[DoubleM]

I recently installed an ER catted downpipe from Extreme Powerhouse.
Installation was pretty easy and so far, absolutely love it.
Cold start up is definitely louder. Daily driving in standard sport mode the exhaust is more 'aggressive' sounding.
Definitely notice the increased power - I'm also running a JB-4, now switched to Map 5.
Overall VERY happy with the purchase and quality.

The catted version is expensive compared to others, but the ER downpipe was an exact fit, VERY well constructed.
Don't bother with the VRSF pipe. It's cheaper, but not as well made, missing the stock bracket (!) and I couldn't even get it. Out of stock with no visibility into when they would have more.
On the ER site, it doesn't specifically call out the M40i model, but it's the same B58 engine on those listed.

https://x-ph.com/evolution-racewerks...0-x3-downpipe/

[suby01]

Does anyone know if the availability of DP's for the 2020 M40i?

[FSociety]

Originally Posted by suby01

Does anyone know if the availability of DP's for the 2020 M40i?

Five35 is picking up some DP for his 2020 X3 M40i

[freshxdough]

Five35 is picking up some DP for his 2020 X3 M40i[/QUOTE]

Which brand did he go with? I have a VRSF from a 340i and I have not installed yet. Just wondering. Thanks.

[Adam X3M40i]

Originally Posted by freshxdough

Five35 is picking up some DP for his 2020 X3 M40i

Which brand did he go with? I have a VRSF from a 340i and I have not installed yet. Just wondering. Thanks.[/QUOTE]
https://www.bm3tuning.com/g30/n55-ca...downpipe-me7g5

[Sammy_V]

Originally Posted by DoubleM

I recently installed an ER catted downpipe from Extreme Powerhouse.
Installation was pretty easy and so far, absolutely love it.
Cold start up is definitely louder. Daily driving in standard sport mode the exhaust is more 'aggressive' sounding.
Definitely notice the increased power - I'm also running a JB-4, now switched to Map 5.
Overall VERY happy with the purchase and quality.

The catted version is expensive compared to others, but the ER downpipe was an exact fit, VERY well constructed.
Don't bother with the VRSF pipe. It's cheaper, but not as well made, missing the stock bracket (!) and I couldn't even get it. Out of stock with no visibility into when they would have more.
On the ER site, it doesn't specifically call out the M40i model, but it's the same B58 engine on those listed.

https://x-ph.com/evolution-racewerks...0-x3-downpipe/

Thank you very much for this information. Very useful as I am already thinking about things to do to my x3 M40i on order.

Few questions:
How about the drone on long journeys and how is the overall noise in comfort mode ?

The reason I ask is because I need to visit ( and take along) customers and business partners and I would like to keep it sporty but civilised.

Maybe some video ?
Thx.

[dmicah]

How hard is the install for these downpipes? Are there any online instructions to take a peek at?

[freshxdough]

Originally Posted by dmicah

How hard is the install for these downpipes? Are there any online instructions to take a peek at?

Just installed VRSF B58 340i catted downpipe on 2020 X3 M40i. For my particular instance The angle at the end of the flexible elbow to the exhaust pipe is the main issue but it can still be dealt with. It is about 1* off I'd say. Best bet is to mount onto turbo with V Band loosely, then clock the cat until you get the best possible angle. Then force the pipe into the cat and use the exhaust pipe as a bit of leverage to kind of work the flexible elbow. Even still, getting the mount on the transmission to the exhaust pipe was extremely difficult and after doing so you can see that the rubber mount is being extremely pulled due to the angle

Not sure if any other products will give you this issue, but it is what I had to deal with the VRSF catted downpipe.

Noise is great. Cold start is louder, more rowdy, little more raspy but all good. Car from the inside driving normally sounds the tiniest bit louder, nothing very noticeable. Upshifts in Sport plus are insane with the pops. Burbles and pops also more noticeable now too. When in sport plus and under hard acceleration you can hear the flow through the pipe, kind of like how with cold air intakes you can hear the air flow. Daily driving is perfectly fine, you would barely ever notice the difference. Tiniest bit of smell but still brand new (installed 3 days ago, and already my CEL came on, figured with this 200cel cat. I'll delete codes in a few days and see if it comes back after a little more miles on it).

Overall I'm happy with it.

[freshxdough]

VRSF catted downpipe

[freshxdough]

Originally Posted by dmicah

How hard is the install for these downpipes? Are there any online instructions to take a peek at?

If you have a product that fits 100% perfect and you also have access to a lift, I'd say an hour and you could be done. All you really need is a 13mm socket and a 22mm wrench and some patience.

[dmicah]

A) Do you ever drive this car? The underside is immaculate!
B) It's clearly an optical illusion, but in the comparison photo, the OEM dp looks smaller in length. It's not an optical illusion that it's smaller in width!

Is the OEM DP mild steel or stainless?

[freshxdough]

Originally Posted by dmicah

A) Do you ever drive this car? The underside is immaculate!
B) It's clearly an optical illusion, but in the comparison photo, the OEM dp looks smaller in length. It's not an optical illusion that it's smaller in width!

Is the OEM DP mild steel or stainless?

