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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

6,197 Posts
424 Topics
Last post by ckeene
in Re: Samco Silicone Hoses...
on 03/29/18 02:55 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.

10,264 Posts
870 Topics
Last post by Jwh91
in Re: Read this before you...
on 04/03/18 07:57 PM
No New Posts

Perf: Drivetrain Brakes & Suspension

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

10,434 Posts
866 Topics
Last post by Z66Modder
in Re: GMT800 to GMT900 Bra...
on 04/12/18 09:53 PM
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.

13,397 Posts
1,006 Topics
Last post by redheadedrod
in Re: Macchina M2 Vehicle ...
on 03/27/18 05:41 PM
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..

20,356 Posts
1,752 Topics
Last post by MS03 2500
in Re: Possibly stupid ques...
on Yesterday at 09:11 PM
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Perf: Forced Induction

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

9,809 Posts
387 Topics
Last post by Jwh91
in 2005 5.3, MAF 215-ish g/...
on 04/11/18 09:40 PM
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

9,654 Posts
646 Topics
Last post by JVZL1
in Re: What year lq9 motor ...
on 04/18/18 05:05 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 2 Guests are viewing this board.
Best bang for the buck « 1 2 3 4  All » Vonderbach 80 43,459 Last post 04/07/18 01:34 AM
by Jwh91
READ THIS BEFORE YOU POST HERE! goo929 0 7,766 Last post 09/19/02 11:32 AM
by goo929
what have you done to improve your MPG? « 1 2 3  All » jplumer 61 49,222 Last post 04/11/18 09:53 PM
by Jwh91
Fastest Avalanche list (track times) « 1 2 3 4 5 ... 17  All » KY_BOB 401 128,647 Last post 09/17/17 07:45 AM
by DrX
So looking to build my '03 into a (semi) monster... redheadedrod 0 402 Last post 02/15/17 04:55 PM
by redheadedrod
100 horse more at the wheel? jwylde7 10 2,848 Last post 02/05/17 11:26 AM
by groo
Performance Mods! 04AvGuy 5 1,677 Last post 01/28/17 01:20 PM
by Z66Modder
Best WARRANTIED engine/torque/go fast mods for 07 and up???? Hanz Groober 9 4,085 Last post 01/25/17 10:00 PM
by XSKIER
New Avalanche Arrived, Time To Begin 6.0L Conv.! « 1 2 3  All » Jason_@_TX_Speed 58 14,301 Last post 06/07/16 08:04 AM
by igotzzoom
Just Getting Started EWD 0 690 Last post 04/20/16 11:03 AM
by EWD
some mods I got need more venomchevy 8 4,499 Last post 03/03/16 01:04 AM
by redheadedrod
Best Single MPG Mod? « 1 2 3  All » Oleksy 61 29,517 Last post 06/15/15 11:27 AM
by mavericknj
how to burn out?? « 1 2 3 4 5  All » 04avZ71 105 87,120 Last post 02/10/15 11:23 AM
by 09chevyavy
E 85 upgrade « 1 2  All » Birchboy 27 17,199 Last post 10/06/14 08:13 PM
by Rocky Mountain Sooner
Looking for performance with 1500 bucks « 1 2 3  All » sebs50 51 27,353 Last post 08/22/14 02:14 PM
by timfarn
what do u think my first performance mod i should do to my AV bigbrent 8 5,183 Last post 05/23/14 06:26 AM
by Maniac
Mods to suggest... Bolt on preferred... Klay23 15 5,867 Last post 03/05/14 05:57 AM
by Roody650iAvy
Avalanche finally meets the Dyno...video TXSZ66AVLANCHE 16 6,679 Last post 12/16/13 04:40 PM
by RB`s 2010 AV
HELP!! WANT more power!! « 1 2  All » Avalanche 1500 37 9,268 Last post 11/22/13 01:13 PM
by RB`s 2010 AV
hoo has the most horse power!! « 1 2 3 4  All » stogen 80 23,629 Last post 09/16/13 06:30 AM
by enoniam
CAI, Exhaust and Programmer Submariner 1 2,402 Last post 08/09/13 11:57 AM
by Submariner
0-60, who has the quickest Avy! AvyMan2093 12 4,020 Last post 04/25/13 06:53 PM
by Old No.7 Avalanche
Best performance mods for the money Bucks79 7 5,680 Last post 11/01/12 06:19 AM
by Bucks79
Advice with performance Mods needed!!! avking 10 4,674 Last post 06/25/12 06:57 PM
by MyBigToy
too soon to put it on the track? firebus 3 2,418 Last post 06/19/12 01:00 AM
by Mr Monte
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