[bonomo335i]

Just wondering if anyone has installed these to replace the oem plastic ones? if so how did they fit and did you see a difference. thanks!

https://www.ebay.com/itm/For-N54-E82...t/332886778711

[james008]

I bought from mmp and modified the front inlet to go in place of the vacuum canisters. Very happy with how it came out. I have a thread somewhere about it. Not an easy task to get the rest plastic one off I only did it because the trans was out for the clutch.

[mweisdorfer]

Originally Posted by bonomo335i

Just wondering if anyone has installed these to replace the oem plastic ones? if so how did they fit and did you see a difference. thanks!

https://www.ebay.com/itm/For-N54-E82...t/332886778711

Look into MMP. Best bang for your buck. Quality inlets and a great price. The rear will be a PITA.

Follow the video & you won't have too many issues.

[tisdrew]

+1 for MMP

[nissubaru]

I wouldn't mess with an ebay/China set just for fitment concern reasons. The rear turbo is a bitch and a half

[JDang]

It depends on how modified your car is.

Inlets is only taken advantage of in a custom tune, you can't use any of the OTS maps to utilize everything on the table.

The rear inlet is hard to install no matter what brand you side with, the front inlet isn't so bad.

Go with VRSF, MMP, or even VTT Silicone Inlets, they're all pretty much the same and can withstand the heat produced in the engine bay.

[LMB335IS]

While the description of the inlets says VRSF, they don't look like the inlets that VRSF has pictured on their website and the VRSF site has them for the same price. The smart thing to do would be to buy them from a reputable vendor and have some support if things don't go according to plan. http://www.vr-speed.com/bmw/e90-e91-...35i-1m-z4.html

I've had RB stock location inlets in for about 3 yrs with no issues. Install is a challenge but certainly not impossible. Read the DIYs and have a really good tool set handy.

[mweisdorfer]

You have to take the downpipes / cats out, in order to make room, in order to do the rear inlet.

So, you should order new flange gaskets, bolts & nuts. Maybe even new turbo seals too depending on how many miles you have. If over 100k, that's a good move. They aren't expensive at all.

If you live in the mid-west, NE or any state that sees harsh winters and uses salt on the roads, during the winter months, taking the oem cats off will be a PITA. Especially, if they have been on there for any length of time. Plan on using a sawzall with a Diablo carbon tipped blade & a dremmel to cut the bolts off.

You might even have I use a torch with some yellow gas, in order to heat up the remainder of the bolt lodged inside the holes of the exhaust flange. Heating it up will be the only way you can pound out the remaining part of the cut off bolt with a min-sledge & and metal punch.

If you are trying to be proactive going forward on the exhaust flange & downpipes/ cats, I'd get some grade 8 hardened bolts & nuts & slather them up in a Nickel based anti-seize when you put the exhaust back into place. You shouldn't have an issue with rust / and getting the nuts off going forward.

[bonomo335i]

awesome info . i do plan on doing a lot to the engine. eventually doing a single turbo set up. i havent messed with a car in a couple years since i sold my 240sx . so im getting a itchhh lol here is a pic of my old car.