I have my own headers and uppipe ported and running 420bhp on billet 20g now going mdx321t should i buy harveys trick uppipe car is 05sti

 

for changing from ported to harvey probably a slight increase in spool but job does take a bit of fiddling unless your up for it

 

Garage would be changing it mate when they fit turbo and avcr

 

Ive been thinking about doing the opposite, I have the trick up pipe (ported heeaders) with 321t (billet wheel), my car doesnt start spooling till 3.5k rpm, but shoots off at 4k.

Not sure if thats normal as I thought these turbos spooled quicker, I was thinking of trying the ported up pipe.

Im having the car mapped again in the first week of march, this time with an induction kit, will see if that helps.

 

Im at andy f on 19th march thats why im asking to see if its worth it

 

I'm seeing him on the 7th, I will ask him and report back on this thread.

Can I ask when does your car start spooling ?

 

Cheers mate and mine is still on 20g get 1bar at 3300rpm

 

you have a pm

 

thanks for the heads up mate