Quote:
Originally Posted by F30form
And those gains are likely not repeatable. Modern BMWs will adapt for increased flow by changing other factors to retain stock characteristics. Those pulls were likely done RIGHT after installation. Notice BMW dos not make any HP claims with exhausts?
|
reading the description on whats included in the ppk package, it does come with an ecu tuning software.
if that is the case then your wrong. it will not change back to the stock characteristics after the install.
the whp and wtq numbers will definitely be different from car to car even with the same software and car model. that is just the nature of tuning cars in general.