exhaust options

[equate975]

Jumping in here

A single 2.5 with a cat and muffler is more than sufficient for this engine NA. I would recommend just getting a magnaflow cat and muffler. I have that setup and it cost me about $250 for a full out exhaust.

[1990m3]

Static -

want to trade exhausts? I have e36 cats and muffler fitted. I'm ditching them this winter for a single setup as my car has become track only. Seriously, want to trade? Mine isn't perfect but it works well, passes emissions, and is as quiet as possible :)

[static]

Static -

want to trade exhausts? I have e36 cats and muffler fitted. I'm ditching them this winter for a single setup as my car has become track only. Seriously, want to trade? Mine isn't perfect but it works well, passes emissions, and is as quiet as possible :)

hmm, if i were to get rid of my exhaust, i'd at least try to cut some losses and sell it. It's easily worth over a grand (all mandrel, SS, with $$$ metallic cat). Plus i am in canada and i imagine shipping will kill us.

Alex

[matt]

Jumping in here

A single 2.5 with a cat and muffler is more than sufficient for this engine NA. I would recommend just getting a magnaflow cat and muffler. I have that setup and it cost me about $250 for a full out exhaust.

And it's loud as hell.

[static]

And it's loud as hell.

yes!, i was gonna say

whatever he means by "sufficient". Sufficient for the engine? or sufficient for the humans near the engine?

[asubimmer]

it might not be bad matt. Muffler placement has more to do w/ the sound level and rasp level than the actual muffler imho. I am running a single 2.5" all the way back w/ just a glasspack inbetween the seats and then a cheapo cannon on the back. It sound great and its loud but not more than a triflow catback.

[So Live]

Do you guys think dual 2" is too much? I hear matt saying run single 2 1/4 but i like the dual pipes. The ability to run x/h pipes should help with the rasp.

Also, you guys dont reccomend running a magnaflow, what about something like a flowmaster 40 series or something? Is a chambered muffler really going to kill my performance?

[cheades]

They are wrong automatically writing off straight through mufflers, I have 2 Borla's on mine and it doesn't drone at all. Quiet when driving and loud when I get on it.

[So Live]

What are the rest of your specs? what size piping? single or dual? headers or stock manifolds?

Just looking at some e36 M catbacks, UUC and IE's are 2.38" dual pipes. if 1 2.25 pipe is optimal, why do these guys make dual 2.38 pipes? Its pretty obvious to see what flows better(more)

[BigD]

They are wrong automatically writing off straight through mufflers, I have 2 Borla's on mine and it doesn't drone at all. Quiet when driving and loud when I get on it.

I hope you're right. My setup is OBDII headers, OBDI midpipe, UUC RSC36. I'm kinda stoked about it, I think it's going to sound orgasmic.

[bimerok]

I had the same fear, but I just installed Vibrant straight through muffler (glass packed) and to my surprise it is not loud at all. It has nice deep tone to it.

I have s50 with s50 headers and mid-pipe, connected to Vibrant straight through 2.5" dual-in/dual-out.

The best part is that the muffler was only $130

[PiercedE30]

I'm just going to be matching ID pipe with the ID of the collectors on my headers. So I will be running dual 2.25" back to a Dynomax I have laying around.

[So Live]

i was thinking dual 2.25 but it seems pretty huge. cross-sectionally speaking its bigger than a single 3". Alot of people rock the 3 for turbo set ups. i dont know...

[87-325ic]

A single 2.5 inch seems to be the best option, or at least i want it to.

are there muffler options for this with a non-straight-through design that sound decent?

dual 2.25+ just seems like too much piping.

i will have the s52 headers on it, and that is probably it, i will need to piece the rest of it back from there.

help me out please.

[matt]

I'm just going to be matching ID pipe with the ID of the collectors on my headers. So I will be running dual 2.25" back to a Dynomax I have laying around.

And you will have an exhaust that's twice as heavy as it could be, and will probably cost you power down low.