N26 Secondary Catalytic Converter

Noelified · 06-20-2019, 10:19 AM

Quote:

Originally Posted by esoj37

The easiest way to go about it, would the AWE midpipe with the AWE exhaust, but the wife wont let me drop $1600 on an exhaust lol.

The reason cutting is involved for any axle back is because the factory exhaust is one piece from the downpipe back. If you are changing just axle back or just midpipe, you need to cut. If you are changing both no cutting required, just drop it out. I will add, that the AWE axle back is just another resonator, not so much a muffler. It's flows well but does sound incredibly loud with a catless DP. I installed my stock CAT back and love the sound now. Still on the loud side, but stock CAT, AWE midpipe and AWE axle back allows for plenty of growl and burbles (even without a tune like BM3). For a more refined sound with a catless DP, go with AWE midpipe, BMW MPE.

esoj37 · 06-20-2019, 10:36 AM

Quote:

Originally Posted by Noelified

The reason cutting is involved for any axle back is because the factory exhaust is one piece from the downpipe back. If you are changing just axle back or just midpipe, you need to cut. If you are changing both no cutting required, just drop it out. I will add, that the AWE axle back is just another resonator, not so much a muffler. It's flows well but does sound incredibly loud with a catless DP. I installed my stock CAT back and love the sound now. Still on the loud side, but stock CAT, AWE midpipe and AWE axle back allows for plenty of growl and burbles (even without a tune like BM3). For a more refined sound with a catless DP, go with AWE midpipe, BMW MPE.

I see, thanks for the recommendation!

rjd_F30 · 06-20-2019, 12:46 PM

Quote:

Originally Posted by Noelified

The reason cutting is involved for any axle back is because the factory exhaust is one piece from the downpipe back. If you are changing just axle back or just midpipe, you need to cut. If you are changing both no cutting required, just drop it out. I will add, that the AWE axle back is just another resonator, not so much a muffler. It's flows well but does sound incredibly loud with a catless DP. I installed my stock CAT back and love the sound now. Still on the loud side, but stock CAT, AWE midpipe and AWE axle back allows for plenty of growl and burbles (even without a tune like BM3). For a more refined sound with a catless DP, go with AWE midpipe, BMW MPE.

Agreed! Catless downpipe and MPE sound great together, definitely not too loud

As a sidenote, you wouldn't be interested in trading your AWE muffler for my MPE would you? Sounds like you thought AWE and catless was too loud, so we could swap so you get quieter and I get louder... Just a thought

Craeftig · 06-20-2019, 07:58 PM

I've been thinking about getting an AWE catback, but I already have ER catless DP + Remus axl back. I want to get rid of the 2nd cat (mid pipe) does AWE sell just the midpipe or u would actually have to get rid of the Remus an go with the AWE catback?

esoj37 · 06-20-2019, 08:24 PM

Quote:

Originally Posted by Craeftig

I've been thinking about getting an AWE catback, but I already have ER catless DP + Remus axl back. I want to get rid of the 2nd cat (mid pipe) does AWE sell just the midpipe or u would actually have to get rid of the Remus an go with the AWE catback?

You can buy the midpipe by itself.

Craeftig · 06-21-2019, 11:47 AM

Quote:

Originally Posted by esoj37

Quote:

Originally Posted by Craeftig

I've been thinking about getting an AWE catback, but I already have ER catless DP + Remus axl back. I want to get rid of the 2nd cat (mid pipe) does AWE sell just the midpipe or u would actually have to get rid of the Remus an go with the AWE catback?

You can buy the midpipe by itself.

Yeah but how about fitment issues? I don't want to just buy the midpipe an find out there's a fitment issue.

esoj37 · 06-21-2019, 11:58 AM

Quote:

Originally Posted by Craeftig

Yeah but how about fitment issues? I don't want to just buy the midpipe an find out there's a fitment issue.

I couldn't tell you from first hand experience. I still have a stock exhaust on my car, but as far I know the AWE midpipe fits like oem. Noelified stated it only requires cutting when you are bolting it on to a stock exhaust, as the stock exhaust is one piece.

I plan on getting the AWE midpipe and an AA exhaust. I am hoping I dont have to do any cutting, but if the tips on the exhaust stick out too much, I got my dremel ready.

esoj37 · 06-21-2019, 12:04 PM

I think you will be fine, honestly. Maybe, one of the guys with more experience on 328i exhaust set ups will chime in.

