interested to know what sort of gains (kw) am i looking at if im to get xforce headers but keep the standard cat + cat back.
or would i be better off changing the whole exhaust system to make more use of the headers.
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interested to know what sort of gains (kw) am i looking at if im to get xforce headers but keep the standard cat + cat back.
or would i be better off changing the whole exhaust system to make more use of the headers.
Left = JDM ITRQuote:
Originally Posted by z3lda
Middle = DTR (now Six Sigma Racing)
Right = Hytech
Regards Dyno Dave
Anyone have toda b16b headers or Spoon 4-2-1 headers? With what gains?
i have the spoon headers..Quote:
Originally Posted by 0098
for just the problem of clearance alone.. i would try to steer clear from these headers.. as they are about 1 inch lower than the stock ones..
but power gains .. i think it is quite good..
cant give u dyno gains ..
but throttle response is greatly bettered..
I still think the JDM 4-1 are very good all round performer.
Also one of the few with clearance problems for a 4-1
Yes they are a very good header and will service most people's B-series combinations very well.Quote:
Originally Posted by Limbo
Regards Dyno Dave
i got a stupid question ... wats the different between 4-1 and 4-2-1 header???
i mean the power gain ... is 4-2-1 have better low rpm torque or 4-1 have better high rpm flow ... :confused:
from what i gather 4-1 is better for top end power
while 4-2-1 better midrange
can somebody vouch for this ??
"from what i gather 4-1 is better for top end power
while 4-2-1 better midrange"
OK from what I've been told by ............ :pQuote:
Originally Posted by EG5[KRT]
4-2-1 are almost always the best chose :)
4-2-1 good power though the rev range (nice an even)
4-1 might be lacking bottom end but better top end (but not my that much that its worth losing you bottom revs lol
Dave will know for sure??????? :thumbsup: :thumbsup:
Plus just how much driving do you do at top end power? lol
Not all engines are equal and have different needs and different header do different thing to em
The noob
LukeZen
I have Xforce 4-1 header on my ITR and I am very happy, nice sound (simular to WRX) and good power gain mid to top range.
It's vtec so I like the idea of going to the red line that is why I like it, and sound of vtec after 6000rpm is sick.
I when the Xforce 4-2-1 header on my SOHC VTec and I'm happy too...Quote:
Originally Posted by Malenic1981
Though I got em the day after I got my car so I dont know what she's like without em heheh
Sounds nice :thumbsup: