Thread Tools
 
Search this Thread
 
Old Mar 18, 2005 | 11:31 PM
  #1  
Raise's Avatar
Thread Starter
TECH Addict
20 Year Member
iTrader: (31)
 
Joined: Dec 2003
Posts: 2,152
Likes: 0
From: Virginia Beach, Va
Default considering going back to true duals....

well, this is the second time i have sold my true duals and gone back to a y pipe catback setup. but i miss that sound so bad it hurts!!! the main reason i got rid of them is because the whole interior of the car vibrated to no end every time i shifted i got tired of it after a while. well, this catback thing has a nice "sleeper" vibe to it, but i miss the muscle sound of the true duals :sad: i was wondering if maybe my system wasnt setup right...and thats why i was getting the bad vibration. anyone else experienced this vibration im talking about?? i dont mind the loud sound, but that vibration was irritating after a while. is there a way to cure that? also, the bullets gave me a bad clearance problem. the top of the x pipe wasnt the problem but the bullets gave me shitty clearance. if i go with duals again, i will definitely be going with sweet thunder mufflers. i like the sound a whole lot. do they give better clearance than the bullets?
Reply
Old Mar 18, 2005 | 11:59 PM
  #2  
kpowr82's Avatar
TECH Resident
iTrader: (9)
 
Joined: Jan 2004
Posts: 967
Likes: 0
From: Rochester, MI
Default

I gained quite a bit of clearance with the sweet thunders over the bullets. Not only do they have a 3 inch diameter instead of 4, but you can tuck them up higher. So, you could potentialy gain an inch of clearance. The monkey I had weld my system together f'd up though, so I decided to order some duals from Lane and sell my setup.
Reply
Old Mar 19, 2005 | 12:10 AM
  #3  
HavATampa's Avatar
TECH Addict
iTrader: (49)
 
Joined: Aug 2003
Posts: 2,128
Likes: 1
From: Louisiana
Default

Are you talking about dumps before the axles causing drone? I have true duals out the back and don't have a vibration problem. I had to clearance a few places that were hitting on the floorboard, but no big deal. Run the pipes over the axle and put the bullets in the back instead of under the floorpan. Makes for more clearance and less noise in the cockpit.
Reply
Old Mar 19, 2005 | 12:29 AM
  #4  
Raise's Avatar
Thread Starter
TECH Addict
20 Year Member
iTrader: (31)
 
Joined: Dec 2003
Posts: 2,152
Likes: 0
From: Virginia Beach, Va
Default

yeah i had them dumped before the axle. i am not spending the money to have both pipes go over/under the axle. im thinking of going with lanes setup with a smaller diameter muffler for better clearance. im still wondering how to cut down on that interior vibration i use to get every time i shifted. i guess its because they were bullets....or maybe just because of where they were placed right beneath the floorboard. any ideas?
hey kpower82, do u have your lanes system yet?
Reply
Old Mar 19, 2005 | 06:08 AM
  #5  
smokin' joe 00 ss's Avatar
TECH Fanatic
 
Joined: Dec 2001
Posts: 1,060
Likes: 0
From: MI
Default

[QUOTE=Wickid Z]yeah i had them dumped before the axle. i am not spending the money to have both pipes go over/under the axle.

Ahh.... how many exhaust system's have you spent $$$ on already? Why not just do it right for the last time and do it over the axle out the back and be happy.
Reply
Old Mar 19, 2005 | 06:21 AM
  #6  
SouthFL.02.SS's Avatar
!LS1 11 Second Club
 
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Default

[QUOTE=smokin' joe 00 ss]
Originally Posted by Wickid Z
yeah i had them dumped before the axle. i am not spending the money to have both pipes go over/under the axle.

Ahh.... how many exhaust system's have you spent $$$ on already? Why not just do it right for the last time and do it over the axle out the back and be happy.
Definately the way to do TD's.

I've done the Y to X to Y thing also. I'm really liking the QTP Dual Cutout ORY. Between the open cutouts (insanity) and the smooth deep sound of the SLP 2OTL catback, I don't miss my ol' X-pipe at all (though it sounded great also).
Reply
Old Mar 19, 2005 | 08:32 AM
  #7  
Raise's Avatar
Thread Starter
TECH Addict
20 Year Member
iTrader: (31)
 
Joined: Dec 2003
Posts: 2,152
Likes: 0
From: Virginia Beach, Va
Default

[QUOTE=smokin' joe 00 ss]
Originally Posted by Wickid Z
yeah i had them dumped before the axle. i am not spending the money to have both pipes go over/under the axle.

