2TH4IST
Member
I have both, the aluminum koyo and csf. Aluminum koyo 100% hands down. Yeah the csf is nice and all, but it's just your plane jane single pass radiator. I had issues with the csf mounting holes lining up, but made it work.
Pulled the csf a few weeks ago and put the aluminum koyo back in. The koyo is a triple pass radiator. Goes from inlet upper hose, down, up the middle and back down to the outlet bottom hose.
On the trail today, I could not touch the inlet hose side and I could keep my hand on the outlet hose side. It works really well.
Prices from lc engineering
Koyo -529
Csf - 513
Csf is a bit cheaper, but it also doesn't have the mount tab ear thing to hang the radiator on the body. Either way I'd still go koyo.
Pulled the csf a few weeks ago and put the aluminum koyo back in. The koyo is a triple pass radiator. Goes from inlet upper hose, down, up the middle and back down to the outlet bottom hose.
On the trail today, I could not touch the inlet hose side and I could keep my hand on the outlet hose side. It works really well.
Prices from lc engineering
Koyo -529
Csf - 513
Csf is a bit cheaper, but it also doesn't have the mount tab ear thing to hang the radiator on the body. Either way I'd still go koyo.