B48 vs B46 Downpipe

arieon69 · 06-20-2021, 07:05 PM

So guys, I have a question.
I was downpipe shopping and each site said B48. Non-US spec is the B48 but they are supposedly the same engine. I ended up buying a VRSF B48 downpipe, without realizing.

Does anyone know immediate difference between the two that would cause fitment issues?

TIA

mike@x-ph.com · 06-21-2021, 09:10 AM

Here are 2 pictures of the MAD downpipes , notice the difference in connection type

B46

B48

f30baik · 06-24-2021, 01:56 AM

Hey,
I have B48 engine on F30, i want to change my downpipe but keep my stock exhaust, which sound better armytrix downpipe or vrsf downpipe?

thx

arieon69 · 06-24-2021, 05:59 AM

Quote:

Originally Posted by gastaki_

Hey,
I have B48 engine on F30, i want to change my downpipe but keep my stock exhaust, which sound better armytrix downpipe or vrsf downpipe?

thx

I wouldn't go all out on this personally. VRSF is a good quality and affordable. I actually need to sell mine. Lol it's brand new. Lmk if you're interested

arieon69 · 06-24-2021, 06:00 AM

Quote:

Originally Posted by mike@x-ph.com

Here are 2 pictures of the MAD downpipes , notice the difference in connection type

B46

B48

I don't see the b46 on x-ph.com. I use to see it in a combo deal I was about to buy. Then poof, it was gone. You guys getting it back?

mike@x-ph.com · 06-24-2021, 08:53 AM

Quote:

Originally Posted by arieon69

I don't see the b46 on x-ph.com. I use to see it in a combo deal I was about to buy. Then poof, it was gone. You guys getting it back?

We don't offer catless downpipes. We offer the B46 and B48 catted downpipes

Info@mad-us.com · 06-24-2021, 11:46 AM

Quote:

Originally Posted by arieon69

I don't see the b46 on x-ph.com. I use to see it in a combo deal I was about to buy. Then poof, it was gone. You guys getting it back?

Hi,

You can buy direct from our website below

parpd7 · 07-17-2021, 06:56 PM

Quote:

Originally Posted by arieon69

So guys, I have a question.
I was downpipe shopping and each site said B48. Non-US spec is the B48 but they are supposedly the same engine. I ended up buying a VRSF B48 downpipe, without realizing.

Does anyone know immediate difference between the two that would cause fitment issues?

TIA

They are the same engine, the B46 has slightly modified cats and airbox because of the stricter emission standards, the engines themselves are identical, shouldn't be any issues as far as mounting those parts

06-20-2021, 07:05 PM	#1
arieon69 New Member 1 Rep 5 Posts Drives: 2018 BMW 330i Join Date: Jan 2016 Location: Little Rock, AR iTrader: (0)	B48 vs B46 Downpipe So guys, I have a question. I was downpipe shopping and each site said B48. Non-US spec is the B48 but they are supposedly the same engine. I ended up buying a VRSF B48 downpipe, without realizing. Does anyone know immediate difference between the two that would cause fitment issues? TIA
	Appreciate 0 Tweet Quote

06-21-2021, 09:10 AM	#2
mike@x-ph.com BimmerPost Supporting Vendor 24186 Rep 190,777 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Here are 2 pictures of the MAD downpipes , notice the difference in connection type B46 B48 __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
	Appreciate 1 VipinLJ1941.50 Quote

06-24-2021, 01:56 AM	#3
f30baik New Member 2 Rep 22 Posts Drives: F30 B48 Join Date: Jun 2021 Location: - iTrader: (0)	armytrix vs vrsf downpipe on stock exhaust Hey, I have B48 engine on F30, i want to change my downpipe but keep my stock exhaust, which sound better armytrix downpipe or vrsf downpipe? thx
	Appreciate 0 Quote