I haven't rejetted. It really doesn't seem to need it. A guy I ride w/ has a very trick Banshee. We pushed eachother pretty hard today and I did an engine cut at the end so I'm gonna pull the plug and take a look. I'll let you know what it looks like.
I let my dealer know they shouldn't be allowed to sell these things without the pipe.
i have run my predator on the dyno ,achieved 47.88 hp with k/n and w/b slip on,with stock filter and w/b achieved 48.22 ,so rejetted up to a 155 and the k/n w/b pipe made 49.19 , and the stock air filter w/b with 155 jet 47.94 so for the pipe only the stock jetting will do but add the k/n and you will lose hp ,unless you add some jetting 155 works the best at sea level, this is all rear wheel hp all hp @8050 rpms
I run a polaris slip on, K/N filter, 170 jet, at 5000 ft. The dealer I purchased the slip on from, said there was no need for jetting for the pipe. The pipe did make a felt difference. The next add on maybe nos.
wilsonoo im at 6100 ft have wb slip on no kand n yet my dealer and speed shop both told me the same thing not to rejet cause it comes jetted for sea level from the factory said to put k and n in to and go still have plenty of fuel this is getting confusing cause every body says different i want to believe the speed shop here cause they know there stuff they build all the hot rod bikes in this area and one of the owners has a pred he said you will have to rejet with air box mods
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