[Budi]

Going to go stage 1 this summer

I'll be doing:
Bootmod3 93 octane tune
Evolution Racewerks CP bc I hear vrsf and AA have fitment issues
Downpipe

And that's it, don't want any of the problems that come with more power. I'm learning towards fabspeed catless bc it sounds good and seems to get good reviews, pretty pricey though compared to others like Vrsf/aa/wagner etc. Who would you recommend?

[mike@x-ph.com]

Define best, if you are looking for a downpipe with no CEL get Fabspeed catted or Active Autowerke catted.

All proven brands will fit and perform the same

[Budi]

I'd rather go catless since a tune will clear the cel. If they all are all the same why is the fabspeed catless so much more than vrsf catless? I'd assume fabspeed is better fit and provides more power. 2014 Auto RWD btw

Also I had a fbo 335i with a catless dp and all I remember smelling was gas which I kinda liked. Is it the same for the m235i?

[Liandri]

Originally Posted by mike@x-ph.com

Define best, if you are looking for a downpipe with no CEL get Fabspeed catted or Active Autowerke catted.

All proven brands will fit and perform the same

2 weeks now with Actives new catted downpipe and no cel, no pending codes either

[mike@x-ph.com]

Originally Posted by Liandri

2 weeks now with Actives new catted downpipe and no cel, no pending codes either

[4Hockey4]

Originally Posted by Liandri

2 weeks now with Actives new catted downpipe and no cel, no pending codes either

How was the fit ? You do or did shop have issues ? I was leaning that way, Fabspeed like 40% more and I'm ok with cell difference in 2.

Is that all you did with chargepipe ? Any issue with upper RPM torque ?

[Liandri]

Originally Posted by 4Hockey4

How was the fit ? You do or did shop have issues ? I was leaning that way, Fabspeed like 40% more and I'm ok with cell difference in 2.

Is that all you did with chargepipe ? Any issue with upper RPM torque ?

The fit was good, I did it, but I did have to bend the mount bracket around a little bit to get a bolt through.

I did the AA muffler as well. No issue with power, doesn't feel different than stock, but don't expect it to without a tune.

[The_otherM235i]

I went with the VRSF catless downpipe a month ago and it took 40 minutes for me to put it in. Great construction and great reviews. Been using it with a stage 2 plus tune and it's been perfect.

[Budi]

Originally Posted by The_otherM235i

I went with the VRSF catless downpipe a month ago and it took 40 minutes for me to put it in. Great construction and great reviews. Been using it with a stage 2 plus tune and it's been perfect.

How's the smell and what tuning company did you go with?

[4Hockey4]

Originally Posted by Liandri

The fit was good, I did it, but I did have to bend the mount bracket around a little bit to get a bolt through.

I did the AA muffler as well. No issue with power, doesn't feel different than stock, but don't expect it to without a tune.

awesome thx - think going AA catted with ER chargepipe....then ER intercooler and MHD stage 1...gonna have to boost tires me thinks...RFT wont work with dat lol

[mike@x-ph.com]

Originally Posted by The_otherM235i

I went with the VRSF catless downpipe a month ago and it took 40 minutes for me to put it in. Great construction and great reviews. Been using it with a stage 2 plus tune and it's been perfect.

[4Hockey4]

Has anyone added the protective heat paint to these ? as they come in raw and most not stainless steel. Or non issue ?

Thoughts ?

[The_otherM235i]

Originally Posted by 4Hockey4

Has anyone added the protective heat paint to these ? as they come in raw and most not stainless steel. Or non issue ?

Thoughts ?

Do you mean ceramic coatings like VRSF sells? Lots of people get them done, my buddy on his e92 335i has his downpipe coated and it definitely helps with heat vs non coated

[mike@x-ph.com]

Originally Posted by The_otherM235i

Do you mean ceramic coatings like VRSF sells? Lots of people get them done, my buddy on his e92 335i has his downpipe coated and it definitely helps with heat vs non coated

Ceramic coating helps with heat a lot, it's very important for the users who constantly tracks their cars

[The_otherM235i]

Originally Posted by mike@x-ph.com

Ceramic coating helps with heat a lot, it's very important for the users who constantly tracks their cars

I read something like it gives you marginal gains in heat protection but that's just a quick read

[mike@x-ph.com]

Originally Posted by The_otherM235i

I read something like it gives you marginal gains in heat protection but that's just a quick read

I have not seen any before and after data, if you decide to do it please share your results

[XutvJet]

In my biased opinion, I think the HJS Euro 6 300 cell catted downpipe is the best one out there I've had mine for over 2 years now. No CEL. No issues. Looks OEM. OEM like build quality. Two 150 cell cats rather than one single 200 or 300 cell cat like used on other DP makes. The OEM DP uses two 300 cell cats. The best cats out there (HJS). AMAZING sound, lots more burbles. Semi-exotic, thick, and muscular sound.

https://www.fabspeed.com/bmw-m235i-f...tted-downpipe/

https://f87.bimmerpost.com/forums/sh....php?t=1339166

[mike@x-ph.com]

Originally Posted by XutvJet

In my biased opinion, I think the HJS Euro 6 300 cell catted downpipe is the best one out there I've had mine for over 2 years now. No CEL. No issues. Looks OEM. OEM like build quality. Two 150 cell cats rather than one single 200 or 300 cell cat like used on other DP makes. The OEM DP uses two 300 cell cats. The best cats out there (HJS). AMAZING sound, lots more burbles. Semi-exotic, thick, and muscular sound.

https://www.fabspeed.com/bmw-m235i-f...tted-downpipe/

https://f87.bimmerpost.com/forums/sh....php?t=1339166