Would it be worth it?? Exhaust swap
11-02-2023 | 07:09 PM
#11
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Joined: Sep 2014
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From: Portland, OR
Agreed! When my CMI's fail (and they will if you believe the interwebz) that's what's going on the boat no question since I'll never have to worry about them again. My big tube CMI's sure are pretty but reliability and peace of mind go a long way... Besides that, I can do both sets of SM's for the price or less of one set of CMI's.
11-03-2023 | 04:11 AM
#14
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Joined: Jul 2017
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From: Sodus MI
I don't see any headers in that pic hahahaha
Let's just say for the future...If I were to switch from my 540 to a 572 or 588 whatever and up boost some more....would they be a worthwhile upgrade then?
I guess what I'm asking is at what point if any would they make a justifiable upgrade over my current e-tops? Or would it only make sense if I had a huge NA mill?
Let's just say for the future...If I were to switch from my 540 to a 572 or 588 whatever and up boost some more....would they be a worthwhile upgrade then?
I guess what I'm asking is at what point if any would they make a justifiable upgrade over my current e-tops? Or would it only make sense if I had a huge NA mill?
11-03-2023 | 01:11 PM
#18
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From: Merritt Island, FL
11-03-2023 | 01:49 PM
#19
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From: Pa
According to CMI's website....1 7/8" primaries....estimated around 950-1000 hp. It dynoed 993 previously but have changed tunes, currently changing EFI setup, and upping boost 2 lbs.
Like I said I have no issues with the current headers at all just was seeing if I could expect a difference by switching? Seems like so far from the posts they won't make much of a difference if any?
Always looking for any kind of upgrade and read reports of HP gains on NA builds by switching but wasn't sure on a SC application?
Thanks for all the replies so far!!
Also that OL is ridiculously bada$$ by the way!! hahaha
Like I said I have no issues with the current headers at all just was seeing if I could expect a difference by switching? Seems like so far from the posts they won't make much of a difference if any?
Always looking for any kind of upgrade and read reports of HP gains on NA builds by switching but wasn't sure on a SC application?
Thanks for all the replies so far!!
Also that OL is ridiculously bada$$ by the way!! hahaha
11-03-2023 | 05:56 PM
#20
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Joined: Jun 2009
Posts: 9,961
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From: Chicago
I had em make me a set out of carbon fiber .
With these there`s no different length runners, I would think headers would scavange and flow better . I do like no headeraches and just the ease of install is super nice but my headers were leaking so I had to make a change ..
With these there`s no different length runners, I would think headers would scavange and flow better . I do like no headeraches and just the ease of install is super nice but my headers were leaking so I had to make a change ..
