mazekid15

Just did a couple pulls with the work I have done. Running 15 PSI on PROcede Map with AR catless downpipes, dual cone, B&B exhaust. I have an XI with a 6 Speed so my launch is babied

mazekid15

Persian_535i

Nice, both are with windows up right? You should do another one at lower speeds around 2k-2.5k rpm, I'm curious to see how much the B&B drones.

mazekid15

Its very light. Trust me when your cruising its very quiet. Its an impressive exhaust for the money. And honestly my i phone won't do justice its just not going to pick up the slight drone. I haven't hit a 1000 miles yet when its suppose to go away.

Windows are open on the 0-60

jmk

Do the AR catless DP's from the 135/335 fit the E60 535s?

mazekid15

No they do not. 535's are custom. and custom means way more $$$ than the 1-335's

jmk

Do the flanges mate up? If yes, then it can't be that bad since you can buy a used 135/335 one, cut it in half and weld in the middle section (overly simplified but you get it).

mazekid15

Trust me. The way there designed. There DIFFERENT then the 135/335. Its not that easy.

jmk

Ok guy, I'm not doubting you! It was just a thought. Do you have a link to the E60 dp's?

aoschadlin

Hey there! I just installed the BB exhaust and have found at highway cruising speed it's not even loud enough to get over the general road noise. But at < 40mph I find it has a drone to it. Not bad enough to interrupt conversations, but it's there. Do you find that as well? I'm still trying to decide if I'm happy with that mild drone or not, but you mention a 1,000 mile mark where it minimizes or goes away? I haven't heard about that. Actually the installer said to expect it to get louder over the next few weeks.

Here's a link to one of the few manufacturers that I found with 535 DPs. ar-design