Noelified · 06-21-2019, 12:11 PM

Quote:

Originally Posted by Craeftig

I've been thinking about getting an AWE catback, but I already have ER catless DP + Remus axl back. I want to get rid of the 2nd cat (mid pipe) does AWE sell just the midpipe or u would actually have to get rid of the Remus an go with the AWE catback?

You should easily be able to go AWE midpipe just bolt in. How was your Remus axle back put on? Did you DIY or did a shop do it. If it wasn't welded up to factory midpipe you should be fine. The factory muffler had to have been cut to remove it. I'll take a pic of factory Cat back so you have an idea what I'm talking about.

Noelified · 06-21-2019, 12:15 PM

Quote:

Originally Posted by esoj37

Quote:

Originally Posted by Craeftig

Yeah but how about fitment issues? I don't want to just buy the midpipe an find out there's a fitment issue.

I couldn't tell you from first hand experience. I still have a stock exhaust on my car, but as far I know the AWE midpipe fits like oem. Noelified stated it only requires cutting when you are bolting it on to a stock exhaust, as the stock exhaust is one piece.

I plan on getting the AWE midpipe and an AA exhaust. I am hoping I dont have to do any cutting, but if the tips on the exhaust stick out too much, I got my dremel ready.

If you are replacing cat back with aftermarket it should all be bolt on. Unbolt factory system at DP and it's all one piece that drops, from cat to tailpipe. Then bolt on AWE midpipe to DP and then AA muffler to Midpipe. I don't have experience with AA but if Renan axel back it must be made to fit factory or aftermarket midpipe at same location.

Noelified · 06-21-2019, 12:16 PM

Quote:

Originally Posted by rjdnyy224

Quote:

Originally Posted by Noelified

The reason cutting is involved for any axle back is because the factory exhaust is one piece from the downpipe back. If you are changing just axle back or just midpipe, you need to cut. If you are changing both no cutting required, just drop it out. I will add, that the AWE axle back is just another resonator, not so much a muffler. It's flows well but does sound incredibly loud with a catless DP. I installed my stock CAT back and love the sound now. Still on the loud side, but stock CAT, AWE midpipe and AWE axle back allows for plenty of growl and burbles (even without a tune like BM3). For a more refined sound with a catless DP, go with AWE midpipe, BMW MPE.

Agreed! Catless downpipe and MPE sound great together, definitely not too loud

As a sidenote, you wouldn't be interested in trading your AWE muffler for my MPE would you? Sounds like you thought AWE and catless was too loud, so we could swap so you get quieter and I get louder... Just a thought

You know.....I might take you up on that offer.

Once I figure out what I want to do about DP. Catless or high flow.

rjd_F30 · 06-21-2019, 05:55 PM

Quote:

Originally Posted by Noelified

You know.....I might take you up on that offer.

Once I figure out what I want to do about DP. Catless or high flow.

That would be awesome

Let me know what you decide on doing... We're local-ish, I'm sure we could work out a meet-up.

esoj37 · 06-21-2019, 11:06 PM

Its done boys! AWE midpipe and AA axle back on the way!

Cnoprea · 06-22-2019, 04:06 AM

Quote:

Originally Posted by sspade

Can someone with an N26 and catless downpipe (as the only exhaust mod) post a sound clip?

I know this is an old comment, but for anyone else here's how my car sounded with an ER downpipe and stock muffler, it basically sounds like an advanced dyson.

Cnoprea · 06-22-2019, 04:10 AM

Here's my setup with an ER catless dp and MPE with burbles turned up to max

Craeftig · 06-23-2019, 12:57 AM

Quote:

Originally Posted by Noelified

Quote:

Originally Posted by Craeftig

I've been thinking about getting an AWE catback, but I already have ER catless DP + Remus axl back. I want to get rid of the 2nd cat (mid pipe) does AWE sell just the midpipe or u would actually have to get rid of the Remus an go with the AWE catback?

You should easily be able to go AWE midpipe just bolt in. How was your Remus axle back put on? Did you DIY or did a shop do it. If it wasn't welded up to factory midpipe you should be fine. The factory muffler had to have been cut to remove it. I'll take a pic of factory Cat back so you have an idea what I'm talking about.