Originally Posted by dmicah

A) Do you ever drive this car? The underside is immaculate!
B) It's clearly an optical illusion, but in the comparison photo, the OEM dp looks smaller in length. It's not an optical illusion that it's smaller in width!

Is the OEM DP mild steel or stainless?

I have 4000 miles and I live in California

I believe it is stainless steel. I would check VRSF website though.

You can see in this photo the mount on the transmission is getting pushed toward the passenger side

[dmicah]

Originally Posted by freshxdough

I believe it is stainless steel. I would check VRSF website though.

VRSF is definitely 304 grade stainless per the website (you can pretty much see it in your pictures as well). I was actually asking about the BMW downpipe. Someone earlier in the thread made a remark about worrying that the aftermarket part wouldn't last. I would think that if the part is stainless and the cat is of high quality, it would outlast an OEM mild steel part. From your pics, however, the OEM part looks stainlessish.

[freshxdough]

Originally Posted by dmicah

VRSF is definitely 304 grade stainless per the website (you can pretty much see it in your pictures as well). I was actually asking about the BMW downpipe. Someone earlier in the thread made a remark about worrying that the aftermarket part wouldn't last. I would think that if the part is stainless and the cat is of high quality, it would outlast an OEM mild steel part. From your pics the OEM part looks stainlessish/

If I blow out the catted downpipe I'll just get another. Lol

Wouldn't wana blow out the factory pipe

[Torinalth]

Originally Posted by freshxdough

Just installed VRSF B58 340i catted downpipe on 2020 X3 M40i. For my particular instance The angle at the end of the flexible elbow to the exhaust pipe is the main issue but it can still be dealt with. It is about 1* off I'd say.... ...Even still, getting the mount on the transmission to the exhaust pipe was extremely difficult and after doing so you can see that the rubber mount is being extremely pulled due to the angle

Not sure if any other products will give you this issue, but it is what I had to deal with the VRSF catted downpipe.

I've read this several times about VRSF mostly in the 3 series forum though (more modders). VRSF may be good or may be off, but you get it a lot cheaper. I went with the ER catted pipe when it was on sale for black friday, It'l go on in an upcoming weekend that is not in the 30s, and see if I have better fitment or similar.

there is a good writeup and a supplemental writeup in the F3x 3 series forum. just search downpipe install and i think it was on page 2....

[suby01]

Originally Posted by Torinalth

I've read this several times about VRSF mostly in the 3 series forum though (more modders). VRSF may be good or may be off, but you get it a lot cheaper. I went with the ER catted pipe when it was on sale for black friday, It'l go on in an upcoming weekend that is not in the 30s, and see if I have better fitment or similar.

there is a good writeup and a supplemental writeup in the F3x 3 series forum. just search downpipe install and i think it was on page 2....

Awesome. Keep us posted. Im going to be the first one to ask for a video warmed up if you can.

[suby01]

Bump anyone else made a DP purchase? Any brand preference, recommendations besides what we already have mentioned above? TIA

[suby01]

Are you guys getting CEL after installing the catted DP and no tune?

[freshxdough]

Originally Posted by suby01

Are you guys getting CEL after installing the catted DP and no tune?

I have a CEL after one day of clearing faults and going for a drive. Sets pretty quick. I don't think this 200cel VRSF Catted Downpipe will ever not throw a CEL.

I just check faults every other week or so to make sure I don't have any other faults hidden behind my CEL lol

[freshxdough]

Originally Posted by suby01

Are you guys getting CEL after installing the catted DP and no tune?

I have a CEL after one day of clearing faults and going for a drive. Sets pretty quick. I don't think this 200cel VRSF Catted Downpipe will ever not throw a CEL.

I just check faults every other week or so to make sure I don't have any other faults hidden behind my CEL lol

[Torinalth]

same, ER catted pipe is 200cel and throws a code after less than 10 min driving. I have a spacer for the sensor but wanted to try without it first. I'll try the spacer when its warmer out. heard 300cel pipes work well, and there is another company that someone advertised that was guaranteed not to trigger the fault, it was on this forum.... maybe by RGsport shop? been a couple months. Either way, love my ER pipe.

One note on install, I'd personally get another Vband clamp and jbweld the bolt to the collar, I just barely got it tight enough before the head started spinning from the vband clamp ring.

[suby01]

Originally Posted by freshxdough

I have a CEL after one day of clearing faults and going for a drive. Sets pretty quick. I don't think this 200cel VRSF Catted Downpipe will ever not throw a CEL.

I just check faults every other week or so to make sure I don't have any other faults hidden behind my CEL lol

Originally Posted by Torinalth

same, ER catted pipe is 200cel and throws a code after less than 10 min driving. I have a spacer for the sensor but wanted to try without it first. I'll try the spacer when its warmer out. heard 300cel pipes work well, and there is another company that someone advertised that was guaranteed not to trigger the fault, it was on this forum.... maybe by RGsport shop? been a couple months. Either way, love my ER pipe.

One note on install, I'd personally get another Vband clamp and jbweld the bolt to the collar, I just barely got it tight enough before the head started spinning from the vband clamp ring.

That was going to to be my next question. Did you guys consider O2 sensor spacers?