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Performance ECM Upgrades
Advanaced discussion for Fel-Pro, DFI, and other aftermarket computers
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MS3 ULTIMATE Plug and Play Harness by RPS just announced..
marleyskater420
Dec 30, 2017
2
3
Replies
47
Views
9K
Jan 3, 2021
norbs
N
Sticky
XIM COP, BB COP, distributer, what works best
turbobitt
Nov 2, 2013
2
3
Replies
51
Views
15K
Jun 13, 2020
Chrisk
H
Sticky
Buick Sportsman XFI install help
HighPSI
Aug 24, 2017
6
7
8
Replies
156
Views
24K
Jun 10, 2019
ATL_87GN
A
Sticky
Fueltech Plug and Play With CRUZ Performance Wire Harnesses
sackracing
Jan 11, 2019
Replies
5
Views
2K
Apr 11, 2019
sackracing
C
Sticky
HOLLEY EFI plug and play with CRUZ Performance engine harness for TURBO Buicks
CRUZ Performance
Nov 12, 2017
Replies
15
Views
5K
Mar 9, 2019
III'S 87 GN
I
H
Sticky
New Buick XFI Sportsman ECU!!!!
HighPSI
Jun 21, 2017
3
4
5
Replies
93
Views
21K
Jan 8, 2019
Hartline Perf.
H
H
Sticky
IMPORTANT: ESC Retard!!!
HighPSI
Sep 29, 2010
2
Replies
32
Views
13K
Nov 15, 2017
xtremexnyc
X
Normal threads
Stock ECU Low Imp. MOD? Flex Fuel input?
BUICKTIME
Jan 31, 2024
Replies
5
Views
623
Apr 12, 2024
Real-T
R
M
Speeduino ECU's in Buicks?
mikebutash
Jun 18, 2023
Replies
3
Views
1K
Feb 1, 2024
MCH86GN
M
8
Sd2 should I spend my money on a gnecu
85 TR
Jan 20, 2024
Replies
12
Views
708
Jan 26, 2024
Mr.Spool
M
Another MS3Pro Evo build
ShawnR
Apr 1, 2020
2
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36
Views
4K
Jan 3, 2024
spaulding
S
A
misfire with fast system & msd dis
ANSPETE
Nov 30, 2003
Replies
16
Views
2K
Dec 25, 2023
Chuck Leeper
Cruz 12-1 crank trigger on ECUGN
BEATAV8
Dec 18, 2023
Replies
5
Views
560
Dec 22, 2023
TurboBob
T
Xfi wiring
Bescurred
Dec 21, 2023
Replies
1
Views
157
Dec 21, 2023
Chuck Leeper
S
Dynamic EFI EBL Flash System For GM Sequential V6 Boosted Engines....
Street Lethal
Jul 14, 2011
31
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33
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645
Views
104K
Dec 10, 2023
liquidh8
L
J
Apple air software compatible w/ GN ECU?
JP112_89
Dec 2, 2023
Replies
0
Views
166
Dec 2, 2023
JP112_89
J
X
Running rough and backfiring through exhaust. Fast XFI 2.0 - 15 Wideband Fault
xtremexnyc
Nov 28, 2023
Replies
2
Views
444
Nov 30, 2023
xtremexnyc
X
N
Knock Retard processing speed Stock ECU vs JS box and keeping it alive
norbs
Aug 3, 2013
2
3
4
Replies
79
Views
13K
Nov 20, 2023
John at J&S
J
P
ANYONE USING THE OLD ACCEL DFI GEN 6 SYSTEM
PaulRV6
Sep 17, 2023
Replies
2
Views
588
Nov 18, 2023
norbs
N
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Do I really need LS,ish individual coils?
GTP_ARGO
Nov 10, 2023
Replies
10
Views
763
Nov 14, 2023
THensley
T
OEM ECM NEEDED.
Toddmc66
Oct 25, 2023
Replies
4
Views
481
Nov 6, 2023
Toddmc66
new hp tuners box
TexasT
Nov 3, 2023
Replies
1
Views
314
Nov 4, 2023
Chuck Leeper
K
rife Air Temp Sensor and XFI. Who is using one and how have they calibrated it
karolko
Oct 3, 2023
Replies
2
Views
422
Oct 4, 2023
karolko
K
P
Need help from the wiring experts on coil pack terminal connector
PaulRV6
Sep 15, 2023
Replies
0
Views
430
Sep 15, 2023
PaulRV6
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J
Timing riding fast 2.
jowy
Jul 22, 2023
Replies
14
Views
1K
Aug 19, 2023
jowy
J
FAST 2.0
Chuck Leeper
Jun 3, 2023
Replies
5
Views
983
Jul 24, 2023
norbs
N
S
Holly EFI installed
Scarab
May 8, 2023
Replies
14
Views
2K
Jun 5, 2023
1NASTYGN
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