Ahh.... how many exhaust system's have you spent $$$ on already? Why not just do it right for the last time and do it over the axle out the back and be happy.
well, i really dont know anyone around here who can custom fab that kind of system.
Reply
Old Mar 19, 2005 | 10:11 AM
  #8  
HavATampa's Avatar
TECH Addict
iTrader: (49)
 
Joined: Aug 2003
Posts: 2,128
Likes: 1
From: Louisiana
Default

I don't see how you plan on getting rid of the noise and vibrations with the exhaust exiting right under your ****. You've tried that plan twice and didn't like the results. Any decent welder with a lift can make a nice exhaust system. Get under the car and draw up some crude plans on what you want and buy some mandrel 90's and 180's from Jegs, Summit or JC Whitney. Bring your plans and parts to several different shops to see if they will work with you. It may not be as pretty as Lane's $1200 setup, but you'll save a ton of money and get the sound you want. The biggest problem you'll have is getting decent sized mufflers to fit somewhere in the equation.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Mar 19, 2005 | 10:40 AM
  #9  
Bharnz's Avatar
11 Second Club
 
Joined: Nov 2001
Posts: 268
Likes: 0
From: Soo Mich.
Default

Yup, the change in my ash tray rattles more, but I love the sound. I have the Flo-pro Twisters on, and at 80 mph cruise, its only a little louder..... well it is untill I tromp on her.
http://www.boomspeed.com/bharnz/start.mpg
http://www.boomspeed.com/bharnz/rev.mpg
Reply
Old Mar 21, 2005 | 10:07 AM
  #10  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

How about keeping the Y pipe you have now, and right after the merge, weld on another 3" to dual 2.5" Y pipe (just the Y junction) backwards. This will create an X pipe out of your existing Y pipe. Now you can run both 2.5" pipes down the passenger side and over the axle. This will be my new setup, but I probably wont start with a pre made Y pipe, ill just build it all from scratch.

-Tony
Reply
Old Mar 21, 2005 | 08:50 PM
  #11  
Keenov's Avatar
11 Second Club
iTrader: (5)
 
Joined: Mar 2004
Posts: 1,335
Likes: 1
From: Virginia Beach, VA
Default

I only got vibrations when I put change in the cup holder. Nothing else vibrated.
Reply
Old Mar 21, 2005 | 09:44 PM
  #12  
1CAMWNDR's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Nov 2001
Posts: 4,247
Likes: 2
Default

Originally Posted by GuitsBoy
How about keeping the Y pipe you have now, and right after the merge, weld on another 3" to dual 2.5" Y pipe (just the Y junction) backwards. This will create an X pipe out of your existing Y pipe. Now you can run both 2.5" pipes down the passenger side and over the axle. This will be my new setup, but I probably wont start with a pre made Y pipe, ill just build it all from scratch.

-Tony
That will not work at all to scavenge pulses. That is the purpose of an X-pipe. Instead of doing that just skip the X all together and do 2.5" pipe all the way from headers back.
Reply
Old Mar 21, 2005 | 09:54 PM
  #13  
Jason 98 TA's Avatar
LS1Tech Premium Sponsor
iTrader: (4)
 
Joined: Nov 2001
Posts: 4,229
Likes: 4
From: Texas!
Default

We have another run of tsp duals going together with spiral flow mufflers. The last set I tried seemed to take alot of the interior noise out of the car we installed them on.
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Reply
Old Mar 21, 2005 | 11:10 PM
  #14  
Nittany_marine's Avatar
11 Second Club
iTrader: (7)
 
Joined: Oct 2004
Posts: 637
Likes: 1
From: Charleston, SC
Default

I have mine dumping at the sides, but not sticking out from under the body. You can only see them if you look for them. It got rid of the drone, complys with my emission laws as far as the gasses exiting from under the body, and the sound is teriffic. It bounces off other cars, and the buildings. I never want to go any other way.
Here are a few pics.



Reply
Old Mar 21, 2005 | 11:20 PM
  #15  
psykoTA's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Aug 2004
Posts: 1,236
Likes: 0
From: Central FL
Default

Originally Posted by Wickid Z
well, i really dont know anyone around here who can custom fab that kind of system.
There is a guy in Maryland if your willing to go that far.
Reply
Old Mar 22, 2005 | 07:59 AM
  #16  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

Originally Posted by 1CAMWNDR
That will not work at all to scavenge pulses. That is the purpose of an X-pipe.
The way that I mean to describe it would turn out looking identical to a siamesed X pipe, which if memory servers correctly, actually scavenges better as well as having a larger cross sectional area than normal straight X pipes. I should have clarified that you dont want to have a 12" section of straight pipe between the two Y merges, as that would not work correctly. Now if youve only got about an inch between the merges, that will work fine.

-T
Reply
Old Mar 22, 2005 | 12:09 PM
  #17  
Camaro99SS's Avatar
TECH Resident
20 Year Member
iTrader: (4)
 
Joined: Nov 2004
Posts: 879
Likes: 0
From: Nashville, TN
Default

Lane's setup costs $495 no matter if you go 2.5", 3", or choose different size or brand mufflers. It's just $495 plus whatever shipping is, not a bad deal at all considering you get a Dr. Gas X and the kit is custom built and welded so you will not have clearance and install/fitment problems. Plus Texas Speed just started charging shipping for their kit, so the price difference between Lanes and TSP is even smaller.

Jason
Reply
Old Mar 22, 2005 | 08:30 PM
  #18  
Raise's Avatar
Thread Starter
TECH Addict
20 Year Member
iTrader: (31)
 
Joined: Dec 2003
Posts: 2,152
Likes: 0
From: Virginia Beach, Va
Default

nah, ive decided to go with the hooker catback and put a cutout in the i pipe.
Reply




All times are GMT -5. The time now is 05:42 PM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE