[katsbimmer]

Switched over to the Euro air box with the K&N filter this weekend ....Thanx Rick4345 for the sale..

[spoiler]

nice bro post a video please I wana hear it.

[katsbimmer]

Originally Posted by spoiler

nice bro post a video please I wana hear it.

Sure but I don't really hear any difference .. Haven't drove it yet though only the wife n she said feels the same..

[Delta0311]

Yeah I got that shit in my car!!!!



Sound wise, it won't make any difference.

[Dr.GumbyM.D.]

Originally Posted by katsbimmer

Sure but I don't really hear any difference .. Haven't drove it yet though only the wife n she said feels the same..

I've been wanting to do this mod too, and with the money you save vs the BMW Performance Intake, it's not terribly expensive as far as e90 mods go, but I haven't yet because my sense is that it really won't make a huge difference. Even with a tune and exhaust, I suspect it will make a minimal difference to overall performance. And it costs around the same as doing a 3-stage intake or a flash... so my money is going to go to one of those first (or both!)

Thanks for sharing the pics though. Looks sleek, and I hope you feel more out of it than your wife does!

[carlos916]

Originally Posted by Delta0311

Sound wise, it won't make any difference.

[pinoye90]

Originally Posted by Pinoy328I

when you installed it did you remove the MAF sensor the it came with or did you use it????

nevermind i called ECS and they confirmed that the one it comes with is off a 335 bmw. the reason why its on there is its directly from BMW which is why theres is no intstructions or why its not removed. Thank you confirmed!!

[katsbimmer]

Originally Posted by Pinoy328I

nevermind i called ECS and they confirmed that the one it comes with is off a 335 bmw. the reason why its on there is its directly from BMW which is why theres is no intstructions or why its not removed. Thank you confirmed!!

Picked mine up from another member here , so he had already removed the Euro one.. I just installed mine in its place....

[bucket328]

Originally Posted by Dr.GumbyM.D.

I've been wanting to do this mod too, and with the money you save vs the BMW Performance Intake, it's not terribly expensive as far as e90 mods go, but I haven't yet because my sense is that it really won't make a huge difference. Even with a tune and exhaust, I suspect it will make a minimal difference to overall performance. And it costs around the same as doing a 3-stage intake or a flash... so my money is going to go to one of those first (or both!)

Thanks for sharing the pics though. Looks sleek, and I hope you feel more out of it than your wife does!

If your looking for one that'll give you a difference in performance and is well priced, I'd go with the Dinan Intake. I installed it on mine last year. Very happy with it, and under load it makes a great sound!!!

[katsbimmer]

Originally Posted by bucket328

If your looking for one that'll give you a difference in performance and is well priced, I'd go with the Dinan Intake. I installed it on mine last year. Very happy with it, and under load it makes a great sound!!!

I looked on there website and didn't see one listed for the 328i only and air filter replacement ..?

[Neutrino45]

Originally Posted by Dr.GumbyM.D.

I've been wanting to do this mod too, and with the money you save vs the BMW Performance Intake, it's not terribly expensive as far as e90 mods go, but I haven't yet because my sense is that it really won't make a huge difference. Even with a tune and exhaust, I suspect it will make a minimal difference to overall performance. And it costs around the same as doing a 3-stage intake or a flash... so my money is going to go to one of those first (or both!)

Thanks for sharing the pics though. Looks sleek, and I hope you feel more out of it than your wife does!

3 stage intake is off of a U.S. 330i and it's different from the Euro intake, right?

[Wrngway]

Originally Posted by Neutrino45

3 stage intake is off of a U.S. 330i and it's different from the Euro intake, right?

No, the euro intake replaces your stock airbox. It feeds air to the intake manifold before entering the engine. The 3-stage intake is the intake manifold. If you look at your engine compartment and follow the path of the air, you'll see ducting coming from near the radiator to the airbox with filter and then through a duct to the intake manifold.

