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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

6,246 Posts
427 Topics
Last post by Alaska_AV.
in Re: Are You One Of The e...
on February 10, 2019, 16:22:54 PM
No New Posts

Perf: Air Intakes Kits & Filters

One of the first and easiest performance mods you should make. Cold air intakes, FIPK and others.

10,277 Posts
873 Topics
Last post by Snakepit
in Re: Everything about Spe...
on December 23, 2018, 19:15:21 PM
No New Posts

Perf: Drivetrain Brakes & Suspension

Transmission, differential, driveshaft upgrades for better performance. Suspension and Braking improvements for the performance crowd

10,478 Posts
874 Topics
Last post by frito
in Re: GMT800 to GMT900 Bra...
on Today at 06:05
No New Posts

Perf: Engine Computer

Everything about tuning the engine computer for more horsepower. From programmers and modules to custom computer software & programs. Tune your truck to your needs.

13,423 Posts
1,010 Topics
Last post by redheadedrod
in Re: Factory top speed li...
on January 15, 2019, 07:20:40 AM
No New Posts

Perf: Exhaust

Lets get the air out of the engine now. Information about exhaust, cat back systems, shortie headers, medium and long tube headers, mufflers, tips & etc..

20,377 Posts
1,755 Topics
Last post by Notch
in Re: 2007 Avalanche, no d...
on Yesterday at 10:29
No New Posts

Perf: Forced Induction

Serious horsepower, serious money. Turbochargers, Superchargers & Nitrous.

9,834 Posts
389 Topics
Last post by KY_BOB
in Re: Supercharger Avalanc...
on Today at 22:46
No New Posts

Perf: Ignition & Engine

Performance mods to the ignition system. Includes Plugs wires and coils. Engine mods include heads, valves, rockers, coolant system etc

9,708 Posts
657 Topics
Last post by redheadedrod
in Re: 6.0 or 6.2 engine sw...
on December 25, 2018, 19:50:45 PM
Whether it's the 5.3 or the 8.1 share tips and tricks on how to boost horsepower, torque, and smoke the competition.
Pages: [1] 2 3 4 5 ... 13   Go Down
  Subject Started by Replies Views Last post
0 Members and 1 Guest are viewing this board.
READ THIS BEFORE YOU POST HERE! goo929 0 8,008 Last post September 19, 2002, 11:32:49 AM
by goo929
Looking For Practical Mileage Increase Mods « 1 2  All » RedAV 36 12,403 Last post October 12, 2018, 09:45:32 AM
by Vaeagleav
what have you done to improve your MPG? « 1 2 3  All » jplumer 61 51,517 Last post April 11, 2018, 21:53:31 PM
by Jwh91
Best bang for the buck « 1 2 3 4  All » Vonderbach 80 45,989 Last post April 7, 2018, 01:34:42 AM
by Jwh91
Fastest Avalanche list (track times) « 1 2 3 4 5 ... 17  All » KY_BOB 401 139,763 Last post September 17, 2017, 07:45:08 AM
by DrX
So looking to build my '03 into a (semi) monster... redheadedrod 0 641 Last post February 15, 2017, 16:55:58 PM
by redheadedrod
100 horse more at the wheel? jwylde7 10 3,389 Last post February 5, 2017, 11:26:14 AM
by groo
Performance Mods! 04AvGuy 5 2,174 Last post January 28, 2017, 13:20:24 PM
by Z66Modder
Best WARRANTIED engine/torque/go fast mods for 07 and up???? Hanz Groober 9 4,648 Last post January 25, 2017, 22:00:48 PM
by XSKIER
New Avalanche Arrived, Time To Begin 6.0L Conv.! « 1 2 3  All » Jason_@_TX_Speed 58 15,568 Last post June 7, 2016, 08:04:30 AM
by igotzzoom
Just Getting Started EWD 0 902 Last post April 20, 2016, 11:03:48 AM
by EWD
some mods I got need more venomchevy 8 4,996 Last post March 3, 2016, 01:04:50 AM
by redheadedrod
Best Single MPG Mod? « 1 2 3  All » Oleksy 61 31,502 Last post June 15, 2015, 11:27:52 AM
by mavericknj
how to burn out?? « 1 2 3 4 5  All » 04avZ71 105 91,689 Last post February 10, 2015, 11:23:21 AM
by 09chevyavy
E 85 upgrade « 1 2  All » Birchboy 27 18,230 Last post October 6, 2014, 20:13:59 PM
by Rocky Mountain Sooner
Looking for performance with 1500 bucks « 1 2 3  All » sebs50 51 29,154 Last post August 22, 2014, 14:14:58 PM
by timfarn
what do u think my first performance mod i should do to my AV bigbrent 8 5,655 Last post May 23, 2014, 06:26:08 AM
by Maniac
Mods to suggest... Bolt on preferred... Klay23 15 6,519 Last post March 5, 2014, 05:57:32 AM
by Roody650iAvy
Avalanche finally meets the Dyno...video TXSZ66AVLANCHE 16 7,280 Last post December 16, 2013, 16:40:53 PM
by RB`s 2010 AV
HELP!! WANT more power!! « 1 2  All » Avalanche 1500 37 10,254 Last post November 22, 2013, 13:13:15 PM
by RB`s 2010 AV
hoo has the most horse power!! « 1 2 3 4  All » stogen 80 25,259 Last post September 16, 2013, 06:30:53 AM
by enoniam
CAI, Exhaust and Programmer Submariner 1 2,659 Last post August 9, 2013, 11:57:03 AM
by Submariner
0-60, who has the quickest Avy! AvyMan2093 12 4,432 Last post April 25, 2013, 18:53:36 PM
by Old No.7 Avalanche
Best performance mods for the money Bucks79 7 6,749 Last post November 1, 2012, 06:19:28 AM
by Bucks79
Advice with performance Mods needed!!! avking 10 5,032 Last post June 25, 2012, 18:57:59 PM
by MyBigToy
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