Alright i want some more pep in my Integra Ls . i was thinking header. Now i searched around for a while and cant really come up with anything i wanted to know if someoen could answer these questions i'd be greatful.

1) Hp gains through the power band ? how much could i get ?
2) Some good headers to get i here DC sports 4-2-1 is good ?
3) How much do header cost .. and how much to have a shop install cause i'm a n00b
4) are they even worth it .. will i feel the difference

 

with the mods you have listed, a header would do about nothing... it's for your exhaust flow, in order to see gains, is with intake, header, exhaust, high flow cat or test pipe... each peice compliments the other... rule of thumb. 4-2-1 shows gains in the low to mid range, while the 4-1 shows more gains up top... integras as we all know have a shitty top end, especially the ls due to the non vtec... do a search next time, this topic has been beatin to death.... whatever happened to the idea of putting all the common questions together for n00b's?

 

He pretty much answered it good enough. I'd reccommend a DC stainless 4-2-1 for that good midrange. Make sure you decide your plans now so you dont end up buying a header and cams and end up boosting.

 

I've got a DC sports 4-1 on my LS and it makes a little extra power towards top end. Its nothing huge, but its noticeable. Even leaking.

 

So then there is no point to getting headers for my car ? if i want to see say ... 15's on my ls what would i need ? and i dont wanna spend lump sums cause i'm still in college to many bills to pay

 

I'm going to be installing a DC 4-2-1 CC header on my ls this weekend. I'll let you know how it goes.

 

You will see gains, but not the full gains if you had a catback and highflow cat.
The LS has a pretty strong midrange, if you want to stick to that then yes a good 4-2-1 is your best bet. I would pick Comptech's 4-2-1 over the DC unless you are planning on supercharging at some poine (the DC has short primaries which is good for SC).

Comptechs is the only 4-2-1 header I know of that is stepped to prevent reverse exhaust flow, and its barely more cost wise than the DC.

 

15's???? i/h/e/c should easily get you into the 15's providing you're a descent driver. they supposedly run a 16.0 stock, but that's arguable. and besides, once you get 15's, you'll want 14's

 

anybody have apexi headers...my 4-1 is dented...need a replacement...any suggestions..

 

Get a DC 4-2-1 ceramic. You won't regret it.