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Mckillop
06-09-2011, 05:20 PM
Im am considering picking up one of these two options below, but before I do I'm wondering if anyone has has any experience with either or if you think it would even be worth it. It would be going into my 25ZX with a 502mpi that is basically stock.
http://www.cpperformance.com/p-13681-ss-sport-series-tuning-kit-for-mercruiser-454-502-magnum-mpi-engines.aspx

or
http://www.cpperformance.com/p-13680-se-special-edition-tuning-kit-for-mercruiser-454-502-magnum-mpi-engines.aspx

mrfixxall
06-09-2011, 05:41 PM
Im am considering picking up one of these two options below, but before I do I'm wondering if anyone has has any experience with either or if you think it would even be worth it. It would be going into my 25ZX with a 502mpi that is basically stock.
http://www.cpperformance.com/p-13681-ss-sport-series-tuning-kit-for-mercruiser-454-502-magnum-mpi-engines.aspx

or
http://www.cpperformance.com/p-13680-se-special-edition-tuning-kit-for-mercruiser-454-502-magnum-mpi-engines.aspx


neither :),,if its for your zx you wont notice the performance.. too little of hp gain for the money..save your money and invest in a pro charger or a Whipple.one of those will give you a 15 mph increase..

Mckillop
06-09-2011, 05:54 PM
Thats the advise I was looking for. Thanks. I have always heard that the k&n flame arresters don't really add anything, but was not sure if I added the fuel pressure regulator as well.

Tidbart
06-09-2011, 09:49 PM
save some $$$

http://www.hardin-marine.com/p-13296-ss-super-sport-series-flame-arrestor.aspx

Now go find a reg, if you want to.:wink:

The Hedgehog
06-09-2011, 09:59 PM
What fix said. Drive the boat for a season or so and then figure out how fast you want to go. You will not even notice the small mods.

MOP
06-10-2011, 06:25 AM
It takes MUCHO $$$ to get any real noticeable gains, some say $1,000 a mile. I think that is high but the faster you want a boat to go the higher the $ figure climbs, besides there is always someone faster. Shoot for being content with the performance you need not what you dream of.

WifeHatesMyDonzi
06-10-2011, 07:00 AM
neither :),,if its for your zx you wont notice the performance.. too little of hp gain for the money..save your money and invest in a pro charger or a Whipple.one of those will give you a 15 mph increase..

What kind of $$$'s would we be talking about for either one of these options [just ballpark #'s of course]

LKSD
06-10-2011, 08:23 AM
Yes, big power is needed there to notice a good amount of speed difference..

mrfixxall
06-10-2011, 10:41 AM
What kind of $$$'s would we be talking about for either one of these options [just ballpark #'s of course]


pro charger,6-7 k whipple 8k this would be new,,you can find good used stuff out their for about 1/3 of the price..