   
Model applicability:
S4 NA = 1986-1988 non-turbo
S4 TII = 1987-1988 turbo*
S5 NA = 1989-1991 non-turbo
S5 TII = 1989-1991 turbo
*N332 & N333 ECUs only. |
Order: or Find a Dealer
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Rtek7 ECU Upgrade
Version 1.5
$120 / $140
(Self / DTI Install)
Version 1.7
$150
Version 1.8
$130 / $150
(Self / DTI Install)
Upgrade from v1.x
to v1.7 or 1.8
$15* / $30
(Self / DTI Install)
* 1.x chip must be sent back before upgrade chip is shipped. Self Install Upgrade to 1.7 not available.
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Customer review:
Rtek7 ECU Upgrade:
The fuel cut on cranking (anti flood) function worked great! Rebuilds flood consistently when first started for a few hundred miles, so this ...
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-Kevin Landers, Morristown, TN
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