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

What size for custom dual setup?

Thread Tools
 
Search this Thread
 
Old Mar 17, 2006 | 09:35 PM
  #1  
SVT THIS's Avatar
Thread Starter
TECH Addict
20 Year Member
iTrader: (27)
 
Joined: May 2005
Posts: 2,237
Likes: 1
From: Owasso, Ok
Default What size for custom dual setup?

I am going to be running an LS6 intake, lid, TSP magic stick 3, and pacesetter LT headers. What size pipes would I need to be running for a custom dual setup? Thanks.
Reply
Old Mar 17, 2006 | 09:54 PM
  #2  
Redneck Z's Avatar
TECH Addict
iTrader: (3)
 
Joined: Feb 2005
Posts: 2,305
Likes: 2
From: Citrus Heights, CA
Default

2.5"
Reply
Old Mar 17, 2006 | 10:05 PM
  #3  
LS69TA's Avatar
TECH Veteran
iTrader: (30)
 
Joined: Jan 2003
Posts: 4,391
Likes: 0
From: Texarkana, Tx
Default

2.5" would be sufficient, but I'd go ahead and put 3" if you're not lowered.
Reply
Old Mar 17, 2006 | 10:28 PM
  #4  
blkZ28spt's Avatar
11 Second Club
 
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Default

2.5" will be fine unless you plan to make, what is is, >450 rwhp in the future.

Leaving that possibility open I would go 3" unless you are lowered, in which case I would return to stock ride height and go 3". Suspension geometry is a little off when lowered, and you might want to do something fun like spray it in the future.
Reply
Old Mar 18, 2006 | 09:46 AM
  #5  
Lane's Avatar
TECH Resident
iTrader: (1)
 
Joined: Nov 2001
Posts: 955
Likes: 0
From: Vertigo
Default

If you're using an X crossover, you want the crossover diameter to match the header collector size. IE - 3" collectors, you would run at least 3" to the X. You can reduce after the X if you want.

This is what Dr. Gas recommends with their X.
Reply




All times are GMT -5. The time now is 10:58 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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