[Lockman_321]

Hi Guys,

I was happy with the speed of my car etc and wasn't planning to do any engine type upgrades but I have found this:

http://mosselmanturbo.com/remapping-...25i-e90-218hp/

Has anyone done this to their car? i cant believe you can get 272bhp out of a 325i which is 218bhp. if anyone has this how are you finding it? Can you feel the difference straight away? Very tempted by this!

[djgandy]

It's £1200 though + fitting. The 325i block is the same as the 330i. This upgrade has been done by a few. It's not bad for the money, but at the same time, you could just get a 330i.

[Lockman_321]

Originally Posted by djgandy

It's £1200 though + fitting. The 325i block is the same as the 330i. This upgrade has been done by a few. It's not bad for the money, but at the same time, you could just get a 330i.

Ahh ok. But I have a 325i so rather than source a 330i and do all the upgrades to it I could just potentially get this. for the price it sounds like a decent option.

[djgandy]

Originally Posted by Lockman_321

Ahh ok. But I have a 325i so rather than source a 330i and do all the upgrades to it I could just potentially get this. for the price it sounds like a decent option.

OK. Looks like you've got a wrap, so trading like for like is going to be unlikely!
But yeah in most cases it's better to just swallow the pill and swap. The 330i has bigger brakes I think too and there will most likely be more than that to add to the list.

[Phil325i]

I looked at this, but honestly thought it was overpriced. You will also have the possible problem of DISA flaps rattling and/or disintegrating (the 325i doesn't have these). And as you said in your first post OP, there's not much wrong with the 325i engine anyway.

[Ao1]

I did it and trust me you will notice the difference. The 325i is just a nobbled 330i.

[djgandy]

Originally Posted by Broken_Gearbox

Bar the N52B25 (Pre-LCI) which is a true 2.5 stifled by 0.5 less capacity.

Of course. This is for the N53 engine though that was only ever fitted in its 3.0l form for the 325i.

[Lockman_321]

Originally Posted by djgandy

OK. Looks like you've got a wrap, so trading like for like is going to be unlikely!
But yeah in most cases it's better to just swallow the pill and swap. The 330i has bigger brakes I think too and there will most likely be more than that to add to the list.

Yeah I have had a wrap and have done a few decent upgrades to it. I never planned on doing any engine type stuff as I would have sourced a 335i from the start but after running across this on google and seeing this it seems like a no brainer to based on the power difference! and there i thought i was finished with modding.

BTW what colour is your car is that the same wrap as mine or a painted blue. I cant tell by the avatar!

Originally Posted by Phil325i

I looked at this, but honestly thought it was overpriced. You will also have the possible problem of DISA flaps rattling and/or disintegrating (the 325i doesn't have these). And as you said in your first post OP, there's not much wrong with the 325i engine anyway.

Yeah i completely agree with this. And if i didnt accidently stumble over this I would be happy to just keep it as it is. But based on the stats it seems like it is a great upgrade choice

Originally Posted by Ao1

I did it and trust me you will notice the difference. The 325i is just a nobbled 330i.

Ahh really! This is what i like to hear! Where did you get it done mate and how long did they need your car for? Do you think it is worth it based on the cost. It just seems to good to be true! Also how much better is fuel economy after this?

Originally Posted by Broken_Gearbox

Bar the N52B25 (Pre-LCI) which is a true 2.5 stifled by 0.5 less capacity.

Just to double check. My car is a E93 pre lci but it says I have an N53 based on my vin. Is there a chance thats not correct? As i know this mod is only available for N53 engines

[Phil325i]

Originally Posted by Ao1

The 325i is just a nobbled 330i.

True, but there's also a purity about the 325i in these days of turbocharging and digital everything, to have just a straight inlet manifold and, other than VANOS, an 'analogue' engine is nice (IMHO). And there aren't many 3 litre engines that will give 40+ on a run and a range of over 500 miles to a tank. A true GT car...

But then I am hopelessly biased!

[Lockman_321]

Originally Posted by Broken_Gearbox

Not thread jacking but sometimes I wish I had the 3.0...

What car do you have mate? you might have the 3.0 litre. As mine is an 07 but bmw said i have an n53 based on the vin.

[Nickos]

I read about this when i was looking to buy one and the manifolds and disa valve can be bought on fleabay, fitted by yourself then any remapper can then map it.

http://www.e90post.com/forums/showthread.php?t=372973

- The above thread also has a good DIY link!

[Ao1]

Originally Posted by Lockman_321

Ahh really! This is what i like to hear! Where did you get it done mate and how long did they need your car for? Do you think it is worth it based on the cost. It just seems to good to be true! Also how much better is fuel economy after this?

I did a thread on this upgrade. http://www.e90post.com/forums/showthread.php?t=974491

It took MStyle most of the day due to the manifold swap over and then waiting for car to be hooked up to Mosselman for the remap, which is logged to the VIN. You have an option to buy the remap on a USB in case it gets wiped by an update. If you don't get this you can go in once for free to get it reapplied if required. The manifold components replaced are all OEM from a 330i.

It is expensive, but you will defiantly notice a difference in power. I did not notice a drop in fuel consumption. Its runs more efficiently as it is not nobbled, which offsets the fuel consumption when you floor it. If you want to keep the car, but want more poke I'd say it is worth it as you will loose more by trading in your car. The good thing is you are not stressing the car by tuning it. You are simply un-nobbling it to release the power it should have had in the first place. It was nobbled for German tax banding.

