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Perf: 2500 Specific Perfomance Mods

This area is for "the few, the proud ..." owners of the 2500 and their unique performance issues
JVZL1
Sway Bar
Replies
11
Views
673
Durwin
D
S
Headers - SHORTY PLUGS for 8.1l 2500
Replies
2
Views
123
MS03 2500
MS03 2500
redheadedrod
Replacing tired 8.1 with built 8.8 and looking for fuel pump to power FI and questions about FI
Replies
1
Views
249
batmanntexas
B
Auto Parts Guy
Avalanche 2500 Rear Diff Cover w/ Drain & Fill Plug
Replies
19
Views
446
-JRW-
J
JVZL1
2500 Brakes
2 3 4
Replies
97
Views
6K
-JRW-
J
J
Need Help trying to get more gas milage
Replies
22
Views
5K
Rassilon
Rassilon
JVZL1
Air Intakes
Replies
23
Views
3K
ToddG
T
MS03 2500
New 2500 Bump Stops
2 3 4 5 6
Replies
141
Views
70K
MS03 2500
MS03 2500
N
1500 to 2500 conversion
Replies
1
Views
308
ygmn
ygmn
JVZL1
456 re-gearing
Replies
20
Views
1K
JVZL1
JVZL1
M
Performance Torque Converter
Replies
4
Views
385
Meatsaw
M
canadiansuperman
duramax conversion??
2
Replies
42
Views
28K
MarineOne
M
D
Small cam build on 2500?
Replies
1
Views
309
Randy
Randy
E
Replacement muffler recommendations for 2004 2500?
Replies
2
Views
458
Auto Parts Guy
Auto Parts Guy
avalonandl
Oil Cooler
Replies
16
Views
3K
EXT4ME
EXT4ME
JVZL1
Starting Up dating The Mule
Replies
1
Views
425
JVZL1
JVZL1
ckeene
effects of taking off first two cats...
2
Replies
27
Views
10K
Randy
Randy
cntry_boy77
Rear axle cover
Replies
18
Views
5K
MS03 2500
MS03 2500
D
2500 Exhaust Diameter
Replies
2
Views
2K
dillpickle02
D
Todd Edge
Why do 2500's only have (2) O2 sensors
Replies
16
Views
5K
ronthehandymanga
ronthehandymanga
avalonandl
Fuel Pump Replacement
Replies
4
Views
2K
UC1996
U
J
New Exhaust System
Replies
3
Views
2K
UC1996
U
M
Are You One Of The exclusive Av (2500) Owners
10 11 12 13 14 15 16
Replies
396
Views
146K
UC1996
U
M
Performance Fuel injectors and Large Cats
Replies
3
Views
582
1stGenAvi5647
1stGenAvi5647
D
Rare Parts Tie Rod Ends
Replies
11
Views
1K
dna9656
dna9656
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