OK, in one of the mustang magazines it says zex makes a system for 125 hp shot. On some ads in the magazine i read that, meanwhile I literally turn the page and i says the highest HP gain you can get is 75 hp. What is going on? Zex's website is down, so i can't ask them..anyone have an answer? Anyone have a zex kit on their mustang? Please share your experiences.

Thanks
Henry

The only thing I could find.... not much but..

reviews.stangnet.com/review.cgi?ID=275

btw the zex site is up now..... www.zex.com

Sounds like a kick ass system. Would like to know more...

ZEX provides nozzles/jets for the HP you want. They have a disclaimer that 75 is the most HP they recommend for stock vehicles and don't recommend more HP unless the engine is highly modified, piston, rods, cranks..ect.

i would not recomend the zex kit. It does not have a fuel pressure drop cutoff safety. That means if your fuel pressure drops, it doesnt know the difference, and boom, a new engine would be needed. I would go with N.O.S. or Nitrous Express.

[Quick4.6]

None of the base kits come with FP cutoff switches, they're optional.
The ZEX kit only comes with 75hp jets on the import engines.
The 5.0/4.6 kit comes with 75,100, and 125 jets.
I would NOT recommend running nitrous without a window switch.

i would not recomend any kit without the fuel pressure cutoff switch.

[UVBNBIT]

None of these kits come with a window or hobbs switches, these are both options you should add on along with a bigger fuel pump.
Where the ZEX system really differs from the NOS system in that it has all the solinoids located inside a box that is easy to hide and it uses the TPS to trip the solinoids instead of a microswitch on the throttle body. The Zex system for the mustang comes with jets for 75-100-125 shots, I have used all three with no problems(except traction),and have since called ZEX and was given the jet sizes for 150-175-200 shots which is the max that the solinoids can handle. I have not run the 150 shot yet because of major traction issues im having now with the smaller shots but I plan to later. The 175-200 shots are really to big for most stock motors and would require a built motor with forged internals, but its nice to know I could if I wanted at a later date. To sum it up if you want to go the tried & true way then stick with the NOS, but if you want a system that is a very stealthy and clean instalation check out the ZEX. Here are some pics of my system:

Bottle in trunk

http://www.netsnapshot.com/users/626...Q_6269_9.pjpeg

My switches to arm the system, hidden in ashtray

http://www.netsnapshot.com/users/626..._6269_29.pjpeg

The FP & A/F ratio gauges to monitor my system

http://www.netsnapshot.com/users/626..._6269_17.pjpeg

If it were not for the ZEX sticker you wouldnt even know it was there

http://www.netsnapshot.com/users/626..._6269_13.pjpeg