whats an ETK...:dunno:31st330i said:the muffler is called a silencer in the ETK. I think the air box is called an intake mufler.
anyway, check this thread:
I think the performance gains in this department are dependent upon the type of engine and style of driving. As I understand it, a freer-flowing-than-stock exhaust will improve higher end horsepower while sacrificing some lower end torque. With domestic, pushrod V8 engines that have gobs of low end torque and peak horsepower at a relatively low point in the rev band, this is an ideal situation.bmwti said:the truth is that exhausts really only offer minimal gains. its more for looks and sound.
thank you for your advice.bmwti said:actually do what you want,
I just think that the "BMW sport silencer" looks butt ugly. the truth is that exhausts really only offer minimal gains. its more for looks and sound. I have no clue what it sounds like but im sure it isnt that much different than the stock and definitly not worth the 400 dollars or 1000 dollars that it is. If you are worried about the warranty than look into something like the DINAN exhaust.
Hee... Did you know 31st330i's user name used to be "1stDinan3"? His car was the development car. His website also has an excellent review of the Dinan 3 package. :thumbup:bmwti said:If you are worried about the warranty than look into something like the DINAN exhaust.
no, I did not know that, and the review of the dinan 3 package was interesting and well writtenJspeed said:
Hee... Did you know 31st330i's user name used to be "1stDinan3"? His car was the development car. His website also has an excellent review of the Dinan 3 package. :thumbup:
thanks for sharing. do you have any idea if the perforated core tubes running through the muffler are any larger than stock? aside from the valve, the stock muffler is already straight through so unless these were also made larger then there would be very little performance gain if any - like with the aftermarket offerings. did you notice any sort of a performance gain? personally, I think it looks nice.db-330Ci said:Yes, BMW offers a sport rear silencer with 2x76mm tips!
The sport real silencer cost about $ 600 but the sound is not much louder than a stock 330i!
Here's a pic of the BMW sport exhaust with 2x76mm:
It looks like the eisenmann exhausts... but the BMW sport rear silencer were produced by "Eberspächer" ( German company which made nearly all stock BMW exhausts )