hi guys.

i got a JDM 1999 Civic Sedan. Non VTEC. Got below in there

CAI with K&N
4-2-1 header
High flow resonator
Magnaflow exhaust
Pivot voltage stabilizer

And i love the pickup etc

its just i got to travel long distance daily and i need more fuel efficency whilst keeping the pickup the way it is.

any advice or sugestions

 

Get it tuned BUT specifically tell your tuner you want it tuned for fuel economy.

 

i did that too mate. cleaned the throtle and the injectors. did a scaned tuneup

what else can i do...or is that about it

 

You need to take it to a shop with a dyno so they can measure the power output against the fueling and tune the ignition timing properly. You can't do this yourself or on the streets.