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02-02-2009, 04:01 PM | #1 |
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135i exhaust - is there actually an aftermkt true double cat back (quad tip) exhaust?
Been looking around some aftermarket options such as Eisenmann and Remus who offer a quad look, but to me that is not a real quad exhaust. It there a manufacturer that offers a true 2-way cat back exhaust (2 cats, 2 resonators, 2 outlets, 2 end cans on each outlet).
I have seen the Eisenmann application on a E39 540i and it looks pretty silly. Especially when cold, you notice that the exahust gases coming out of the driver side (the stock exhaust side) are much stronger than on the other side, which is a simple loop coming from the one end section. And if you jack the car up, then it looks even sillier |
02-02-2009, 04:49 PM | #3 |
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I figured so.
However without a spare, you would have thought BMW would have rearranged the trunk liner to accommodate a true dual exhaust. Or perhaps they are keeping this for the ///M1
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02-03-2009, 12:21 PM | #4 |
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dual exhaust is cool on cars that come with them but when they don't come with them you're just adding extra weight to the car. enough reason for me not to do it.
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02-03-2009, 12:42 PM | #5 | |
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Quote:
Generally aftermarket exhausts are much lighter, I have saved between 35 and 50 lbs in my sedans (granted those came with true quads). But if you do a resonator delete (i.e. use an X or H-pipe), and cans which generally are much lighter than the stock ones, there are weight savings. At the end of the day, for the 1-series it may turn out to be close to a marginal increase in weight, and the added sound and perhaps better flow (and slight but debatable increase in hp) due to less back pressure may justify it. Sad part is, one needs to customize the trunk liner which means chopping and welding, not something people want to explore on a brand new car... |
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