Ok, Lookin to maybe settle some arguments...

Anyone have Dyno #'s for Mid length headers?

Most of us have them for LT's... Looking for a direct comparison...

 

Yes Good post... I want to know what peple think about the MID lenth headers? I has seen the Mac units are very reasonable for the money to get headers with y-pipe


anybody have any numbers?

 

only real numbers i've ever seen were posted from some magazine article a few years ago.

they showed that mids were nearly identical to LTs in every thing but the very top of the power band.

 

I posted a thread about it on LS1tech.com. Maybe someone there has dyno #'s...I will post them if I get any. I also, appreciate any other imput on this matter.

 

IMO there is no point in buying mid length headers. They are not emission friendly and they are not quite as good as Long Tubes. On a bolt-on car they will give about the same gains but once you crack open the motor for heads/cam work the LT's run away with the gains over mids.

Even if you never plan to go beyond bolt-ons the Pacesetter coated headers with ORY (or TSP catted Y) is a great bargain!

Just my .02

 

The point was... they used to be the only header available, and as a result of that there are still plenty of sets in circulation.

The theory is they should make the SAME rwhp as long tubes, but will sacrifice some midrange/low end torque.

Ben T.

 

I have LT's but I'm doin public research, I guess.

Mids, not emmision friendly?!I think they'd be a bit more friendly than long tubes. If the cats are located closer upstream, they warm faster. And can be more efficient. That's why the stock cats are up high.

 

I understand that but there are also plenty of Long tubes in circulation now so IMO it makes more sense to buy Pacesetters or maybe even the new Ebay headers. For the money they are hard to beat.

 

Actually Mids and Long tubes are equally illegal. There is a federal law that prohibits the relocating of Cats. When you use Mid length or LT headers it pushes the cats (assuming you're even using HF cats) further back making both of them illegal. So only shorties can be 100% legal. Problem is they offer minimal gains (5 rwhp compared to 20-25 rwhp you can gain from Mids or LT's).

 

If My SLP's bang everywhere REAL bad then I'd be willing to try out those ebay headers..