How much HP is a shorty header/ H/X Pipe worth?

[EXTRPR50]

Searched the threads, how much power does it free up, and is there a shorty header dyno I could see on all the diff. brands?

 

[final5-0]

It depends on the mods.

The more mods you got the more gain you would get.

There won't be a lot of gain difference between the various brands of shortys.

Later
Grady

 

[Pokageek]

While we're at it, how much more to go long tube? (Couldn't find that on search either).

 

[mo_dingo]

regardless of the hp gains, it's worth it every time you start your car up.

DO IT!!!!!
Scott

 

[JJ95GTID]

I know this for certain, headers by themselves aint worth squat. I love my BBK EL's but they did nothing to speed up the car. Of course they didn't slow it down at all either. And, they do sound nice. Replacing the factory H-pipe will free up the flow the most followed by the headers and then catback system IMHO.