worth buying the K&N or use stock filter

[beachbum3478]

my 82 gs1100gl is completly stock. it is in need of a new airfilter and i was wondering if it was worth buying the k and n filter for it or just buy the stock replacement filter. basically whats the pros and cons if any. thanks guys.

[Nessism]

K&N filters pass lots of air because they don't filter very well. Most people will tell you they filter "good enough" which I think is true - I have one on my 850. Only reason I bought one was because it was cheaper than a stock filter. My plugs are white now but the bike runs well so I haven't done anything about it. In my opinion, leave the stock filter in there unless you need a new one.

[bwringer]

There's also a Uni foam filter that's a direct replacement for the stock foam element. It's about $20 most places.

Don't use more than the lightest whisper of oil, or it will block off too much airflow and run like crap.

[Griffin]

I've had very good results using a stock airbox with K&N OEM style filter, stock exhaust, and Dynojet Stage I jet kit on several GS and KZ models. On four different bikes (GS700ESF, GS750EX, KZ750A2, and GS1100EZ) the changes resulted in drastically reduced warm up time, crisper throttle response, and slightly increased top end "punch".

I think it's one of the best bang for your buck performance upgrades for these old UJMs.

[don_gibb6512]

When I put a K&N filter in the stock box on my '83 GS1100GLD the only tweak I had to do was with the fuel/air screws. Everything else stock and it was fine. I'd do it again in a heartbeat.

My .02 worth.

[progas]

I would run a stock filter, the k&n will allow more air resulting in a lean running bike. You can run a k&n if your willing to compensate by adjusting the carbs, some times, that runs into alot of work. That my .02 cents worth