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

Need Help with Headers

Thread Tools
 
Search this Thread
 
Old Dec 30, 2005 | 03:43 PM
  #1  
99 Predator's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Dec 2005
Posts: 217
Likes: 0
From: Marlboro, NJ
Default Need Help with Headers

I just recently installed a magnaflow cat back and an SLP Lid. i was thinking of doing headers next but im really not too sure which ones to pick. i want to keep my cats for sound and inspection purposes. im definitely going to add long tubes so am i going to need a catted y? which combo would be the best? im not looking for the top brand but something in the middle. i also want headers that wont ruin the sound of my car. its got a deep sound to it and the tone is perfect for me, so i dont anything that will give it rasp or drone. im not sure how strict NJ is about inspection but would i pass with a catted y and LTs?
Reply
Old Dec 30, 2005 | 03:47 PM
  #2  
FLA02TA's Avatar
TECH Regular
iTrader: (5)
 
Joined: Jul 2005
Posts: 495
Likes: 0
From: Sarasota, FL
Default

I can't directly answer your question, but I can tell you that the TSP catted-Y has no O2 provisions and throws codes. It also smells pretty bad back standing behind the car, but not sitting in it or standing around it (i.e., not THAT bad).

So I'd assume that any high-flow cats on a Y pipe will be the same. Not gonna pass a test, but sound great. Correct me if I'm wrong, since the TSP is the only Y with high-flow cats I've been exposed to.

Maybe fabricate a Y with CARB certified cats to pass emissions. I've read that no LT will pass anyway, in a strict state like California. I also recall reading that NJ is pretty **** about them as well.
Reply
Old Dec 30, 2005 | 04:25 PM
  #3  
99 Predator's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Dec 2005
Posts: 217
Likes: 0
From: Marlboro, NJ
Default

thanks for the reply. where could i get a TSP y pipe? anybody else with more advice?
Reply
Old Dec 30, 2005 | 06:09 PM
  #4  
SouthFL.02.SS's Avatar
!LS1 11 Second Club
 
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Default

QTP High Velocity Merge Collector Long Tubes for $750 (price break from $1100) are hands down the best LT for the money on the market right now.
Pacesetters are about half that price and are not made of stainless (as QTP's) and do not feature the high velocity collector.

QTP LT's, + catted QTP Y-pipe (one of the best flowing in the business) will net you an awesome setup.

Also, all long tube headers pretty much sound the same.
Reply
Old Dec 30, 2005 | 06:50 PM
  #5  
Grimes's Avatar
TECH Addict
iTrader: (3)
 
Joined: Mar 2003
Posts: 2,636
Likes: 2
From: Northern NJ
Default

nj does a check to see if you have any codes thrown by the computer. they don't do the tailpipe sniffer anymore. (they have the option of bringing it back at a later date if they wish, pretty sure).
Reply
Old Dec 30, 2005 | 06:57 PM
  #6  
bad6as's Avatar
11 Second Club
iTrader: (17)
 
Joined: Mar 2005
Posts: 4,796
Likes: 0
From: Maryland
Default

edlebrock is what im gonna look in to
Reply
Old Dec 30, 2005 | 07:06 PM
  #7  
Griswold's Avatar
TECH Regular
20 Year Member
iTrader: (5)
 
Joined: Apr 2002
Posts: 435
Likes: 0
From: DFW
Default

I have the flp's (now dynatechs) with the interchangeable cats and offroad pipes. I really like them. You will retain the same sound as long as you run cats. If you run an offroad y it will be raspy and more high pitched.
Reply
Old Dec 30, 2005 | 07:16 PM
  #8  
99 Predator's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Dec 2005
Posts: 217
Likes: 0
From: Marlboro, NJ
Default

What about Jet Hot? ive read some good things and they seem pretty good for the money. if i do choose to go with the QTP set up how much HP should i expect from it?
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 Dec 30, 2005 | 08:26 PM
  #9  
GTObsessor's Avatar
TECH Resident
iTrader: (2)
 
Joined: Jul 2005
Posts: 860
Likes: 0
From: CA
Default

Just deleat the codes for the rear o2's...
Reply
Old Dec 31, 2005 | 12:39 AM
  #10  
SouthFL.02.SS's Avatar
!LS1 11 Second Club
 
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Default

Originally Posted by 99 Predator
What about Jet Hot? ive read some good things and they seem pretty good for the money. if i do choose to go with the QTP set up how much HP should i expect from it?
On a stock internal car (stock cam, stock heads), most any LT will provide similar power. Full Bolt-on setups (LT's, UD pulley, Ported TB, etc.) range from 320-350rwhp on M6's. Once you start swapping a cam and heads, a the most efficient LT's start to shine.
Reply
Old Dec 31, 2005 | 03:48 AM
  #11  
99 Predator's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Dec 2005
Posts: 217
Likes: 0
From: Marlboro, NJ
Default

thanks a lot for the replies. the only thing im still curious about is the catted y pipe. which flow the best for a good price?
Reply
Old Dec 31, 2005 | 05:18 AM
  #12  
eallanboggs's Avatar
TECH Addict
iTrader: (1)
 
Joined: Mar 2002
Posts: 2,080
Likes: 1
From: New Orleans
Default

Your the first person I can remember saying they want to keep their cats for the sound they emit. Sounds like an oxymoron to me. You need to gut your cats and get some 02 Simms if your worried about a DTC turning on your SES. Some headers and gutted cats. That spells raspy with a capital "R".
Reply
Old Dec 31, 2005 | 07:51 AM
  #13  
dudas35's Avatar
Launching!
iTrader: (4)
 
Joined: Aug 2003
Posts: 222
Likes: 0
From: Lagrange Ga/Mayport Fl
Default

I ran an ORY for awhile and got tired of the sound also. I purchased the TSP catted y and had no terrible smell but it did sound a lot better, got rid of all the rasp. The QTP setup is a very nice catted y but is much more expensive.
Reply
Old Dec 31, 2005 | 07:11 PM
  #14  
99 Predator's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Dec 2005
Posts: 217
Likes: 0
From: Marlboro, NJ
Default

what about the qtp catted y? its got magnaflow cats built in and looks pretty good? anyone running with it or kno anything about it?
Reply
Old Dec 31, 2005 | 07:39 PM
  #15  
SouthFL.02.SS's Avatar
!LS1 11 Second Club
 
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Default

Originally Posted by 99 Predator
what about the qtp catted y? its got magnaflow cats built in and looks pretty good? anyone running with it or kno anything about it?
It's one of the best flowing designs in a Y-pipe, particularly due to the Flowmaster Scavenger Merge collector it uses. Fitment is a little tricky, but once you get it in place well, it's fine.
Reply
Old Dec 31, 2005 | 07:49 PM
  #16  
dudas35's Avatar
Launching!
iTrader: (4)
 
Joined: Aug 2003
Posts: 222
Likes: 0
From: Lagrange Ga/Mayport Fl
Default

I have a buddy that i helped install the QTP on, the collector on the Y-pipe is freaking huge, it has an adaptor to downsize it to the catback. Seems to be a very good piece although a little pricey.
Reply
Old Dec 31, 2005 | 08:08 PM
  #17  
99 Predator's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Dec 2005
Posts: 217
Likes: 0
From: Marlboro, NJ
Default

would jet hot headers, a qtp catted y, and a magnaflow cat back be a good set up? would i have any clearance issues?
Reply




All times are GMT -5. The time now is 05:39 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