BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      02-02-2009, 05:01 PM   #1
///M1
Brigadier General
///M1's Avatar
United_States
137
Rep
3,095
Posts

Drives: Many
Join Date: Feb 2009
Location: North of 4K RPM

iTrader: (1)

Garage List
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
Appreciate 0
      02-02-2009, 05:10 PM   #2
jeremyc74
Banned
United_States
65
Rep
5,972
Posts

Drives: '08 135i Montego/Terra
Join Date: Feb 2008
Location: Evansville, IN

iTrader: (0)

It's not likely that there's room under a 135i for true dual mufflers. It's pretty tight under there already.

Appreciate 0
      02-02-2009, 05:49 PM   #3
///M1
Brigadier General
///M1's Avatar
United_States
137
Rep
3,095
Posts

Drives: Many
Join Date: Feb 2009
Location: North of 4K RPM

iTrader: (1)

Garage List
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
Appreciate 0
      02-03-2009, 01:21 PM   #4
boostin
First Lieutenant
4
Rep
316
Posts

Drives: MY00 S2000
Join Date: Jul 2007
Location: CT

iTrader: (0)

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.
__________________
MY00 S2000 #8712
Appreciate 0
      02-03-2009, 01:42 PM   #5
///M1
Brigadier General
///M1's Avatar
United_States
137
Rep
3,095
Posts

Drives: Many
Join Date: Feb 2009
Location: North of 4K RPM

iTrader: (1)

Garage List
Quote:
Originally Posted by boostin View Post
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.
Perhaps, but somewhat debatable depending on the setup. I don't know what the stock 135i exhaust weighs, maybe not much in which case you are right.

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...
Appreciate 0
      02-03-2009, 01:44 PM   #6
fmxomar
Major
76
Rep
1,245
Posts

Drives: bmw 135i
Join Date: Jun 2008
Location: san diego, ca

iTrader: (15)

stock exhaust weighs 91 pounds if i remember correctly from what riss racing said
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:45 AM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST