[chenry]

So my Son is fitting an axle back 2015 335 muffler to his 2016 328 msport - it's really just about aesthetics going from a twin single sided
exhaust exit to the dual single sided of the 335/340 / question is this is an easy opportunity to ditch the resonator(s) your opinion as to whether we should?

I've searched a bit and I find a lot of muffler/res delete etc...but not much on a simple res delete on an otherwise stock exhaust

I enjoyed my dinan midpipe on my B58 - so just curious if this is worthwhile while it's up on the lift

TIA

[bmwchue]

Originally Posted by chenry

So my Son is fitting an axle back 2015 335 muffler to his 2016 328 msport - it's really just about aesthetics going from a twin single sided
exhaust exit to the dual single sided of the 335/340 / question is this is an easy opportunity to ditch the resonator(s) your opinion as to whether we should?

I've searched a bit and I find a lot of muffler/res delete etc...but not much on a simple res delete on an otherwise stock exhaust

I enjoyed my dinan midpipe on my B58 - so just curious if this is worthwhile while it's up on the lift

TIA

yes if you want to make more power

[CandyRedRC46]

Originally Posted by bmwchue

yes if you want to make more power

Lol stop. Resonators are not restrictive and deleting one will not add any power. All resonator deletes do is add drone and "mad pops, bangs, gunshots" for the burble bro crowd. Now if there is a secondary cat on your car like the n26, go ahead and delete that. If you are looking for the restriction, its the catted down pipe, focus on that instead...

[rjd_F30]

Originally Posted by bmwchue

yes if you want to make more power

Nothing behind the cat has any substantial impact on power.

Originally Posted by CandyRedRC46

Lol stop. Resonators are not restrictive and deleting one will not add any power. All resonator deletes do is add drone and "mad pops, bangs, gunshots" for the burble bro crowd. Now if there is a secondary cat on your car like the n26, go ahead and delete that. If you are looking for the restriction, its the catted down pipe, focus on that instead...

Burble bro? I like the backfires/burbles/gunshots/pops but am most certainly not a f*ckin burble bro lol. Also, the resonator won't have any impact on the burbles you'll get.

OP, there's really no reason to ditch the resonator. I kept and plan to keep my stock one. The resonator is designed to tune out certain unwanted frequencies to make the car sound better, not to lessen the volume of the exhaust. So I really don't see a reason to get rid of it, even though lots of people do.

[floridaorange]

I saw a burble bro yesterday droning his way down 1792 (main road in Orlando) in his 2 series... loud and if im honest a bit obnoxious.


...having said that, my friend and I removed his entire exhaust from his M3 17 yrs ago and drove it through downtown La Jolla.. granted it was a 1 time thing.

[bmwchue]

Originally Posted by CandyRedRC46

Lol stop. Resonators are not restrictive and deleting one will not add any power. All resonator deletes do is add drone and "mad pops, bangs, gunshots" for the burble bro crowd. Now if there is a secondary cat on your car like the n26, go ahead and delete that. If you are looking for the restriction, its the catted down pipe, focus on that instead...

oh shoot sorry ive mistaken it for the downpipe. as for the n26 i still have the secondary cat. i wonder if removing it will help make more power? and on the inside is it honeycomb like the catalyic converter or just hollow like a resonator? maybe thats where my power loss is at hmmm....

[rjd_F30]

Originally Posted by bmwchue

oh shoot sorry ive mistaken it for the downpipe. as for the n26 i still have the secondary cat. i wonder if removing it will help make more power? and on the inside is it honeycomb like the catalyic converter or just hollow like a resonator? maybe thats where my power loss is at hmmm....

Taking out the secondary cat will net you a few hp. The secondary cat is honeycombed inside, not hollow. Wouldn't do much filtering if it were hollow

[bmwchue]

Originally Posted by rjdnyy224

Taking out the secondary cat will net you a few hp. The secondary cat is honeycombed inside, not hollow. Wouldn't do much filtering if it were hollow

man i pretty much like how it sounds right now. nice and quiet but when you get on it you can hear it. guess ill have to try it out for myself

[rjd_F30]

Originally Posted by bmwchue

man i pretty much like how it sounds right now. nice and quiet but when you get on it you can hear it. guess ill have to try it out for myself

If you're happy now than don't change anything

[CandyRedRC46]

Originally Posted by bmwchue

man i pretty much like how it sounds right now. nice and quiet but when you get on it you can hear it. guess ill have to try it out for myself

You could always just replace the 2nd cat with a resonator...

[Fronttwelv]

Have the shop make a 3" pipe from the downpipe back. should be pretty cheap. It'll add sound for sure. If it's too drone-y... which it won't be with that stock muffler.... get a Vibrant Performance resonator. and throw that in the middle of the exhaust.

[chenry]

So he ended up with the 335 muffler and then simply had the rear most resonator eliminated and has the exhaust flap permanently opened. Drove the car 1st with the 335 muffler and flap opened, it was slightly louder and a bit more throaty, but not by much really more of a cosmetic thing. Then with the rear resonator removed it was slightly louder (maybe 5%), no drone, no cheap sound - basically still sounds like stock.

[scostu]

Originally Posted by chenry

So he ended up with the 335 muffler and then simply had the rear most resonator eliminated and has the exhaust flap permanently opened. Drove the car 1st with the 335 muffler and flap opened, it was slightly louder and a bit more throaty, but not by much really more of a cosmetic thing. Then with the rear resonator removed it was slightly louder (maybe 5%), no drone, no cheap sound - basically still sounds like stock.

You will get more sound from an axleback exhaust from ActiveAutowerkes or Remus for not much $$$.

I had a AA exhaust on my previous F31 with N20.....and I loved the sound.

I had OEM downpipe and OEM resonated midpipe on the sportwagon.

[horneth]

Originally Posted by chenry

So my Son is fitting an axle back 2015 335 muffler to his 2016 328 msport - it's really just about aesthetics going from a twin single sided
exhaust exit to the dual single sided of the 335/340 / question is this is an easy opportunity to ditch the resonator(s) your opinion as to whether we should?

I've searched a bit and I find a lot of muffler/res delete etc...but not much on a simple res delete on an otherwise stock exhaust

I enjoyed my dinan midpipe on my B58 - so just curious if this is worthwhile while it's up on the lift

TIA

I'm about to add a 335i muffler as well. Did you have to replace the right exhaust hanger on the vehicle, or did it fit with the stock 328i hangers? I've measured and the 335i muffler seems about an inch shorter than the current one, not sure if it's enough to warrant the new hanger or not. What did you find when you did it?

[LordRuxpin]

Originally Posted by horneth

I'm about to add a 335i muffler as well. Did you have to replace the right exhaust hanger on the vehicle, or did it fit with the stock 328i hangers? I've measured and the 335i muffler seems about an inch shorter than the current one, not sure if it's enough to warrant the new hanger or not. What did you find when you did it?

Hangers fit just fine...

[chenry]

Originally Posted by LordRuxpin

Hangers fit just fine...

Yes agree with this easy breezy