Headers for LT4
Melting Slicks
Joined: May 2003
Posts: 3,490
Likes: 68
From: Hewitt NJ
This has been discussed many times before. Probably the "best" headers out there are the Exotic Muscle ones, but there are others as well, Stainless Works, TPIS, etc.
As for gains it depends on your other mods. On a stock LT4 I would say 10-15 RWHP w/ high flow cats. Look up member Perfusion to see some dyno numbers on these headers. I believe he picked up over 20 RWHP for these headers and a Corsa cat-back exhaust.
As for gains it depends on your other mods. On a stock LT4 I would say 10-15 RWHP w/ high flow cats. Look up member Perfusion to see some dyno numbers on these headers. I believe he picked up over 20 RWHP for these headers and a Corsa cat-back exhaust.
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Exotic Muscle long tubes fit well and as previously stated add some grunt to you power band. The best thing abou LT headers is the HP and TQ boost they provide will increase as you add mods to your engine.
For example lots of Cam and Head packages recommend long tubes.
Mike
For example lots of Cam and Head packages recommend long tubes.
Mike
Le Mans Master
Joined: Jul 1999
Posts: 8,683
Likes: 6
From: Phoenix AZ
Originally Posted by Admiral94
This has been discussed many times before. Probably the "best" headers out there are the Exotic Muscle ones, but there are others as well, Stainless Works, TPIS, etc.
As for gains it depends on your other mods. On a stock LT4 I would say 10-15 RWHP w/ high flow cats. Look up member Perfusion to see some dyno numbers on these headers. I believe he picked up over 20 RWHP for these headers and a Corsa cat-back exhaust.
As for gains it depends on your other mods. On a stock LT4 I would say 10-15 RWHP w/ high flow cats. Look up member Perfusion to see some dyno numbers on these headers. I believe he picked up over 20 RWHP for these headers and a Corsa cat-back exhaust.
Give Perfusion a PM, he's getting 320+ RWHP and RWTQ from a pretty stock LT4 with Exotic Muscle longtubes. Great bang for the buck! 