N52 328i's have a single stage intake manifold. N51 cars (labeled as SULEV under the hood) already have the 3 stage intake manifold. It incorporates a series of valves directing the air flow depending on engine rpm. The 3 stage intake was also available on the 2006 330i in the U.S..

[Hooy]

I have a european MAF sensor if anyone wants to buy it.

[Delta0311]

Originally Posted by Hooy

I have a european MAF sensor if anyone wants to buy it.

So do I, although it's useless for anyone with a US spec car. Try to post it up on the UK forum.

[pinoye90]

I was just researching the other night and came up with an idea has anyone ever tried or looking into combining the DINAN ram intake for the n52 with the euro air box. that combo would be sick and should result in reasonable gains.

[katsbimmer]

Originally Posted by Pinoy328I

I was just researching the other night and came up with an idea has anyone ever tried or looking into combining the DINAN ram intake for the n52 with the euro air box. that combo would be sick and should result in reasonable gains.

Hmmmm???

[Dr.GumbyM.D.]

Originally Posted by Pinoy328I

I was just researching the other night and came up with an idea has anyone ever tried or looking into combining the DINAN ram intake for the n52 with the euro air box. that combo would be sick and should result in reasonable gains.

Yes, and no.

It's been done. I remember seeing a thread about it (well, not using the dinan kit, but someone making a direct CAI from the front bumper, through the brake duct vent), and it sounded like it was pretty much the same as the normal intake performance wise.

I recommend searching a bit. I know I came upon it once upon a time, but who the heck knows where/when that was....

[dangeris]

Originally Posted by Wrngway

N52 328i's have a single stage intake manifold. N51 cars (labeled as SULEV under the hood) already have the 3 stage intake manifold. It incorporates a series of valves directing the air flow depending on engine rpm. The 3 stage intake was also available on the 2006 330i in the U.S..

Not according to this...N52 and N52K came with a 3 stage..The N51 came with a single stage ...

[jc5988]

Originally Posted by dangeris

Not according to this...N52 and N52K came with a 3 stage..The N51 came with a single stage ...

US N51 does came with DISA, the chart i think is for euro spec which doesnt have 3 stage.

[Wrngway]

Originally Posted by dangeris

Not according to this...N52 and N52K came with a 3 stage..The N51 came with a single stage ...

Yeah, I've seen that chart also. After checking under my hood though, I can see the SULEV sticker and the DISA motors on the intake manifold. It looks just like this...



Here's another view...

[Xpander]

Useful thread. My Bentley's service manual is not very clear on this.

Looks like I have the N51 SULEV engine since I live in hippiefornia. After checking the engine serial number under the intake manifold, it reads: N51B30A. And there are some SULEV stickers under the hood.

So I guess this engine has the three stage intake manifold based on what I have read here so far.

So what's the difference between the N51 (328i's) and the high output N52 (330i's)? In other words how come the 330's are able to crank out another 25 hp and 20 lb-ft of torque?

Is it because the N51 has:

1. lower compression ratio
2. more restrictive exhaust
3. 330i's have a different tune?
4. anything else?

Please don't flame me for these stupid questions but I'm really curious about how different the N51 is from the high output N52.

Thanks

[nycbr]

Originally Posted by Xpander

Useful thread. My Bentley's service manual is not very clear on this.

Looks like I have the N51 SULEV engine since I live in hippiefornia. After checking the engine serial number under the intake manifold, it reads: N51B30A. And there are some SULEV stickers under the hood.

So I guess this engine has the three stage intake manifold based on what I have read here so far.

So what's the difference between the N51 (328i's) and the high output N52 (330i's)? In other words how come the 330's are able to crank out another 25 hp and 20 lb-ft of torque?

Is it because the N51 has:

1. lower compression ratio
2. more restrictive exhaust
3. 330i's have a different tune?
4. anything else?

Please don't flame me for these stupid questions but I'm really curious about how different the N51 is from the high output N52.

Thanks

While the things you mentioned will effect HP, I don't think anyone real knows the exact HP difference bet the 330i and a 328i with the N51 engine. Perhaps a search for dyno results of each in stock form can be found on the internet for comparison.