Which downpipes are you guys using?

[achi 3.0]

I use the Eisenmann Dps. Perfect match and with flex and heat shield. Car feels much more agressive than without dps

[edwinm3]

Originally Posted by CaryTheLabelGuy

It has yet to be an issue for the N54 and N55 guys, nor any of the S55 guys to date.

You're more than welcome to vote with your wallet, though.

Honestly, I'd be way more worried about the expansion joint failing. Lol.

Honestly, while I'm seeing your point I think you're missing mine here. It really has nothing to do with anyone's wallet but with whatever makes you happy and gives you peace of mind, if no flex is ok for you it might not be for others like me.

This is an old topic beaten to death in other non BMW forums for years and years.

[CaryTheLabelGuy]

Originally Posted by edwinm3

Honestly, while I'm seeing your point I think you're missing mine here. It really has nothing to do with anyone's wallet but with whatever makes you happy and gives you peace of mind, if no flex is ok for you it might not be for others like me.

This is an old topic beaten to death in other non BMW forums for years and years.

I am seeing your point. I just don't think it as big a deal as you think it is.

As for the wallet comment; it is an old adage. It has nothing to do with how expensive something is. I'm simply saying, buy the one you want. I really couldn't care less what downpipes you run or don't run.

The world is your oyster, so-to-speak.

[edwinm3]

Originally Posted by CaryTheLabelGuy

I am seeing your point. I just don't think it as big a deal as you think it is.

As for the wallet comment; it is an old adage. It has nothing to do with how expensive something is. I'm simply saying, buy the one you want. I really couldn't care less what downpipes you run or don't run.

The world is your oyster, so-to-speak.

I guess I should have known better.

It's ok to try and support one's favorite regardless of why they do what they do

[VCP]

I ran Zima Ceramic DP's for over a year with not 1 CEL. not even ghost code. They fit perfect, the ceramic coating really lowered the underhood heat temp as well. Not sure if you can find a better solution out there. Having no CEL is worth it all I feel.

[Jeff@TopGearSolutions]

Originally Posted by Bowser330

I agree with not needing it I've posted that same thing you've said to others I just wanted to know which sells it with the oem looking expansion (flex) piece, that's all. I think Akra does but wasn't sure if there were any others. Just curious.

Just to add to this thread since it's pretty popular with good info. Active Autowerke also came out with a flex downpipe.



According to a few more customers as of recently, the flex does keep down the vibrations so apparently it's not all just about the catalyst and does help with some noise.

[Mike@N54Tuning.com]

Originally Posted by Jeff@TopGearSolutions

Just to add to this thread since it's pretty popular with good info. Active Autowerke also came out with a flex downpipe.



According to a few more customers as of recently, the flex does keep down the vibrations so apparently it's not all just about the catalyst and does help with some noise.

Vibrations from what though?

There is nothing to vibrate if the downpipes are installed correctly (not touching subframe) as they hook up to the exhaust which is mounted with rubber exhaust hangers which allow a large range of motion and are infinitely more pliable then and expansion bellows on the downpipes. If anything is to move its the exults hangers first. Bending rubber versus bending steel is obviously simpler, so I can't really imagine a point where the downpipes would flex with the exhaust remaining in place.

Mike

[Jeff@TopGearSolutions]

Originally Posted by Mike@N54Tuning.com

Vibrations from what though? There is nothing to vibrate if the downpipes are installed correctly as they hook up to the exhaust which is mounted with rubber exhaust hangers which allow a large range of motion and are infinitely more pliable then and expansion bellows on the downpipes. If anything is to move its the exults hangers first. Bending rubber versus bending steel is obviously simpler, so I can't really imagine a point where the downpipes would flex with the exhaust remaining in place.

Mike

This was mentioned by very reputable shops in the area who not only own M4's but work on dozens of them a week. Don't shoot the messenger.

Perhaps vibrations isn't the correct word, maybe it was resonance?

[Bowser330]

Originally Posted by Jeff@TopGearSolutions

Just to add to this thread since it's pretty popular with good info. Active Autowerke also came out with a flex downpipe.

[IMG]http://ep.yimg.com/ay/yhst-132701647...shipping-4.jpg[/IMG]

According to a few more customers as of recently, the flex does keep down the vibrations so apparently it's not all just about the catalyst and does help with some noise.

The spring type is just so much better looking than the mesh type. Not sure why I care what the ground is looking at....

[CaryTheLabelGuy]

I have zero vibrations from my VRSF downpipes. Feels totally stock, with the exception of a better sounding exhaust.

