I recently purchased my '07 NBS Silverado crew cab 5.3 litre. It is bone stock. I have GRAND PLANS to upgrade and modify!! One of my first projects will be to upgrade the CAI and Exhaust, and then tune. The one thing that I don't want to do is repeat the problem that I had with my previous Hummer H3. I installed a Magnaflow catback system. The quality, fitment AND price were excellent. The drone / resonance inside the cabin was horrible especially at low RPMs. I searched a little and found some information, but I thought it would be a good idea to start a new post and generate some discussion about the various systems and how they rate as far as in-cabin noise. I'm sure ALL of the systems sound great outside the truck, but are you satified with the interior sound?
Thanks in advance for your input!!![]()
Last edited by MAsZ71; 10-20-2009 at 08:01 PM.
Mark
2007 Black Silverado LTZ Z71 4x4 Crew Cab, 5.3L, Airaid MIT and K&N Filter,
Corsa Sport Exhaust, Rough Country 2" Leveling Kit, Removed Front Air Dam,
N-Fab Steps, Line-X Bedliner, Truxedo LoPro QT, Carriage Works Billet Grill,
18x9 Helo 835 Machined Black Rims, 285/65/18 Nitto Terra Grapplers
Time to slow down on the mods! Running out of money

My magnaflow was the same way for my beast, it rotted off in only three years so when i got new exhaust i went with a flo-pro muffler and love it. Better seat of the pants feel, no drone and a way better sound, and half the price!!!!
99 K1500 Suburban LT "THE BEAST"
5.7 K&N & True Dual Exhaust
Hypertech III
05 17" Silverado rims
99 LS 1500 5.3 "THE MULE"
Reg Cab Long Box
285/75/16E Dunlop Rover M/T
___________________________
Jason

I had a flowmaster i had it switched out for a flo-pro its great sounds good outside quiet inside
2004 Silverado 2500 HD LT
Tuff Country Leveling Kit Recon Cab Lights
N-Fab Light Bar
Flo-Pro Dual Exhaust
Extang Toolbox Tonneau
Black Grill
Black lower Valance
Black Bowtie
Tow Mirrors
35% Window Tint
285/75/16/ Nitto Terra Grapplers 16x8 Eagle Alloy 058 Series
Bed Armor Bedliner
No drone with the corsa exhaust! Www.corsaperformance.com thats what i got and i couldn't be happier!
2008 Chevrolet Silverado 1500 LTZ 5.3L EC/Std Bed 4x4 Flexfuel
Full Metal Jacket Spray on Bed Liner
Black Powder coat Diamond Plate Weatherguard Tool Box
Corsa Performance Sport Exhaust System
K&N Flat Panel OEM replacement Air Filter
Bridgestone Dueler A/T Revo tires P275/55/R20
Black Reflective pinstripe and VORTEC hood lettering
Billet front bowtie
Rear Bowtie Delete
Blue strobe grille lights
Blue strobe rear window lights
Blue LED Mini Light bar in front Grille
Oh yea! Lol i like to promote the products i use because i like to support the company and bring them business!
2008 Chevrolet Silverado 1500 LTZ 5.3L EC/Std Bed 4x4 Flexfuel
Full Metal Jacket Spray on Bed Liner
Black Powder coat Diamond Plate Weatherguard Tool Box
Corsa Performance Sport Exhaust System
K&N Flat Panel OEM replacement Air Filter
Bridgestone Dueler A/T Revo tires P275/55/R20
Black Reflective pinstripe and VORTEC hood lettering
Billet front bowtie
Rear Bowtie Delete
Blue strobe grille lights
Blue strobe rear window lights
Blue LED Mini Light bar in front Grille
I had Borla exhaust on a C5 Corvette. Nice quality system. Anyone here have a Borla system on their truck?
I also had a B&B Exhaust (Billy Boat) on a different Corvette. How about their truck version?



I've commented on this a few times already, I've had 2 Gibson systems and in both applications (5.7L and 5.3L) there was no cabin drone at cruising speed. They have a nice rumble at acceleration and at wide open throttle it roars!
Adam
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2005 Z71 Silverado Crew Cab
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'97 Chevy Suburban LT
'94 GMC Sierra SLE
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