Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Would True duals help me that much?

Thread Tools
 
Search this Thread
 
Old Jan 31, 2011 | 05:47 PM
  #1  
adrynalinjunkie's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Oct 2009
Posts: 430
Likes: 2
Default Would True duals help me that much?

I just bought a LQ9 from a fellow forum member that has the new TSP 227 heads and was making 480 rwhp through his Kooks 1 3/4" LT's .

He felt the headers were holding him back a little.

I have the exact same Kooks (I think) That are 1 3/4" od. and about 1.5" ID.

I am thinking of ordering the new TSP 1 7/8" headers, my question is my 3" SLP Loud mouth II set up going to hold me back? would it be worth it to spend the money on true duals?

Also what would the difference be between the ORY that I have in there now and putting the 8 year old (but clean low mileage) SLP cats back in?

In short would I really benefit that much from the true duals, and how much would re-installing the SLP cats hurt me?
Reply
Old Jan 31, 2011 | 06:15 PM
  #2  
99 Blue Bird's Avatar
TECH Resident
iTrader: (3)
 
Joined: May 2008
Posts: 832
Likes: 2
From: CALI 707
Default

i went from SLP headers, ory, and LM1 to TSP 1 7/8th headers and true duals and it made a huge difference. ran way stronger. so im gonna have to say that there will be a noticeable difference if you went with that exhaust.
Reply
Old Feb 1, 2011 | 01:32 AM
  #3  
Whiteaw57's Avatar
TECH Resident
iTrader: (2)
 
Joined: Sep 2010
Posts: 909
Likes: 0
From: Salisbury, NC
Default

See I think the LMII is a pretty free setup. Buddy broke 400 hp cam only in an LS1 with a 233/239 114lsa with pacesetters and the LMII
Reply
Old Feb 1, 2011 | 02:45 AM
  #4  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

I felt a difference going from a 3 inch Y pipe to 3 inch duals on a stock internal motor.
Reply




All times are GMT -5. The time now is 02:36 PM.

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