K&N 57i induction kit (worth it or not?)

[Aero1]

I have been chatting with a few people I know about fitting a kit and opinion is very much divided. Just wanted to know if it's worth splashing the £60 on a M20B20, will I get anything for my money, the car is very standard.

[ross_jsy]

You will get nothing, standard airbox is well designed.

[daimlerman]

Well established that engines run better on cool air,standard box takes it's feed from behind the grille/l/h headlight.Cone filter will take air from within the engine bay.

You might,just,gain 1bhp from a K@N panel filter....

[mcbonio]

Total waste of time mate, it will do nothing for your car. Only a heavily tuned and turbo'd engine will slightly benefit from an induction kit.

Just get a very good quality panel filter.

[Daryll]

The only aftermarket air filter that has shown any improvement in airflow is the BNC canister air filter but even this is marginal IIRC.

The K&N just sucks in the warm air under the bonnet. Save your money and get a BBTB if your looking for a cheaper route for an increase in BHP or spend a bit more and get a 6 branch/schrick cam.

[Grrrmachine]

On an M20B20, there's nothing you can do that doesn't cost pounds. An air filter is especially pointless.

[sajad09]

If you really want one I have a secondhand one in my garage, but it's for a 325i, I'm pretty sure that you can change the maf sensor over from your air box..

Pm me if your interested

[pacerpete]

I have a good used K+N panel filter for £20 , you can collect it when you get the wiper motor !

[Aero1]

Thanks for the responses, some respected names saying they are a waste of time means, on this occasion I won't be investing, so K&N your fired.

Pete, I managed to get my motor to work in the end. How long it will stay that way...we will have to see.
I might take the panel filter off you though if you give me a discount

[G-Bear]

When I bought my e30 (m42) it came with an induction cone. I put the standard box back in and the engine ran so much smoother. Didn't notice any loss in power..

[George]

As above, panel filter if you're really keen for an upgrade.

Otherwise OEM is the way to go.

[harry_p]

the only thing you'll gain for your £60 is a lot more induction noise.

[hennared323i]

The only aftermarket air filter that has shown any improvement in airflow is the BNC canister air filter but even this is marginal IIRC.

The K&N just sucks in the warm air under the bonnet. Save your money and get a BBTB if your looking for a cheaper route for an increase in BHP or spend a bit more and get a 6 branch/schrick cam.

Or get a new chip from Speedtouch etc

[Aero1]

I fitted a Speedtouch mild chip a couple of months ago and I was impressed, that's how this all started with the induction kit thing, I was talking to a mate about fitting the chip and he told me that an induction kit was the way to go, he's a bit of a boy racer with a stripped out Clio Cup. But after reading all the post against, I definitely wont fit one.

[Topblag]

I have a good used K+N panel filter for £20 , you can collect it when you get the wiper motor !

This, and make sure you clean it when you would be replacing a paper filter.

Simple.

[verde]

The only way to make a small gain is if u remove a headlight and have the filter getting air rammed in like that. Otherwise u get a bit better response but no power gains. I didnt really believe people til I saw mighty car mods doing a mythbust on airfilters