KTM 790 Duke Forum banner

Aliexpress titanium alloy headers

1 reading
30K views 46 replies 18 participants last post by  Nick_Duke790  
Didn't see anyone say this worked on an 890R but just rolled the dice and ordered the one linked by Prick above. If it doesn't work I'll dump it in the classifieds.

Based on the fact that Arrow has the same part number listed for their header for the 790 and the 890 it seemed like a fairly safe bet.
 
LOL wow so yeah not for me. The pipe looks pretty good I guess. I do a little GTAW myself and I couldn't do this good, so it has that going for it. But that's about it.

Fitment absolutely sucks. It's like someone dropped the jig off of the bench and everything is off just a little bit. I couldn't get anything lined up and not be precariously tight and out of whack. Also, the end of the outlet of the header was flanged outward just enough (from a sloppy cut) that getting the gasket onto it was nearly impossible. After fighting with it for about an hour I gave up. I don't need blue pipes THAT bad.

Totally bad roll of the dice. Maybe others will get lucky like OP but this one will go into the scrap bin. Maybe I can practice stacking dimes on it myself. I need a better purge setup for Titanium alloy though.

I didn't weigh it or the stock header. I was too angry at that point. When I was finished bolting the stock header back on I realized I forgot sorry. Honestly they are not that different so I would be surprised if it's more than a few lbs.
 
Oh yeah one other thing, the flange ring holes were like 1mm too narrow. You could get them on the studs but they didn't want to be there at all. I could have hogged them out a little bit but that also would have been pretty sloppy.