Hi Guys, just looking for some advice i have done the sai, n112 & n249 removal and no codes as of yet have just received my oil catch can with 15mm inlet/outlet of ebay and just wondering if it would cause any damage reducing pipe from 19mm to 15mm rather than messing around trying to fit bigger inlet/outlet to catch can?? Any help or comment is, as always appreciated. Thanks

I looked into this initially as I'm due to fit a catch can.

I would use the search function and take a read as there are some conflicting info, so probably best to read it all and make your own mind up.

Ive gone with the 19mm as I'm not taking an risks.... I'm also of the opinion if you're gonna do it, do it properly

The majority of cans fitted use 19mm fluro lined silicone piping (including myself).

 

Its entirely up to you buddy (good advice above from "jars").

Iirc It's the cheap ones that are 15mm hence why we see this question a bit :p

Cheers Silver

You need to make sure it stays plumed to intake

Cheers lads, seems there's no solid proof as to wether it makes any difference or not like, asked at a few parts suppliers aswell n they rekon it should be orite as air can still pass through but could create more pressure in engine and possibly blow a seal... That would be painful! Luv this octy so suppose it better to be safe than sorry. Not going to risk it, think I'll just get some new ones made up to fit. [emoji106]

Sent from my LG-P880 using Tapatalk

19mm no less simple