Kooks 1 3/4 or 1 7/8

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Apr 21, 2008 | 08:55 PM

boosted99ss

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From: Jonesville

Kooks 1 3/4 or 1 7/8

I have a stock ls1 with a D1SC and I am thinking about a set of kooks headers. I dont want to kill my low end torque. Will the 1 7/8 headers kill me on bottom or will they be the best all around?

Apr 21, 2008 | 09:04 PM

1989GTA

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In your case I would get the 1 3/4" headers.

Apr 21, 2008 | 09:06 PM

santiago

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From: norcal

1 7/8 will not nurt

Apr 21, 2008 | 10:02 PM

SOMbitch

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Since You are F/I there is no downside to 1 7/8". The new TSP 2" header would be a good choice too if the fitment reviews come out good.

Apr 21, 2008 | 10:47 PM

mchdg86

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From: Tulsa OK

Quote:

Originally Posted by SOMbitch

Since You are F/I there is no downside to 1 7/8". The new TSP 2" header would be a good choice too if the fitment reviews come out good.

I thought the ones TSP are coming out with were 1 7/8".

Apr 21, 2008 | 11:14 PM

BuBbABFP

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From: Salinas, Ca

Quote:

Originally Posted by mchdg86

I thought the ones TSP are coming out with were 1 7/8".

Yes they are.

Apr 21, 2008 | 11:16 PM

Hawk108

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From: Edgewater, MD

Since you have a procharger I would DEFINITELY get the 1 7/8s

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Apr 22, 2008 | 07:38 PM

venom ws7

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From: EARTH

You have a PROCHARGER And you're worried about the low end TQ
LOL

Man get 1 7/8 headers for sure.

Apr 22, 2008 | 07:40 PM

#10

venom ws7

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From: EARTH

Yes Cermic coated this Z28 Have Kooks 1 7/8 and D1SC with 346ci

http://www.youtube.com/watch?v=wT9Lnsqxkbo

Apr 22, 2008 | 09:28 PM

#11

boosted99ss

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From: Jonesville

I went to byunspeed.com and they have so many choices it is confusing me. I think I need 1 7/8 X 3 is this correct? Also I want to get rid of egr tube so can I get the emissions headers?

Apr 23, 2008 | 11:30 AM

#12

SOMbitch

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Quote:

Originally Posted by boosted99ss

I went to byunspeed.com and they have so many choices it is confusing me. I think I need 1 7/8 X 3 is this correct? Also I want to get rid of egr tube so can I get the emissions headers?

If you are ditching EGR get the non-emmision (race style) header.
Yes the new TSP header is 2". There is a thread w/ pics around somewhere.

Apr 23, 2008 | 05:13 PM

#13

RoDan

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From: Memphis, TN

sorry, the TSP headers are 1 7/8" https://ls1tech.com/forums/generation-iii-internal-engine/908212-introducing-all-new-1-7-8-tsp-long-tubes.html

Apr 23, 2008 | 09:14 PM

#14

SOMbitch

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Quote:

Originally Posted by RoDan

sorry, the TSP headers are 1 7/8" https://ls1tech.com/forums/showthread.php?t=908212

My bad. Result of sleep deprivation

Apr 24, 2008 | 05:35 AM

#15

JEB99TA

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From: Florida

Over ported 1 3/4" MAC mid's with ORY, I picked up 25/17 at the wheels with 1 7/8" American Racing headers with CATs ... my motor is a 347 (forged). I'd def go with 1 7/8" with FI.

Apr 24, 2008 | 10:08 AM

#16

Patrick G

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From: Victoria, TX

Moved from internal section.

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