SLP Performance Full Length Headers. - Pontiac GTO Forum
User Tag List

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 03-06-2013, 08:09 PM Thread Starter
Join Date: Mar 2010
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
SLP Performance Full Length Headers.

Hey whats up all?

I have a 2005 6.0. I am thinking about get the SLP Header package and Im trying to get some good info about it.

What kind of performance gain do you get? Where is the best place to get it? Does it sound different from the stock headers? How hard are they to keep looking clean. All the info you can give me I appreciate.

302cali is offline  
Sponsored Links
post #2 of 2 (permalink) Old 03-07-2013, 01:10 PM
Former Moderator
svede1212's Avatar
Join Date: Oct 2005
Location: Grand Rapids, Michigan
Posts: 4,081
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 25 Post(s)
Package? I'm assuming you mean LTs AND the midpides? FWIW don't use the flange gaskets they give you but reuse the old MLS ones. With a tune you'll pick up ~25 RWHP. Maryland Speed is a good vendor. They sound substantially different than the stock manifolds as stock are cast iron and mute sound quite a bit. You gain an increase is volume and engine noise with LTs. I have SLP LTs mainly because at the time (2006) they were cheap and already came with coating which is very important. Coating keeps the engine bay a little cooler and keeps exhaust velocity up. There are other better headers like Stainless Works, Kooks or Dynatech. All of those should be coated before use but will make a few more ponies. Dynatechs are also easier to install. You'll find putting the driver's side header in a royal PITA. As far as "clean" you're pumping gases well over 1,000 degrees through them so they all discolor slightly but after 7 years mine still look good.

2004 Blk/Rd M6
6.3 litre LS1

Built and tuned by svede
svede1212 is offline  
Sponsored Links

  Pontiac GTO Forum > The 2004-2006 GTO > Intake and Exhaust Discussions

Quick Reply

Register Now

In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
What Headers..... and Possible full exhaust? mr.gto Intake and Exhaust Discussions 12 12-30-2008 01:48 PM
Clutch rod length Rukee 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 6 12-04-2007 12:12 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome