Originally posted by Azhrei:
I know for a fact that jacobs system will boost hp by 10% or better , i had one system on my 94 nissan Altima with the ka24de motor i had a short ram intake and a cat back system and some other things like under drive pully, i was putting down 145fwhp when i got the jacobs system i was putting down 159-160fwhp
that was a 10% increase, so it realy helped.
 
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