do they work good and if so where can i find the and which one is the best??

 

On a stock car: No, they wont do you much good. On a stock motor, equipped with a factory fuel and ignition system, there is no need to change the VTEC point. Because with the introduction of more air, more fuel is needed to prevent the motor O2 levels to go lean, in turn burning a valve, or otherwise damaging the motor.

On a modified motor, with someone who know how to tune it, Yes, it will do you a load of good. To optimize VTEC, it is wise to introduce into the equation a larger fuel pump, larger injectors, and a controller, to change the fuel and ignition parameters of the ECU. Apex Integration, along with other performance parts manufacturers, make control boxes suited to just that purpose. You can see a image of the APEXi VAFC (VTEC/Air Fuel Controller below.




Heres a link to an FAQ post I made in the 01-05 forums.... Maybe that will help...
Clicky Clicky

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 25Type-s &raquo;</TD></TR><TR><TD CLASS="quote">do they work good</TD></TR></TABLE>

No, just a waste of money. They´re useless on K-Series engines.

If you want to tune your engine properly, get Hondata K-Pro.

 

damn u guys are quick i was also wondering about the reflsh??
BUT i have an 02 rsx and couple of monthe ago my motor blew so i had the dealership replace it, the replaced it with k20z1 would that make a differance when getting the reflsh???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hondata USA website &raquo;</TD></TR><TR><TD CLASS="quote">
Applications


2005 US RSX Type S with K20Z1 engine - ECU part number PRB-A13
2006 US RSX Type S with K20Z1 engine - ECU part number PRB-A14

Pricing

$595
Hondata does not sell direct - all sales and payment must be conducted through Hondata dealers. The upgrade information form must be sent with your ECU.

Details


VTEC window from 4900 to 5800 rpm
8600 rpm Rev limit, increased from 8300 rpm
Maximum torque gain 12 ft/lbs torque at 6000 rpm
Maximum power gain 20 hp at 8000 rpm
Peak torque increases by 6 ft-lbs
Peak power increases by 8 hp
Very wide flat smooth torque curve. 90% of peak torque available from 2200-8000 rpm.
Fully dealer compatible - works with all Honda scan tools and equipment</TD></TR></TABLE>


Dyno Graphs from a k20z1 on a Dynapak Dyno:

 

yea i seen that but would my ecu be different from the 05-06 or can i just use the part #'s they give me i just want everything to work right i dont want loose my money on it...
the guy from honda tech told me i would have to get k-pro but i dont have that type of money...

 

If you have the k20z1, then they had to have installed the z1 ECU.

So, in general, yes, the 05-06 RSX-s ECU Hondata reflash will work.

 

hah ur tha man thanx for all the help ive been thinking about this for a while now so all i have to do is just order the 05 -06 program i should be good to go..

any one else with some suggestions?????