Breathe easy or Breathe OEM?

[Ryan]

I would like to do a few things:
- Improve the Power
- Improve the Noise
- Not spend a 'stupid' amount
- Ensure revert back to OEM is possible (Not drilling extra holes in airbox)
- Not harm the engine (some filters can still let dirt through I hear)

My keen option is for a K&N performance filter, however heard the filter oil could be harmful for the Air Mass Sensor?
Especially as Carparts 4 less is on sale for £35 for K&N

 

[Eddie Zedder]

RamAir do oil free filters, a few members on here use them and they sound awesome.

http://www.ramair-filters.co.uk

 

[andyglym]

K&N57i Induction Unit for me, sounds ace. You can just put the OEM airbox back in.

 

[Ryan]

RamAir do oil free filters, a few members on here use them and they sound awesome.

http://www.ramair-filters.co.uk

Good to know, thanks for the suggestion

 

[t-tony]

I have a Ramair on my Z4 Ryan, awesome sound when you floor the throttle.

Tony.

ps. Totally reversible too.

 

[Redline]

I have a Ramair on my Z4 Ryan, awesome sound when you floor the throttle.
View attachment 68458

Tony.

ps. Totally reversible too.

Can you remember the bore size for the 3L Tony?

 

[5harp3y]

No real proof of the K&N damaging mafs

Loads of information about this on their website

I've built an induction kit for quite a few people in here

 

[t-tony]

Can you remember the bore size for the 3L Tony?

Hi Ian, it's 90mm.

Tony.

 

[Ryan]

No real proof of the K&N damaging mafs

Loads of information about this on their website

I've built an induction kit for quite a few people in here

@5harp3y what’s the cost of said kit?

 

[Redline]

Hi Ian, it's 90mm.

Tony.

Thanks - had 80mm in mind but wasn't sure. Did you get the plastic or the aluminium mount? The metal one looks the biz!

 

[Grumps]

Simota look and sound great, admittedly a bit expense thought.

 

[Ryan]

Simota look and sound great, admittedly a bit expense thought.

It's not too bad at £23.14 but it's only the performance filter replacement, not an induction kit https://www.carparts4less.co.uk/cp4...9973db61374e398866ea5b1c705dee95cd5ed5&000522

 

[Madtoady]

I put this on my 3.0i and extremely happy with the result. It definitely sounds way better and I'm confident it's running smoother and not just a placebo effect

https://www.demon-tweeks.co.uk/perf.../3-0/kn-filters-57i-performance-induction-kit

 

[t-tony]

Thanks - had 80mm in mind but wasn't sure. Did you get the plastic or the aluminium mount? The metal one looks the biz!

I just bought the Cone and Silicone sleeve which came with 2 "Jubilee" clips and made my own mounting bracket Ian.

Tony.

 

[GazHyde]

Can you remember the bore size for the 3L Tony?

The N52 engine intake is different to the M54 @Redline, you need to do more messing around as the MAF holder is built in the air box lid.

You'll need to read my write up here - https://zroadster.org/threads/bmw-z4-3-0si-induction-kit-self-build.15313/

 

[Redline]

The N52 engine intake is different to the M54 @Redline, you need to do more messing around as the MAF holder is built in the air box lid.

You'll need to read my write up here - https://zroadster.org/threads/bmw-z4-3-0si-induction-kit-self-build.15313/

Not being anywhere close I can't just pop outside and take a look. Still got the Vanos solenoids to fix first.

 

[Grumps]

It's not too bad at £23.14 but it's only the performance filter replacement, not an induction kit https://www.carparts4less.co.uk/cp4...9973db61374e398866ea5b1c705dee95cd5ed5&000522

No the whole induction kit not just the filter. @Antm72 You got a pick of yours mate?

 

[Antm72]

There you go @Grumps

 

[Grumps]

View attachment 68469
There you go @Grumps

Thanks mate.

 

[5harp3y]

@5harp3y what’s the cost of said kit?

£120 delivered, check out the link in my signature below