- May 26, 2006
- 775
- 2
- 1,518
Y-pipe is simple. Use exactly the same diameter piping as stock. If your high end is like "tarek lembu", then something else is wrong. It's not the Y-Pipe. Y-pipe loses LOW end, not high end power.
You need to check a few things.
a) Are you getting enough air-flow? - air filter, air filter cold air intake is actually quite restrictive.
b) Are you getting enough fuel? Your fuel pump ok? Fuel filter? AFM running properly?
c) Is your centre muffler in good condition...or is it stuck or kosong already?
d) Is your throttle body and intake manifold clean or clogged?
e) How long has it been since you have had your IACV valve cleaned?
If all of the above is ok...then we will have to get to the more complicated stuff like...
i) O2 sensors...are they working properly? Did your exhaust guy accidentally kill them when he welded in the Y-pipe?
ii) Knock sensor?
The above can be diagnosed (for 70% of the problems) from the ECU.
You need to check a few things.
a) Are you getting enough air-flow? - air filter, air filter cold air intake is actually quite restrictive.
b) Are you getting enough fuel? Your fuel pump ok? Fuel filter? AFM running properly?
c) Is your centre muffler in good condition...or is it stuck or kosong already?
d) Is your throttle body and intake manifold clean or clogged?
e) How long has it been since you have had your IACV valve cleaned?
If all of the above is ok...then we will have to get to the more complicated stuff like...
i) O2 sensors...are they working properly? Did your exhaust guy accidentally kill them when he welded in the Y-pipe?
ii) Knock sensor?
The above can be diagnosed (for 70% of the problems) from the ECU.
