chewyjr18

Hey there i have a 2003 21xci with the open bow and the 496 mag in it. Pics will follow soon but i think i picked it up for a good price i got it for 21k with 300 hours and all the service record to go with it. I own a stereo shop in Norco, ca so i am in the middle of putting in 4 tens and 2 15's 12 sets of speakers and 5 amps pics will follow shortly of the build. But i am wondering what kinda of performance products are out there for this motor i have the 375hp 496 any help and advice appreciated.

Centsless

raylar is one of the few that does anything worthy of mention with the 496 but its not cheap.......
the other option is to bump it up to HO ..425 hp and call it a day
with proper headers you will net about 450 hp
good luck

chewyjr18

where would i find a junked 496 h.o. to rebuild, or a good used one buying a crate motor is a little outrageous id rather a bigger boat!! Plus the mechanic told me here locally that this is the biggest motor my hull can handle is this true?

chewyjr18

first trip to the river on memorial day





turn it up



my company's logo


amber led's everywhere

chewyjr18

Centsless

i would agree with your mechanic...... thats about all you want for power in a 21 ft boat
read through some of the past treads in the lavey forum here
i had the same query you did for my 26' nuera......
i was warned off

lavey jr

The 21 can handle more power than a 496.
We've built some with a Merc 500 and Merc 525... There's one out there that was even built with a Merc 600sci that has seen 100mph...

chewyjr18

i would love to put a 525 in it, maybe in a few years for now what are some good bolt-ons for some added power? EMI exhaust? what else feedback appreciated.

Centsless

well JR is as good as the hosses mouth
now you know

Uncle Dave

Niiice. Trying to figure out how I missed this post.



Uncle Dave