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Thread: 07 si top speed
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Old 07-29-2007, 08:30 PM   #12 (permalink)
Si 07
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Quote:
Originally Posted by kene79
ive heard about the reflash but what exacly does it do and will it void the warranty? does it add more hp and if so how much can i expect to gain?

not so sure about if it voids the warranty havent checked but...

what it does is: (taken from hondata.com)

if you wanted the highlights i bolded them

The K20Z3-06Si reflash lowers the VTEC point to 4500 rpm, advances the cam angle and raises the rev limit to 8600 rpm.

We have implemented a VTEC window from 4500rpm to 5800 rpm.

* Below 4500 rpm the K20Z3 is always on the low cam
* Above 5800 rpm the K20Z3 is always on the high cam
* Between 4500 rpm and 5800 rpm the K20Z3 is on the low cam at part throttle switching to the high cam at full throttle.

This one reflash will work well with a variety of aftermarket performance parts. It will work well with:

* An intake
* Cat-backs (as long as they are less restrictive than stock)
* A race header *
* A combination of intake and race header

You must have a minimum of an intake or header (to use without choking)



hope this helps
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