The hyper 7 pipe? Sounds mean! will try to post a video of it running. Lst pipe (with the mach .26 engine on my lst) is really nice, very crisp, though it is quite loud, sort of wish it was just a bit quieter, but it runs great.
Think 17mm is the standard.
It's kind of funny that is the exact pipe I have, but with the side exhaust manifold.
But what i was meaning by it is retained by a spring is, if you look at the hyper 7, it has a silicone coupler that holds the pipe to the manifold. Then the manifold is held on by...
You will need a spring retained pipe as well. Something like this:https://www.ebay.com/itm/Team-Losi-LST2-HT-Tuned-Pipe-LOSB5059/143300191628?epid=1536985204&hash=item215d5b658c:g:X90AAOSwnHBdCWSj
You will need a spring and seal kit...
it does take a bit of trimming of the mud guard to fit the Losi set-up, (have been running with no mud guard for the past few months with no issues, havent had time to trim my mud guard yet.) and iirc it does need a slight bend to clear the starter housing if you are still using the stock...
I know my lhs has a few blue ones for the .21, on my .28 I ended up using a bit of high temp rtv to seal the exhaust and a trimmed down gasket. Works fine, does not look the greatest.
they are getting a bit harder to find online sadly,
just remembered though, there are 2 different ones availiable, one for the .21 and one for the 4.6, for the Team Associated ones. you are looking for part# ASC25433, you can make the ASC25405 header work, but you will need to trim down your...
you are looking for asc25406 or asc25405, another option is to look for a Losi LST1/2 / Aftershock pipe and manifold and modify the manifold just a little to clear the pull start housing.