The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 99-06 Chevy and GMC Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-09-2017, 01:24 PM   #1
Steve Cole
Senior Member
 
Join Date: May 2012
Location: Faith,NC
Posts: 1,253
Question for all the tuners out there!

Here is the question. If I take a bone stock 2005 5.3 and replace the manifolds/single exhaust with headers/dual exhaust and install a cold air intake, should I have the computer re-tuned or is that not enough of a change to worry about? Thanks!
Steve Cole is offline   Reply With Quote
Old 10-10-2017, 03:39 PM   #2
69gmcc10
Senior Member
 
69gmcc10's Avatar
 
Join Date: May 2011
Location: Missoula, MT
Posts: 907
Re: Question for all the tuners out there!

I am not a computer tuner, but I have had tunes done on my trucks.

A tune will always be the best bang for the buck. Regardless if there are any mods done to a truck or not, I would always advise someone interested in a tune to get one. A good tune from a reputable person/company can increase your driving experience (mpg and power) just by making some adjustments to the ecm. When you change the parameters of air flow on your vehicle with an intake, exhaust, cam or product of the type, they will not be optimized without informing the computer something is different.

Personally I would save the $$$ from a cold air intake to pay for the tune and just replace the stock air filter with a direct replacement AFE dry filter. The volume of the stock intake was designed to meet the needs of the 8.1, so it has plenty of capacity in stock form, the filter is just a little restrictive. But if you really feel the urge to drop some coin on a CAI the AFE Momentum GT seems to be a solid performer as doe the AEM Brute Force, others seem to have little benefit or require more tuning to optimize them according to a recent Black Bear Performance intake test.

let us know your progress, have fun!
__________________
69 GMC C10 build thread- http://67-72chevytrucks.com/vboard/s...d.php?t=501676

03 Silverado build thread-http://67-72chevytrucks.com/vboard/s...d.php?t=591582
69gmcc10 is offline   Reply With Quote
Old 10-10-2017, 08:14 PM   #3
Steve Cole
Senior Member
 
Join Date: May 2012
Location: Faith,NC
Posts: 1,253
Re: Question for all the tuners out there!

Wow, great advice! I agree with everything you said but I should have mentioned that this is for a swap into a 68'. My reason for asking is the place doing my harness is also doing my PCM re-flash but it is basically just removing the un-necessary so it will run. If the engine were bone stock with no mods, this would be all that is needed. I was trying to determine if after it is running , if I needed to take it somewhere to get a second tune.
Thanks.
Steve Cole is offline   Reply With Quote
Old 10-10-2017, 08:52 PM   #4
Project86
Registered User
 
Join Date: Oct 2013
Location: Biloxi MS
Posts: 200
Re: Question for all the tuners out there!

to be on the safe side I definitely would have it returned but as mentioned above I would look into a dry filter vs a cold air intake.
Project86 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:59 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 1997-2013 67-72chevytrucks.com