jus replace center two bullet and back muffler s-flow.tuning needed?

[M!NG]

jus replace center two bullet and back muffler s-flow.tuning needed?
cuz after changing the Exhaust system,i feel tat the performance is weak den before...the performance is not very satisfyin...
is jus lik the whole car is very heavy...isnt tuning to reset the setting bac?pls advice...
wil be appreciate...

[jackx]

Bro, where you change the exhaust system ? Wai Heng? Cause Wai Heng products are really crap china made products. Actually no need tuning, the place where I did my exhaust (Everco) told me toyota's ECU will adjust after some time. 

[M!NG]

Oo...isnt if the timing of the low den wil affect the air intake less n makes our car under power?

[trxx7989]

mind to tell more about the centre bullet & S-flow spec?

let me guess, centre bullet straight flow 2" dia. the S-flow have 3nos pipe in it, so called more sporty type, rite??

[jackx]

Oo...isnt if the timing of the low den wil affect the air intake less n makes our car under power?

I wanted to install emanage @ after12 in sunway, they told don't bother wasting $$, minor mod such as exhaust and intake no need to tune. 

[blacky_altis]

Oo...isnt if the timing of the low den wil affect the air intake less n makes our car under power?

I wanted to install emanage @ after12 in sunway, they told don't bother wasting $$, minor mod such as exhaust and intake no need to tune. 

who say so wor... i got my ex-car with intake, exhaust and fuel pump done only and put CAMCON and dyno tune, the car performed like a 1.8L stock altis.

[jackx]

Oo...isnt if the timing of the low den wil affect the air intake less n makes our car under power?

I wanted to install emanage @ after12 in sunway, they told don't bother wasting $$, minor mod such as exhaust and intake no need to tune. 

who say so wor... i got my ex-car with intake, exhaust and fuel pump done only and put CAMCON and dyno tune, the car performed like a 1.8L stock altis.

What fuel pump mod you did?

[blacky_altis]

Oo...isnt if the timing of the low den wil affect the air intake less n makes our car under power?

I wanted to install emanage @ after12 in sunway, they told don't bother wasting $$, minor mod such as exhaust and intake no need to tune. 

who say so wor... i got my ex-car with intake, exhaust and fuel pump done only and put CAMCON and dyno tune, the car performed like a 1.8L stock altis.

What fuel pump mod you did?

walbro 255LPH. Tried to do the same to my G10 but need modify a lot of things due to the shape is different. For Vios, just need to modify the connector

[jackx]

Oo...isnt if the timing of the low den wil affect the air intake less n makes our car under power?

I wanted to install emanage @ after12 in sunway, they told don't bother wasting $$, minor mod such as exhaust and intake no need to tune. 

who say so wor... i got my ex-car with intake, exhaust and fuel pump done only and put CAMCON and dyno tune, the car performed like a 1.8L stock altis.

What fuel pump mod you did?

walbro 255LPH. Tried to do the same to my G10 but need modify a lot of things due to the shape is different. For Vios, just need to modify the connector

Stock fuel pump not enough for just slight intake modification? Btw Blacky, do you think there is any gains if install hotbits extractor? everco told me no use, no power gain. Haiz everyone seem to be against Altis performance modification lol.

[blacky_altis]

Oo...isnt if the timing of the low den wil affect the air intake less n makes our car under power?

I wanted to install emanage @ after12 in sunway, they told don't bother wasting $$, minor mod such as exhaust and intake no need to tune. 

who say so wor... i got my ex-car with intake, exhaust and fuel pump done only and put CAMCON and dyno tune, the car performed like a 1.8L stock altis.

What fuel pump mod you did?

walbro 255LPH. Tried to do the same to my G10 but need modify a lot of things due to the shape is different. For Vios, just need to modify the connector

Stock fuel pump not enough for just slight intake modification? Btw Blacky, do you think there is any gains if install hotbits extractor? everco told me no use, no power gain. Haiz everyone seem to be against Altis performance modification lol.

everyone was against the fuel pump mod too but dyno sheet and high RPM more shiok. Just go for it... is all trial and error. M<alaysian mindset is ALTIS is UNCLE CAR... dun need mod

[jackx]

haha ok i'll proceed with the walbros 255lph fuel pump mod, followed by hotbits 4-2-1 extractor, and finally install my emanage and see. 

modding is fun!

[blacky_altis]

haha ok i'll proceed with the walbros 255lph fuel pump mod, followed by hotbits 4-2-1 extractor, and finally install my emanage and see. 

modding is fun!

u G10 or G9?

[jackx]

haha ok i'll proceed with the walbros 255lph fuel pump mod, followed by hotbits 4-2-1 extractor, and finally install my emanage and see. 

modding is fun!

u G10 or G9?

I'm using G9 bro...

[adnone0]

so how is result with hot bits 421 extractor? got pictures? i wanna compare stock and hots bits design.

[jackx]

so how is result with hot bits 421 extractor? got pictures? i wanna compare stock and hots bits design.

Many people comment that its overpriced for its quality... but change stock extractor to aftermarket one extractor will yield about 3-4 WHP (According to one pro sifu who mod rally cars).

I'm thinking about changing engine, so don't wanna waste RM450-500 on extractor as after change engine still have to redo the exhaust system. 

Anyone using straight flow on auto transmission? How's the sound and performance level? thx!