[MetZF82]

Originally Posted by CaryTheLabelGuy

I have zero vibrations from my VRSF downpipes. Feels totally stock, with the exception of a better sounding exhaust.

I'm having my vrsf downpipes installed tuesday am. The jb4 and intake are in as of a few days. Can't wait.

[mike@x-ph.com]

Originally Posted by MetZF82

I'm having my vrsf downpipes installed tuesday am. The jb4 and intake are in as of a few days. Can't wait.

let us know how it goes

[edwinm3]

Originally Posted by Jeff@TopGearSolutions

Just to add to this thread since it's pretty popular with good info. Active Autowerke also came out with a flex downpipe.



According to a few more customers as of recently, the flex does keep down the vibrations so apparently it's not all just about the catalyst and does help with some noise.

The guys at AA just installed a set of their new DP's this past Thursday, all I can say is wow, they're perfect. I'm very satisfied and this is coming from me who would not do any DP's without the flex, I have the Akra Evo and it screams now. Good job AA!!!

[F80Juan]

Originally Posted by mike@x-ph.com

let us know how it goes

+1 really curious as to how well these fit and if they make the same power as the other brands

[2SNAILS]

Gintani dp's here and they are awesome!

[///bproden]

Installed akraprovic dp's yesterday. Fitment and quality was perfect. I am happy with them and spending a few more dollars for them was well worth it imo

[CaryTheLabelGuy]

Originally Posted by F80Juan

+1 really curious as to how well these fit and if they make the same power as the other brands

My VRSF fit perfect. I guarantee they make power as compared to the other brands. The downpipes are perfectly smooth on the inside, especially around the v-band flange, where most other brands have an abrupt step-down. I am waiting to get back on the dyno to see how much I picked up from the VRSF downpipes, but I can certainly feel it on the butt dyno.

[F80Juan]

Originally Posted by CaryTheLabelGuy

My VRSF fit perfect. I guarantee they make power as compared to the other brands. The downpipes are perfectly smooth on the inside, especially around the v-band flange, where most other brands have an abrupt step-down. I am waiting to get back on the dyno to see how much I picked up from the VRSF downpipes, but I can certainly feel it on the butt dyno.

Ahh very nice to hear! thank you for the post and I'm looking forward to some dyno pulls! They look like high quality pipes. Can't wait to get my set in soon

[mike@x-ph.com]

Originally Posted by edwinm3

The guys at AA just installed a set of their new DP's this past Thursday, all I can say is wow, they're perfect. I'm very satisfied and this is coming from me who would not do any DP's without the flex, I have the Akra Evo and it screams now. Good job AA!!!

AA did an amazing job with the M3/M4 products

[Jeff@TopGearSolutions]

Originally Posted by Bowser330

The spring type is just so much better looking than the mesh type. Not sure why I care what the ground is looking at....

It does look fancy

Originally Posted by CaryTheLabelGuy

I have zero vibrations from my VRSF downpipes. Feels totally stock, with the exception of a better sounding exhaust.

Good to know.

Originally Posted by edwinm3

The guys at AA just installed a set of their new DP's this past Thursday, all I can say is wow, they're perfect. I'm very satisfied and this is coming from me who would not do any DP's without the flex, I have the Akra Evo and it screams now. Good job AA!!!

Nice. Enjoy!

[SflBimmer8484]

Originally Posted by edwinm3

The guys at AA just installed a set of their new DP's this past Thursday, all I can say is wow, they're perfect. I'm very satisfied and this is coming from me who would not do any DP's without the flex, I have the Akra Evo and it screams now. Good job AA!!!

There is no draw back to oem style flex sections and our price point is lower than any flex section pipe available as well as most non flexed pipes.

Please note we also have swain costing available as an option.

Please contact any of our vendors for pricing.

[Tiago@VRSF]

Originally Posted by EALm4

VRSF

Originally Posted by CaryTheLabelGuy

My VRSF fit perfect. I guarantee they make power as compared to the other brands. The downpipes are perfectly smooth on the inside, especially around the v-band flange, where most other brands have an abrupt step-down. I am waiting to get back on the dyno to see how much I picked up from the VRSF downpipes, but I can certainly feel it on the butt dyno.

Thanks for the kind words guys

Originally Posted by MetZF82

I'm having my vrsf downpipes installed tuesday am. The jb4 and intake are in as of a few days. Can't wait.

Thanks for the support, you're going to love them!