i've an HYDRA ECU fully mapped with anti lag, twin fuel map, with a Kakimoto Full Mega N1 3" s/s exhaust but still have the original downpipe, peak pressure boost is +-1.45 bar with continious 1.2 boost pressure. i've to change it now and i'm going to fit a sport cat downpipe. My question is, does i've to remap the engine again or not as i know that changing the downpipe would increase torque and power. But i don't know if it will affect boost pressure.
Please let me know our experience with that.

Thanks

Daniel

 

nobody can answer my question????
come on i'm sure i'm the only one who faced this problem.
tell me what please.

Daniel

 

it is not 100% nessorcy but if you want a better car for it get the remap.

 

question doesn't seem clear..

you are changing from a standard downpipe to a sports catted one?

yes it needs a remap..

Simon

 

no so if it has been mapped for current set up on a hydra.. there is no room for "it should be okay" etc..

Simon

 

hi Simon,

yes indeed the hydra ecu have been mapped but with standard catted downpipe, and now and upgrading to sport cat downpipe.
so finally do i've to remap it when fitted?

cheers

Daniel

 

Yes

 

i'm gutted , the fitting and mapping have been done by Tracktive so it would be impossible a the moment for me to have it remapped because i'm living in Belgium and can't go oversea now.
what can happen if i don't do the remap when sport cat downpipe fitted?

 

Is there no-one local that can map it?

 

sadly no mate, i do not trust any tuner here in Belgium so that's why i go to uk for tune the car...it cost me a lot of money it's worth...simply now i'm facing this problem...

 

just dont do the decat until you can get over to the uk - then no problem

 

to explain he reason y you cant fit it is because it will push exhasut temps dangerously high, i wanted to fit one for a track day but was a no goer.