exhaust

[laneza]

hi there did anyone has done conversion on the exhaust piping ? is there any problem we remove our factory catalic converter? others than the bad smell produce what is other effect? to the engine especially..thanks

 

[fabianyee]

try search for 'catalytic converter', there are some past discussions on this.....

 

[kevster30]

hi there did anyone has done conversion on the exhaust piping ? is there any problem we remove our factory catalic converter? others than the bad smell produce what is other effect? to the engine especially..

thanks

Do not remove your catalytic converter....your car will go nuts!

Google: closed loop EFI systems for further clarification

 

[laneza]

hee thanks for your advice...how bout the silencer? with CAT but straight pipe without silencer..any problem can harm my engine?

 

[kevster30]

All bmw xhaust systems have been designed, engineered and bench-tested to give your engine the best balance of power, torque and economy.

Aftermarket xhaust only work if you have done internal modifications(pistons, cams, etc) to your engine. Standard engines will recieve NO benefits especially if you are running on automatic transmission. You will experience loss of power and increase in fuel consumption.

 

[elixir]

hee thanks for your advice...how bout the silencer? with CAT but straight pipe without silencer..any problem can harm my engine?

all you get is just noise bro.
It may not harm your engine but not sure about your ear drum....

 

[laneza]

All bmw xhaust systems have been designed, engineered and bench-tested to give your engine the best balance of power, torque and economy.

Aftermarket xhaust only work if you have done internal modifications(pistons, cams, etc) to your engine. Standard engines will recieve NO benefits especially if you are running on automatic transmission. You will experience loss of power and increase in fuel consumption.

thanks bro..my car is manual transmission...i have done some modification on the pully, Carbon air intake, and also sprint booster..coming soon is SAFC continental. looking for exhaust modification..maybe i can change my silencer with M3 / SMG HAMMAN or AC Schnitzer silencer? can fix ar?

 

[ICEMAN 68]

for manual without the cat ...ummm so far no problem ...i've done that on my 36 ...

silencer works ...better visit jaffar motorworks ...they seems to be the best when comes to silencer mods ...

 

[kevster30]

thanks bro..my car is manual transmission...i have done some modification on the pully, Carbon air intake, and also sprint booster..coming soon is SAFC continental. looking for exhaust modification..maybe i can change my silencer with M3 / SMG HAMMAN or AC Schnitzer silencer? can fix ar?

That's a good way to go but try not to remove the catalytic converter.:top: AC xhaust bunyi manyak sedap woooo!

 

[jc@]

how bout SMG?

 

[laneza]

wuhh

emm would like to try soon...piping with CAT remain ON but change silencer to ac schnitzer...with CAI intake..sounds good to me

 

[bmwturin]

thats sounds good...
yupp...i took out Cat on my manual....
pls let me know how much is the AC backbox...looking for it too...
its not cheap i guess...huhu

 

[laneza]

my mechanic said we can find at chop shop...he said the best way to do is to keep our main CAT at the front for fuel saver and error signal and keep our extractor coz ours bimmer extractor is good enough design for performance, just do connection from the middle exhaust system ( after main CAT ) straight piping to the muffler. if have little bit more budget get the M3 / AC middle and rear box...sounds awesome what he did to his 325. i will check the price and will let u guys know..hehe feels more interesting now...at least have some idea to do...