[djgandy]

Good point Nickos

- Manifold on leebman http://www.leebmann24.de/ansaugleitu...617559523.html
500 euros if you say you are e90post member.

I think around £700-800 total for all the parts if you shop around and buy from the right places.

[Lockman_321]

Originally Posted by Nickos

I read about this when i was looking to buy one and the manifolds and disa valve can be bought on fleabay, fitted by yourself then any remapper can then map it.

http://www.e90post.com/forums/showthread.php?t=372973

- The above thread also has a good DIY link!

Ahh thanks for this! will look into it.

Originally Posted by Ao1

I did a thread on this upgrade. http://www.e90post.com/forums/showthread.php?t=974491

It took MStyle most of the day due to the manifold swap over and then waiting for car to be hooked up to Mosselman for the remap, which is logged to the VIN. You have an option to buy the remap on a USB in case it gets wiped by an update. If you don't get this you can go in once for free to get it reapplied if required. The manifold components replaced are all OEM from a 330i.

It is expensive, but you will defiantly notice a difference in power. I did not notice a drop in fuel consumption. Its runs more efficiently as it is not nobbled, which offsets the fuel consumption when you floor it. If you want to keep the car, but want more poke I'd say it is worth it as you will loose more by trading in your car. The good thing is you are not stressing the car by tuning it. You are simply un-nobbling it to release the power it should have had in the first place. It was nobbled for German tax banding.

This is perfect. Just what I wanted to hear. It is definitely worth doing. Thanks mate! Ive emailed both mstyle and mosselman directly so I'll wait to hear back from them.

Originally Posted by djgandy

Good point Nickos

- Manifold on leebman http://www.leebmann24.de/ansaugleitu...617559523.html
500 euros if you say you are e90post member.

I think around £700-800 total for all the parts if you shop around and buy from the right places.

So do you think its worth shopping for all the parts fitting, then getting the coding done separately?

[Aragorn30d]

the question is if mosselman will supply the remap to you if you dont get the kit from them.

The reality is you should be able to flash on the BMW factory software for free, but not came across anyone who has tried that yet.

Could be a pretty cheap conversion if you picked up a used manifold etc.

[Len_Beach]

It might be worth just getting a remap as it looks like the bulk of the gains are in the software.

http://www.more-bhp.com/bmw-3-series...ecu-remap.html

[Phil325i]

Originally Posted by Len_Beach

It might be worth just getting a remap as it looks like the bulk of the gains are in the software.

http://www.more-bhp.com/bmw-3-series...ecu-remap.html

Sorry but I don't believe 40+bhp increase is possible with a re-map alone on a naturally aspirated engine. Just my five penn'orth...

[Len_Beach]

Originally Posted by Phil325i

Sorry but I don't believe 40+bhp increase is possible with a re-map alone on a naturally aspirated engine. Just my five penn'orth...

I wouldn't usually either however it makes an element of sense given that the 325i is a detuned 330i aside from the intake.

I'm not suggesting more-bhp's figures are correct; I just used that site as they're not known as Cowboys.

They claim to get the 325i to 262bhp and the 330i to 282bhp which gives a good benchmark for the effect of the inlet at 20bhp.

Sounds relatively feasible and much cheaper than the Mosselman kit.

[Lockman_321]

Originally Posted by Len_Beach

I wouldn't usually either however it makes an element of sense given that the 325i is a detuned 330i aside from the intake.

I'm not suggesting more-bhp's figures are correct; I just used that site as they're not known as Cowboys.

They claim to get the 325i to 262bhp and the 330i to 282bhp which gives a good benchmark for the effect of the inlet at 20bhp.

Sounds relatively feasible and much cheaper than the Mosselman kit.

Thanks for this. It is definitely much cheaper but i dont know how comfortable i feel about a remap alone without the upgraded 330i parts. I dont know much about this so i could be worried for no reason. Do you know anyone who has just done the remap on the 325i?

[Ao1]

I’m struggling to see how More can get that level of performance with only a remap, but if they can it’s a much more cost effective upgrade.
Ask to see a Dyno sheet of the before and after and it should become much clearer.
On the Mosselman map you will see a performance kick just over 4.5k revs. This can bee seen on their Dyno sheet on their web site

[Len_Beach]

It seems that not all tuners list the N53 as a separate engine therefore most only show modest gains.

There are a few more here showing healthy gains on the N53 with just a remap.

https://m.facebook.com/permalink.php...20550714809090

http://www.promaptuning.co.uk/vehicl...g/?vehicle=676

https://www.celtictuning.co.uk/servi...e-1#t3-content

http://www.map-tech.co.uk/gains/bmw.htm

[Ao1]

Originally Posted by Len_Beach

It seems that not all tuners list the N53 as a separate engine therefore most only show modest gains.

There are a few more here showing healthy gains on the N53 with just a remap.

https://m.facebook.com/permalink.php...20550714809090

http://www.promaptuning.co.uk/vehicl...g/?vehicle=676

https://www.celtictuning.co.uk/servi...e-1#t3-content

http://www.map-tech.co.uk/gains/bmw.htm

No sign of a dyno sheet though.