Headers DYNO Results !! On stock Integra Type R engine.


Young_mckernan

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May 26, 2012
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whats everyone think of the 5zigen 4-2-1 manifold, what sort of gains does it have ?
 


SPek9

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whats everyone think of the 5zigen 4-2-1 manifold, what sort of gains does it have ?

I have the original ITR 98spec 4-1 manifold from your dc2 on my ek racecar and IMO the 98Spec 4-1 is better on the dc2 than on the civic because the civic is only a 1600cc and needs a 4-2-1 for better mid range. The ITR 4-1 will make more power overall compared to the 5-zigen


If you wanted I could swap you the 98Spec 4-1 for the 5-zigen?
 


Young_mckernan

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May 26, 2012
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I have the original ITR 98spec 4-1 manifold from your dc2 on my ek racecar and IMO the 98Spec 4-1 is better on the dc2 than on the civic because the civic is only a 1600cc and needs a 4-2-1 for better mid range. The ITR 4-1 will make more power overall compared to the 5-zigen


If you wanted I could swap you the 98Spec 4-1 for the 5-zigen?

Aw right, i always preferred the 98spec 4-1 manifold, ill have a think about it lad and let you know sure.
 



e5k1m0 Sam

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Apr 2, 2011
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I have the original ITR 98spec 4-1 manifold from your dc2 on my ek racecar and IMO the 98Spec 4-1 is better on the dc2 than on the civic because the civic is only a 1600cc and needs a 4-2-1 for better mid range. The ITR 4-1 will make more power overall compared to the 5-zigen


If you wanted I could swap you the 98Spec 4-1 for the 5-zigen?
You'd have to compare the dyno graphs for your exact setup because if the dc2 had for example 2 more hp right at the top of the power band but the 5zigen had 5 throughout the rest of the powerband then no doubt the 5zigen will be better matched for the majority of applications. Whats the point in having a tiny bit extra just as your running out of revs to use for a second or 2 when you can have more throughout the rest of your rev range, unless of course your just aiming for peak figures but again whats the point in that?
 



matthewdemin

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Jun 12, 2012
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what do you think about PLM toda 4-2-1 to fix it on my DC2 b18c engine and kikimoto n1 exhaust ????
 


Marcusie

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Apr 27, 2011
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76
My DC2 had a 98spec manifold
Changed to a Tegiwa 4-2-1 which s a copy of the Toda V2
Can feel the difference straight away :)
Sounds a bit deeper tone too
 



Marcusie

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Apr 27, 2011
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76
Is PLM a copy of the Toda?
Should be near enough the same
I use to have a kakimoto n1. Awesome exhaust!
 







Puggie

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Oct 25, 2012
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275
The 96 spec JDM header is a significant improvement over the UKDM on on the DC2,
 



Mark Wren

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May 26, 2016
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I think it's a UKdm manifold used as the "stock itr" as one of the comparison graphs there is one titled jdm itr 4-1.
 


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