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

ORY - Magnaflow - o2 ????????

Thread Tools
 
Search this Thread
 
Old Jun 2, 2005 | 11:57 PM
  #1  
BeelowSS's Avatar
Thread Starter
Teching In
 
Joined: Apr 2005
Posts: 16
Likes: 0
Question ORY - Magnaflow - o2 ????????

I am looking to replace the stock y-pipe and SLP dual dual on my 2001 Firehawk. Ultimately, I want to buy QTP or Kooks LT's, but for now I just want to replace the y-pipe and catback due to financial reasons. If I have a guy fab a custom ORY-pipe and install Magnaflow, what is required relative to the o2 extensions and sims to function properly with the LS1 without an edit of any kind? Thanks guys.....
Reply
Old Jun 3, 2005 | 11:50 AM
  #2  
BeelowSS's Avatar
Thread Starter
Teching In
 
Joined: Apr 2005
Posts: 16
Likes: 0
Exclamation

ttt guys...anybody with this setup that can provide some advice would be appreciated. thanks a lot. this LS1 exhaust situation is driving me nuts. so many decisions to make. if i had unlimited funds it would be QTP LT's with the HVMC into a QTP ORY and GMMG...but that setup is over $2K as you know. looking for something in the short term to satisfy sound desires and some power increase but want to do it right as far as the o2 sims/extensions go. let me know what you think...
Reply
Old Jun 4, 2005 | 10:32 AM
  #3  
WILWAXU's Avatar
TECH Senior Member
20 Year Member
iTrader: (6)
 
Joined: Nov 2001
Posts: 14,378
Likes: 1
From: League City, TX
Default

IMO, Leave the y-pipe alone till you get headers. You will have to run a different y-pipe with them anyways.
Reply
Old Jun 4, 2005 | 11:18 AM
  #4  
Lithium's Avatar
SSU's Drunk Typing Whore
iTrader: (47)
 
Joined: Jan 2004
Posts: 4,608
Likes: 0
Default

I would wait as well to get the headers. Its just not worth it my opinion with out the headers.
Reply
Old Jun 4, 2005 | 12:39 PM
  #5  
Red99TA's Avatar
TECH Addict
20 Year Member
iTrader: (11)
 
Joined: Oct 2003
Posts: 2,442
Likes: 6
From: Topeka, KS
Default

With stock manifolds the horsepower gain of going to a custom ORY does not justify the cost. I think you would only see maybe 5 RWHP MAX compared to the stock y-pipe.
Reply
Old Jun 5, 2005 | 02:35 AM
  #6  
BeelowSS's Avatar
Thread Starter
Teching In
 
Joined: Apr 2005
Posts: 16
Likes: 0
Default

yea, i understand and thanks for the feedback. my only reason for doing so would be the sound....i'm real eager to get the car sounding right and this is obviously a provider in that department. either way i am getting the magnaflow this week and will just have to decide when the time comes what to do with the y-pipe. all i know is i want a loud, bitchin sound to have some more fun banging through the gears and cruisin town.
Reply
Old Jun 5, 2005 | 08:00 AM
  #7  
AKRA's Avatar
On The Tree
 
Joined: Nov 2003
Posts: 115
Likes: 0
From: Kalamazoo, MI, USA
Default

If you remove the cats you will also need to either buy O2 simulators or custom tune the PCM to turn off the applicable codes.

It will definitely be louder with out the cats.

Good luck,

Al
Reply




All times are GMT -5. The time now is 07:30 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