A shop actually installed my axle back exhaust, if it's true that the AWE midpipe fits like OEM then I'll give it a shot.

madmortar · 06-25-2019, 10:05 AM

For what its worth, I love my DINAN axle back, sounds deep and "thick".
Only thing is it is quiet at high RPMs. Curious to add a catless DP one day but keep my 2nd N26 cat to see how it sounds.

Craeftig · 06-25-2019, 02:37 PM

Quote:

Originally Posted by madmortar

For what its worth, I love my DINAN axle back, sounds deep and "thick".
Only thing is it is quiet at high RPMs. Curious to add a catless DP one day but keep my 2nd N26 cat to see how it sounds.

I run the Remus axle back + ER catless DP an 2nd cat stock. It's pretty loud but not awe loud.

CandyRedRC46 · 06-25-2019, 02:48 PM

Quote:

Originally Posted by madmortar

For what its worth, I love my DINAN axle back, sounds deep and "thick".
Only thing is it is quiet at high RPMs. Curious to add a catless DP one day but keep my 2nd N26 cat to see how it sounds.

I am running the Dinan axle back too and loving it. Even with a catless down pipe it is still a very mature and smooth tone. It is almost too quiet, but I am happy its not any louder late night and early morning. The cold start is pretty loud, but it settles down nicely after a minute.

madmortar · 06-27-2019, 01:27 PM

Quote:

Originally Posted by CandyRedRC46

I am running the Dinan axle back too and loving it. Even with a catless down pipe it is still a very mature and smooth tone. It is almost too quiet, but I am happy its not any louder late night and early morning. The cold start is pretty loud, but it settles down nicely after a minute.

Indeed!
Did you say you installed one for a 330i on your 328i?

CandyRedRC46 · 06-27-2019, 02:05 PM

Quote:

Originally Posted by madmortar

Indeed!
Did you say you installed one for a 330i on your 328i?

I believe it was for a 430i, but could have been a 330i, I forget, but it definitely was not being advertised as for a 328i. It looked like a really close fit and was listed at $500 on ebay, so I jumped on it. I figured if it was off by a few inches or degrees the exhaust shop would be able to sort it out. It fit perfect.

CandyRedRC46 · 06-27-2019, 02:26 PM

Quote:

Originally Posted by madmortar

Indeed!
Did you say you installed one for a 330i on your 328i?

Here you go. The whole adventure lol...

https://f30.bimmerpost.com/forums/sh....php?t=1464771

06-20-2019, 07:58 PM	#26
Craeftig Private 20 Rep 77 Posts Drives: BMW 2014 F30 Join Date: Mar 2019 Location: Oxnard iTrader: (0)	I've been thinking about getting an AWE catback, but I already have ER catless DP + Remus axl back. I want to get rid of the 2nd cat (mid pipe) does AWE sell just the midpipe or u would actually have to get rid of the Remus an go with the AWE catback?
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06-21-2019, 12:04 PM	#30
esoj37 Lieutenant 156 Rep 461 Posts Drives: M2C 6MT Join Date: Feb 2017 Location: New Orleans iTrader: (12)	I think you will be fine, honestly. Maybe, one of the guys with more experience on 328i exhaust set ups will chime in. __________________ HS S55 F87 MG B58 F30 - Gone MG N20 F30 - Gone
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06-21-2019, 11:06 PM	#35
esoj37 Lieutenant 156 Rep 461 Posts Drives: M2C 6MT Join Date: Feb 2017 Location: New Orleans iTrader: (12)	Its done boys! AWE midpipe and AA axle back on the way! __________________ HS S55 F87 MG B58 F30 - Gone MG N20 F30 - Gone
	Appreciate 1 Noelified228.00 Quote

06-22-2019, 04:10 AM	#37
Cnoprea Private First Class 50 Rep 184 Posts Drives: 328i N26 Join Date: Mar 2015 Location: Troy Michigan iTrader: (0) Garage List 2013 BMW 328i [0.00]	Here's my setup with an ER catless dp and MPE with burbles turned up to max
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06-25-2019, 10:05 AM	#39
madmortar Captain 181 Rep 785 Posts Drives: 2013 BMW 328i M-Sport Join Date: Aug 2016 Location: Savannah, GA iTrader: (0)	For what its worth, I love my DINAN axle back, sounds deep and "thick". Only thing is it is quiet at high RPMs. Curious to add a catless DP one day but keep my 2nd N26 cat to see how it sounds.
	Appreciate 0 Quote