juanjuan07

Wish headers gives the more rwhp and torq for an 2001 firebird ws6 LS1 (mods: cam,maf,slp cold air intake, ported TB, and some time soon HP tuner)
Without thinking in money, just hp and torq.
I have 1 3/4 FLowtech LT headers, can i see a big difference if i chenge them for others, wich you recommend?
Also my Y pipe is Custom with CATS, but is 2.5'', should i change it for 3''?

BLACK2001SS

QTP ... KOOKS are good
this is kinda talked about everywhere everyday do some reserch.

WhosNXT

You will see the same gains with all longs tubes within a 5hp difference. A long tube is a long tube. You pay for quality of craftsmanship and quality of materials. So if you dont wanna pay big money for some SS lts, just get a set of pacesetter coated lts for like 400 bucks. Again there is a huge sticky at the top of this forum which goes more in depth about the difference between cheap lts and expensive lts. Check it out...

2_wacko

iTrader: (2)

Look more into the ones that fit better, I have Pacesetters they fit like a glove.

Pro52R

iTrader: (15)

Guys, he already has headers..he wants to know if he goes from his Flowtechs to others if he will notice a difference.

IMO..you should use that money for grammar/English classes...muhahahaha

B02SS

iTrader: (9)

I believe he lives in Puerto Rico.Give him a break.At least
he is trying.

WhosNXT

Ok, if you already have the flowtechs read my previous post. What I said still stands, all long tubes gain about the same.

ncnumber8

iTrader: (1)

I think you would get more bang for your buck if you change that 2.5" y-pipe to a 3" and forget about the headers unless you have a big cube motor like a 408 or bigger, then you might want to look at kooks 1 7/8.

1stz06

iTrader: (18)

I would go with Kooks on a SOM or Firebird, and LG Pro's on a C5. Let me tell you, when I switched from TPIS headers to LG Pro's on my C5, my peak gains were 15RWHP and 20RWTQ which made it definately worth the money and trouble. Now, what made it even better was I picked up 40+RWTQ from 2500-4500.

Investing in a GREAT set of headers is money well spent in my opinion!

Cheers,
J.R.

Zero4488

iTrader: (10)

SLP Equal Length Long Tubes.....IMO....

RareBreed0295

iTrader: (35)

I would have to say Kooks.

NHRAMAN

iTrader: (1)

they hang then lowest of ALLLL Headers though.

LS1crazy01

iTrader: (14)

I disagree that a "Header is a Header". If you put QTP's on a car and Dyno it then put SLP's on a car and Dyno it you will get way different results. I say go QTP. Its true that headers make only a couple HP more or less and same with torque but in the case of QTP's they carry more HP and Torque through the rpm range. Meaning they can carry 8-10 hp more through the rpms and peak 5 more. Im just going by the dyno sheets i've seen here and in person. There was a really good post here a while back about a guy that swithced from pacesetters to QTP's I'll try to find it.

The Alchemist

iTrader: (19)

I'd reccomend going with the QTP's with the high velocity merge collector. I have a set of their older style and will probably pick up a set of the high velocity merge style and swap the headers when I swap the kmember.

WS6RED2002TA

My results are in the sig with a link to my before and after dyno graph. The only difference is the SLP LT and ORY. If you look at the graphs you can see that I did gain 29 RWHP and 25 RWTQ. I really don't think that you can get very much better results than that. I love the quality of the SLP LT and that they don't spank my floorboard like QTP's do. Also I have never scraped my headers, because I don't off road in my TA either. Most people just need to learn how to drive.

bigsticksupra

iTrader: (3)

people say "a longtube is a longtube" to justify their purchase of a set cheap headers.

put a set of ARH or QTP headers on the car and i bet you will think differently.

flowtech=crap (why would you get these when the pacesetters are around the same price?) and i would not recommend SLP LT's for even a stock height car.

The Alchemist

iTrader: (19)

The SLP headers are fine if you are stock internal, but as soon as you add a cam or heads they become a huuuge restriction above 4000-4500 rpm. I remember seeing a guy at cartek back in 2001 swap from slp longtubes to macs and make more torque (3-5 ft/lbs) but carried that torque further and made almost 20 more rwhp. Imagine the difference in slp's to a true long tube with a high velocity merge collector like what you find on the QTP's and ARH headers.

Why do you think SLP has re-designed their headers. They know they don't work for heads and cammed motors. They may make a good amount of low end torque, but they die above 4000rpm.

INMY01TA

iTrader: (1)

SLP headers suck.

LS1crazy01

iTrader: (14)

Yeah they sound good but thats it.