guys out there with 6.2??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sdelmar · 01-09-2010, 02:21 PM

Just got a 2007 Sierra Denali and was wondering if anyone has done any mods on these motors. Any success stories/recommendations/warnings? I am really thinking about a programmer mainly to get a firmer shift, but haven't seen much info as to which one is best for the 6.2. It seems like the 6 speed shifts VERY soft unless in tow/haul mode, then the downshifts are very aggressive.

I have also been considering headers and exhaust, but after inspecting the exhaust, it appears GM did very well with the factory exhaust and I likely wouldn't see much power gain.

Thanks in advance for any input!!!

clinebarger · 01-09-2010, 03:35 PM

If its still under warranty i whould leave it alone.

sdelmar · 01-09-2010, 03:52 PM

Quote:

Originally Posted by clinebarger

If its still under warranty i whould leave it alone.

That doesn't sound like much fun!!!

Manbearpig · 01-15-2010, 06:58 PM

www.blackbearperformance.com

Programmers suck for the most part (unless it's EFILive or HPTuner)
Get a custom PCM tune

silverado84355 · 01-18-2010, 10:48 PM

I too recommend justin at www.blackbearperformance.com for a tune.

silvereagle07 · 01-28-2010, 04:49 PM

You can try this website for info http://www.denalitrucks.com/

sdelmar · 01-28-2010, 07:25 PM

I actually have been looking at that sight recently, but have not joined the forum. I think I will do that right now!

Thanks!

sdelmar · 01-28-2010, 07:31 PM

I just read about blackbearperformance.com and I am very interested in what they can do! Thank you guys for that input!

01-09-2010, 02:21 PM	#1
sdelmar Registered User Join Date: Dec 2009 Location: Wichita, Kansas Posts: 60	guys out there with 6.2??? Just got a 2007 Sierra Denali and was wondering if anyone has done any mods on these motors. Any success stories/recommendations/warnings? I am really thinking about a programmer mainly to get a firmer shift, but haven't seen much info as to which one is best for the 6.2. It seems like the 6 speed shifts VERY soft unless in tow/haul mode, then the downshifts are very aggressive. I have also been considering headers and exhaust, but after inspecting the exhaust, it appears GM did very well with the factory exhaust and I likely wouldn't see much power gain. Thanks in advance for any input!!!

01-09-2010, 03:35 PM	#2
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: guys out there with 6.2??? If its still under warranty i whould leave it alone.

01-15-2010, 06:58 PM	#4
Manbearpig Registered User Join Date: Mar 2009 Location: Midland, Tx Posts: 418	Re: guys out there with 6.2??? www.blackbearperformance.com Programmers suck for the most part (unless it's EFILive or HPTuner) Get a custom PCM tune __________________ 1972 GMC C10 Last edited by Manbearpig; 01-15-2010 at 06:59 PM.

01-18-2010, 10:48 PM	#5
silverado84355 Registered User Join Date: May 2007 Location: Carlsbad,NM Posts: 99	Re: guys out there with 6.2??? I too recommend justin at www.blackbearperformance.com for a tune.

01-28-2010, 04:49 PM	#6
silvereagle07 Registered User Join Date: Sep 2008 Location: Bailey, NC Posts: 2,462	Re: guys out there with 6.2??? You can try this website for info http://www.denalitrucks.com/ __________________ Jeramy '84 GMC project truck '85 Chevy 4X4 SOLD '07 Chevy Trailblazer SS 5th Annual SHPHC Car/Truck Show Pics http://67-72chevytrucks.com/vboard/s...d.php?t=543605 UPDATED PICS! CHECK 'EM OUT

01-28-2010, 07:25 PM	#7
sdelmar Registered User Join Date: Dec 2009 Location: Wichita, Kansas Posts: 60	Re: guys out there with 6.2??? I actually have been looking at that sight recently, but have not joined the forum. I think I will do that right now! Thanks! __________________ 2007 Sierra Denali 1995 Sierra 4x4 (426,000 miles and counting) 2002 Acura TL-S (how did THAT get here????)

01-28-2010, 07:31 PM	#8
sdelmar Registered User Join Date: Dec 2009 Location: Wichita, Kansas Posts: 60	Re: guys out there with 6.2??? I just read about blackbearperformance.com and I am very interested in what they can do! Thank you guys for that input! __________________ 2007 Sierra Denali 1995 Sierra 4x4 (426,000 miles and counting) 2002 Acura TL-S (how did THAT get here????)



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