Upgrading to 5" or 7" FMIC for Hot Climate with FBO

[El-Tuckro]

First time posting here. I've recently purchased a 135i, and live in North Queensland Australia. Car comes with the below bolt-ons:

VRSF Catless Downpipes

VRSF Chargepipe

Burger Motorsports Dual Cone Intakes

Turbosmart BOV

Team M Factory Helical LSD

MHD Stage 2 Tune

I feel the next step would be a FMIC, however I am trying to think whether a 5" or 7" would be better? I won't be going past FBO at this stage so I figured a 7.5" wouldn't be necessary. Am I on the right track here? I live in a hot climate (Townsville, North Queensland, AU) so anything would be better than the stock intercooler. However I don't want to do too much destructive trimming.

Dyno results from the previous owner came out at 280kw atrw.

What are you thoughts on this mod just for daily driving purposes? I won't be tracking or dragging this car. Everything else I am happy with.

[G3min1]

TBH I wouldn't be running stage 2 without a FMIC in the first place. But with that being said, it all depends on how well do you know yourself. I for one bought the 5" stepped intercooler thinking I wasn't going to track my car or anything like that, which i haven't. However I will be buying the 7" FMIC here any day now.

Your question has been asked many times before. The general consensus is buy the best intercooler you can afford. Also a lot of people say to just go with the 7" and call it a day. You want low IAT's and the 7" will help immensely in that area.

https://www.e90post.com/forums/showthread.php?t=1666581
https://www.e90post.com/forums/showthread.php?t=1054107

[El-Tuckro]

Originally Posted by G3min1

TBH I wouldn't be running stage 2 without a FMIC in the first place. But with that being said, it all depends on how well do you know yourself. I for one bought the 5" stepped intercooler thinking I wasn't going to track my car or anything like that, which i haven't. However I will be buying the 7" FMIC here any day now.

Your question has been asked many times before. The general consensus is buy the best intercooler you can afford. Also a lot of people say to just go with the 7" and call it a day. You want low IAT's and the 7" will help immensely in that area.

https://www.e90post.com/forums/showthread.php?t=1666581
https://www.e90post.com/forums/showthread.php?t=1054107

Thanks man, this makes it quite simple. I think I'm going to go 7".

[Aus335iguy]

Originally Posted by El-Tuckro

Thanks man, this makes it quite simple. I think I'm going to go 7".

Get rid of the dual come inlets as well.
They work ok but basically youre sucking in hot air.