skaarlaj

I went from 13.7@103 to 13.2@108 with an ecu tune, do you think headers would get me solidly into the 12's in the quarter. I know these times are pretty sad, but I'm over a mile high in altitude. These times are also from a G-tech-pro, which has proven to be very consistent.

xtyper

Without a doubt. Headers with catless midpipes will yield similar hp and torque gains as the tune. Your 13.2 at 108 will become 12.7-12.8 at 111-112.

skaarlaj

Glad to hear that!

Alwoody

Do you have an Idea why you have so bad times. Stock c63 can hit the 11.xx ?

khmergod

I've only heard of stock P31s hitting 11.xx on low temp and altitude.

Merc63

Its called altitude.

Merc63

Blower will knock you down a whole second ontop of headers.

skaarlaj

6500' elevation.

skaarlaj

I believe it, seeing how well it responded to just an ecu tune. Hopefully sometime soon, I'll slap some headers and retune again and see some more good results!

skaarlaj

I'm guessing Wisetech's the ones who did your ecu tuning as well, I was wondering if they had to simply upload an existing tune-file to get your car running good with the blower, or was there quite a bit of custom dyno tuning to get her sorted out as far as AF ratio, ignition timing. I ask because I live in a place where there's not very many dyno facilities.