exhaust for large displacement?

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Mar 6, 2013 | 03:57 PM

02sslayer

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From: longview, wa

exhaust for large displacement?

im planning a LS7 441 CI motor for my SS soon. im wanting to know what you guys with large displacement motors are running for exhaust. i have a 3" GMMG catback now and im worried it wont be enough to support 441CI. im thinking of picking up the kooks true duals system. but i dont wana sacrifice ground clearance if i dont have to. well, let me know whats up.

thanks guys

Mar 6, 2013 | 10:52 PM

02sslayer

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From: longview, wa

anyone?

Mar 7, 2013 | 04:04 AM

LPE 403

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I assume you're going with a min of 1 7/8 header right? For my 460, went Kooks 2" and their TD...

Mar 7, 2013 | 06:12 AM

02sslayer

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From: longview, wa

indeed i am. im picking up kooks 1 7/8 headers. how is the fit with the 2" headers and the TD's on an fbody?

Mar 7, 2013 | 09:51 AM

Grr

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for that big of a motor 2" primary and kooks TDs are the only setup that wont be restrictive

Mar 7, 2013 | 10:13 AM

LongIsland63SS409

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If you upgrade would you be considering selling the GMMG exhaust?

Mike

Mar 7, 2013 | 11:42 AM

02sslayer

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From: longview, wa

Quote:

Originally Posted by LongIsland63SS409

If you upgrade would you be considering selling the GMMG exhaust?

Mike

absolutly

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Mar 7, 2013 | 05:11 PM

LPE 403

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Quote:

Originally Posted by 02sslayer

indeed i am. im picking up kooks 1 7/8 headers. how is the fit with the 2" headers and the TD's on an fbody?

The headers fit great.....have a UMI K which helped. The exhaust needed some tweaking. 2" headers have 3 1/2" collector and needed the inlet side of the exhaust system opened up to fit. Had separate issues with fitment of the TDs but it all worked out fine.

Mar 7, 2013 | 05:35 PM

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Blackpanther99

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You wont have any issues with Kooks True Dual system. Specially with a aftermarket K-Member

Mar 7, 2013 | 05:56 PM

#11

LPE 403

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Quote:

Originally Posted by Blackpanther99

You wont have any issues with Kooks True Dual system. Specially with a aftermarket K-Member

The exhaust has nothing to do with the type of K. Although the system meets the flow criteria, there are challenges in installing it. I had SEVERAL issues.....

Mar 7, 2013 | 07:23 PM

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ramairws6

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Quote:

Originally Posted by LPE 403

The exhaust has nothing to do with the type of K. Although the system meets the flow criteria, there are challenges in installing it. I had SEVERAL issues.....

Does it really though? Meet the flow criteria that is. I have since wondered if it would choke up my 13:8 to 1 445 or not. I have dual cutouts right now but the weight of all this under there is extreme believe it or not. So i was contemplating the Kooks TD and there doesn't seem to be many results out there

Mar 7, 2013 | 07:31 PM

#13

LPE 403

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Quote:

Originally Posted by ramairws6

Lol....unquantified statement on my part, but we can't get 4" duals under there sooooooo...... Hope to spin mine with and without the exhaust connected in the next month, so we'll see.

Mar 8, 2013 | 07:01 PM

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kevin kuether

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Kooks claims it will support 1200 horse power. Only system to have if you don't want dumps and run big cubes. If you have access to a lift it makes the install go pretty well,although s=after a few heat cycles it will need some readjustment.

Mar 9, 2013 | 07:34 PM

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02sslayer

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From: longview, wa

id like to learn more about a 4" exhaust. i wonder which will have more clearance dual 3 or single 4? i bet a 4" is throaty as a pornstar

Mar 9, 2013 | 07:42 PM

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keith102371

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I'm doing a 4" single, got the pipe and bends and muffler from summit for less than 200 bucks.

Mar 9, 2013 | 09:59 PM

#17

02sslayer

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Quote:

Originally Posted by keith102371

I'm doing a 4" single, got the pipe and bends and muffler from summit for less than 200 bucks.

let me know how you like it after u install it. let me know how ground clearance is. is your car lowered?

Mar 10, 2013 | 01:31 PM

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ramairws6

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From: Hicksville MN!

Quote:

Originally Posted by LPE 403

Lol....unquantified statement on my part, but we can't get 4" duals under there sooooooo...... Hope to spin mine with and without the exhaust connected in the next month, so we'll see.

Sounds good and i will be excited to here your resuslts as your power is pretty close to mine....

Mar 11, 2013 | 05:23 AM

#19

02sslayer

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From: longview, wa

Quote:

Originally Posted by LPE 403

thanks for all the info. i bet those 2" collectors are a tight fit. so i guess im picking up some products from kooks unless i decide a 4" single is the way to go......nah! 3" duals will do.

Mar 11, 2013 | 05:34 AM

#20

LPE 403

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Quote:

Originally Posted by 02sslayer

thanks for all the info. i bet those 2" collectors are a tight fit. so i guess im picking up some products from kooks unless i decide a 4" single is the way to go......nah! 3" duals will do.

No problem. Hope it helps. Headed back underneath for another tweak or two shortly.....hitting the floor somewhere (cat maybe) and have a little clearance issue at the front side of my rear end. Still worth it, IMO....sure is pretty