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

Headers and Y-Pipe

Thread Tools
 
Search this Thread
 
Old Apr 7, 2008 | 02:18 PM
  #1  
lcars's Avatar
Thread Starter
Staging Lane
 
Joined: Mar 2008
Posts: 89
Likes: 0
From: Michigan
Default Headers and Y-Pipe

I'm thinking of upgrading from my stock manifolds to some LT Headers. My question is I already have the SLP Y-Pipe. Am I going to need to get a larger Y to match the 3" diameter on the headers??????
Reply
Old Apr 7, 2008 | 02:22 PM
  #2  
radz282003's Avatar
TECH Resident
iTrader: (1)
 
Joined: May 2004
Posts: 848
Likes: 0
From: Tree-Hugging, Bug eating CALI'
Default

Yes; you should probably consider getting the Y-pipe from the manufacturer of your LTs.
Reply
Old Apr 7, 2008 | 02:46 PM
  #3  
'99bluez's Avatar
12 Second Club
iTrader: (6)
 
Joined: Mar 2007
Posts: 285
Likes: 0
From: Chicago
Default

Originally Posted by lcars
I'm thinking of upgrading from my stock manifolds to some LT Headers. My question is I already have the SLP Y-Pipe. Am I going to need to get a larger Y to match the 3" diameter on the headers??????
you will need a new y pipe. The SLP Y pipe fits to the factory manifolds or maybe shorties only. It will not even come close to working with any brand of longtube headers.
Reply
Old Apr 7, 2008 | 03:49 PM
  #4  
thebart455's Avatar
TECH Apprentice
 
Joined: Oct 2007
Posts: 303
Likes: 0
From: eastern ky
Default

Originally Posted by lcars
I'm thinking of upgrading from my stock manifolds to some LT Headers. My question is I already have the SLP Y-Pipe. Am I going to need to get a larger Y to match the 3" diameter on the headers??????
i would go with some pacesetters and a texas speed ory they fit very well
Reply
Old Apr 7, 2008 | 05:51 PM
  #5  
SuperSport's Avatar
Launching!
 
Joined: May 2002
Posts: 209
Likes: 0
From: Orlando, FL
Default

Just put on some Kooks... sounds awesome!
Reply
Old Apr 7, 2008 | 05:57 PM
  #6  
motoo344's Avatar
TECH Fanatic
iTrader: (19)
 
Joined: Jul 2006
Posts: 1,072
Likes: 0
From: Doylestown, PA
Default

Originally Posted by thebart455
i would go with some pacesetters and a texas speed ory they fit very well

I would agree, its a nice setup.
Reply
Old Apr 8, 2008 | 10:39 AM
  #7  
lcars's Avatar
Thread Starter
Staging Lane
 
Joined: Mar 2008
Posts: 89
Likes: 0
From: Michigan
Default

Where would be a good place to order the Pacesetters and the Y????
Reply
Old Apr 8, 2008 | 10:47 PM
  #8  
RevGTO's Avatar
Pontiacerator
20 Year Member
Photogenic
Liked
Loved
iTrader: (12)
 
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Default

You can cut the SLP Y to accommodate the LT's and use a 3">2.5" reducer and some pipe to connect them. I would think that a competent exhaust shop could do the work without too much trouble.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Apr 9, 2008 | 08:03 PM
  #9  
taws6m6's Avatar
11 Second Club
iTrader: (37)
 
Joined: Jan 2007
Posts: 1,383
Likes: 0
From: northwest La
Default

Get a new y, Way better than that slp one. I used to have it too
Reply
Old Apr 9, 2008 | 09:45 PM
  #10  
95GreenZ28's Avatar
TECH Addict
iTrader: (70)
 
Joined: Apr 2007
Posts: 2,155
Likes: 0
From: Amarillo, Texas
Default

Texas speed sells the headers and y. They have kickass customer service for sure!
Reply
Old Apr 9, 2008 | 11:25 PM
  #11  
Raptor_WS6's Avatar
TECH Fanatic
15 Year Member
iTrader: (23)
 
Joined: Feb 2008
Posts: 1,838
Likes: 0
From: Los Angeles, CA
Default

get a new y

i bought the hooker Lt's and ORY and had ZERO fitment issues
Reply
Old Apr 9, 2008 | 11:39 PM
  #12  
Smokin00WS6's Avatar
TECH Fanatic
20 Year Member
iTrader: (4)
 
Joined: Dec 2003
Posts: 1,080
Likes: 0
From: Pennsylvania
Default

AHR has a sweet LT and catter or ORY package that is a good bang for the buck. New Era Performance (sponser) has them. SLP Y is hard to match up, and will be less frustrating in the end for you.
Reply




All times are GMT -5. The time now is 02:52 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