Help for my ek3 modifications

[d15z6ek3]

I have a 2000 ek3 1.5i vtec-e d15z6 civic naturally aspirated, and i want to change intake and exhaust manifolds and high flow fuel rails, but all im thinking is that i would need a repro to adapt the settings to the new parts. My question is is it worth? Because i think i would have to change my ecu to OBD1 and purchase a Hondata3000. Would i notice the changes if i dont do the repro?

 

[mian8790]

If you upgrade the intake, exhaust manifolds, and fuel rail, but don’t tune the ECU, you might not get the full performance benefit. The stock ECU won’t adjust properly for the new parts, so you could end up with poor fuel economy or less power.

Switching to an OBD1 ECU and using Hondata S300 would let you tune the car to fully match the new parts, giving you noticeable gains.

So, if you want the best results, it’s worth doing the tuning. If not, you’ll still see some improvement, but not as much.

 

[d15z6ek3]

If you upgrade the intake, exhaust manifolds, and fuel rail, but don’t tune the ECU, you might not get the full performance benefit. The stock ECU won’t adjust properly for the new parts, so you could end up with poor fuel economy or less power.

Switching to an OBD1 ECU and using Hondata S300 would let you tune the car to fully match the new parts, giving you noticeable gains.

So, if you want the best results, it’s worth doing the tuning. If not, you’ll still see some improvement, but not as much.

Thank you bro, i will think about this