How Much Rwhp You Get From Kooks Headers

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Jul 23, 2008 | 05:26 PM

Blk_Ws6

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From: In my Science Lab .

How Much Rwhp You Get From Kooks Headers

I never knew what the rwph was from the average good set of headers whats the rwph?

Jul 23, 2008 | 11:01 PM

BigE_LS1

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I gaind 28 hp and 31lbs with kooks headers , y pipe with cats and a tune.

Jul 24, 2008 | 12:38 AM

94'BLKBRD

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^^^^ Thats really good for a y pipe and cats

Jul 24, 2008 | 01:57 AM

Dex

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Quote:

Originally Posted by BigE_LS1

I gaind 28 hp and 31lbs with kooks headers , y pipe with cats and a tune.

That has a lot to do with it
i also doubt this was back to back more like months or years apart

Jul 24, 2008 | 02:23 AM

94'BLKBRD

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Quote:

Originally Posted by Dex

That has a lot to do with it
i also doubt this was back to back more like months or years apart

I know the numbers reflect on the tune, still good #'s through a catted y.

Jul 24, 2008 | 06:10 AM

DonnieDarko

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I gained 31 hp & 29 ft lbs. from the kooks lts, catted y & a tune. The dyno pulls were done 1 day apart. The power gains were unbelievable. Like a different car.

Jul 24, 2008 | 06:55 AM

Blk_Ws6

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From: In my Science Lab .

Quote:

Originally Posted by DonnieDarko

I gained 31 hp & 29 ft lbs. from the kooks lts, catted y & a tune. The dyno pulls were done 1 day apart. The power gains were unbelievable. Like a different car.

So I see 31 over 29 ok thats with the tune I wanna know about headers alone what will I gain?

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Jul 24, 2008 | 07:47 AM

TheSilverOne

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majority of the people here won't have dyno numbers from just headers.

Jul 24, 2008 | 10:10 AM

#10

Dex

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Quote:

Originally Posted by Blk_Ws6

So I see 31 over 29 ok thats with the tune I wanna know about headers alone what will I gain?

I prefer track times its hard to dyno race

Jul 24, 2008 | 10:15 AM

#11

Tainted

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all lnog tubes get about the same. some are jsut a few more some are jsut a few less all within like 5hp of each other

Jul 24, 2008 | 11:27 AM

#12

Redlinez

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I will add that I have found gains with a retune after just about every single change to my car. Of course, I have to give credit to the tuner (Jeff @ Mayhem) for spending the time and making it happen. I had to retune after going to a custom catted Y, lost major power but gained quite a bit of it back with a tune. On my last 99 LS1, I picked up 3X/28 with Jethot longtubes.

Jul 24, 2008 | 01:16 PM

#13

Blk_Ws6

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From: In my Science Lab .

Quote:

Originally Posted by Dex

I prefer track times its hard to dyno race

Ok I let's say I run 13.3 @106 what will headers give me from here?

Jul 24, 2008 | 04:44 PM

#14

chrs1313

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if the tune is dead nuts on before then the gain after with a tune is only around 15rwhp...headers are over rated...do other bolt ons first...

Jul 24, 2008 | 07:30 PM

#15

ZMONSTER!

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wow I never ever thought I would see someone say headers are overrated! To most people headers are the first mod made, after a lid.
OP, they all pretty much make around 20 rwhp from what I have seen. There are many factors that can effect that number though.

Jul 24, 2008 | 10:22 PM

#16

Blk_Ws6

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From: In my Science Lab .

Quote:

Originally Posted by chrs1313

if the tune is dead nuts on before then the gain after with a tune is only around 15rwhp...headers are over rated...do other bolt ons first...

Thats what I wanna do all bolt ons just in case I might not want headers I hate the loud noise .

Jul 24, 2008 | 10:36 PM

#17

BigE_LS1

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It was done on the same day . I gaind 18hp and 20lbs from just the kooks the rest was from the tune. Was doen at gforce back in march.

Jul 24, 2008 | 10:41 PM

#18

Blk_Ws6

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From: In my Science Lab .

Quote:

Originally Posted by BigE_LS1

It was done on the same day . I gaind 18hp and 20lbs from just the kooks the rest was from the tune. Was doen at gforce back in march.

So by adding a ls6 cam I would pick up more then headers right?

Jul 24, 2008 | 10:48 PM

#19

BigE_LS1

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From what i have seen a 98-00 fbody will gain about 15-20 hp and a 01-02 will gain about 20-25hp."that what i have seen with my own eyes" by going with the ls6 cam.

Jul 25, 2008 | 04:53 AM

#20

chrs1313

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Quote:

Originally Posted by ZMONSTER!

i ran 11.72 at 115mph when i still had stock cats, manifolds, and y pipe going through a cutout...after my qtps the times dropped to 11.55 at 116mph...same DA conditions...so again around 15rwhp at max...unless of course your tune is off or you decide to run in better conditions (DA) and not record it...plus kooks are around $800...not the best mod considering you can get about 20-25 rwhp from a ram air setup for around $60...

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