watfordhorn

Has anyone done any dyno runs (before and after) fitting a K & N or similar cone air filter.

Does it actually give any extra power or just make more noise ?

I have a Terzo with Prodrive back box and a K&N and am considering taking the K&N off to make it quieter (boy, I sound old and boring now !).

Does the filter make any difference to fuel consumption as well ?

If it gives more power I will be sure to leave it alone !

Cheers

Dark Blue Mark

With a standard ECU it may make it runleaner and sap a bit of the torque...

IMHO

MB

watfordhorn

So you are guessing it actually makes it slower rather than faster, definatly coming off now then ;-).

Mind you, I doubt it will turn as many heads without the sucking noise from the k&n;-)

I was under the impression the ECU would remap itself to suit the extra airflow. Is this not the case ?

Cheers for the quick response.

Andy Hobson

When I added the K&N 57i to my MY00 which already had a full decat exhaust I found it revved a lot more freely and pulled harder to the red-line. So much so that I hit the limiter a few times until I got used to it ! IMHO it's only worth it if you already have the full decat.

It does introduce a lean spot on low revs which can be corrected with a ECUTEK Tek2 remap.

Andy.

Dark Blue Mark

Im not sure about the K&N, its very good, I had one fitted and thought it was good. But, about 6 months later I took it off and was much happier. It made it sound like a tank and makes a nasty noise when you let off. If you're going to get one though, thats the one to go for. No MAF failures etc...

I know the APS one (similar) has proven to run v. lean on the RR. There were some results on here a while back.

I would be wary without a re-map, but I am quite a cautious chap!

MB

chiark

Snigger...

Anyhow, back to the plot, the K&N 57i seems to be pretty well liked on here, as there's not been reports of "K&N killed my MAF".

However, MAFs have failed even on the standard induction setup...