Toonny said:
but after changed the extractor, pickup improved wor.
haiks.. change bek nid $$$ la... too poor now..
hi there, this was my foreman opinion.
if you only change the extractor, pipe and muffler nothing is improve. only noise sound increase. unless you change the intake manifold, mushroom intake, throttle body.
this is the simple playing to improve the perfomance, but only inprove not more then 10%, also burning fuel is increasing.
the fact is examples, if you eat 1kg foods, will you voidance more then 2kg ?
remember once you modified the intake, your petrol will used more then usual 10% -> 20%.
if you have money to play, then i have nothing to say.
if you want perfomance, and save money, care your engine, change your oil & filters every 5,000KM, you can also change the spark plugs every 15,000KM (normal one) if perfomance plugs one they will write their recommand on the product.
for tuning, actually nothing to tune for wira stock engine, only timing & throttle adj. because wira ECU was programe cannot be adj. the device that plug into the can is only find out what problem the car have.
that what i experiance.