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Showing results for tags 'magnaflow'.
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What's up Guys. Writing this to gain some knowledge from gear heads that are more educated then I am. I probably did all this backwards but available funds played a role in the sequence of my purchases. Below is the order and links to all purchased items. Diablo I3 Tuner- https://www.diablosport.com/intune-i3-performance-tuning/ Throttle Body Spacer- https://www.amazon.com/gp/product/B00IBV4K6A/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 Cold air intake- https://www.amazon.com/gp/product/B00GP8FKGU/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 Performance exhaust- https://www.magnaflow.com/products/12867-performance-muffler-magnaflow-5-round-straight-through-performance-muffler?variant=18434149384307 I started off by tuning it with the performance preset tune that is pre installed on the I-3. There is a total of 3 pre installed tunes based on Octane Level. I believe it was ( Eco, Mid, Performance). I set the Tire size + Soft Shift points. I DID not change the Speed limiter or Throttle Limiter. No other changes that were available were made. At the time is was happy because it basically got rid of the clunk when the transmission would shift at certain times upon quick on and off acceleration moments. Also the throttle response was much better. This was done somewhere around Sep of 2019. Next up was the Throttle body spacer and cold air intake. Both installed at the same time. At this point it turned into a completely different truck. I believe it cut the 0-60 down by about a second. I did notice hearing a higher amount of back pressure in the motor. It didn't seem to be enough for a concern. Also it seemed to not fall into V4 mode as much as in the past. Last was the exhaust, I had it professionally installed, They cut the 3rd Catalytic converter out added 2-1/2 pipe to approximately the same OE muffler location added the muffler a Y pipe and dual 2-1/2 pipes to (cowboy cut tips, Not that this matters). At this point I have to be pretty heavy on the accelerator to take off and its falling into V4 mode constantly. In my opinion exactly opposite when it should be. I went by a performance shop and asked some questions. they want me to pull the diablo tune and do a custom tune (Pay Me). They also mentioned there is an update for the I3 that allows you to turn off the V4 mode. When the guy connected the tuner in the truck after installing the update on the tuner from his shop PC he mentioned that it was asking for a new license purchase. " He couldn't do anything for me." I honestly was in to much of a hurry when I did the tune. I didn't really keep up with what all was going on during installing in the vehicle or even if I registered the product. Lesson learned. At this point I have contacted Diablo Sport via email awaiting a response. Basically just looking for advice on which way to go at this point. I'm currently on the fence about adding a leveling kit and after market rims and tires. Which in my mind would require another tune. Thank you ahead of time for any and all that take the time to respond. -
Hello, Everyone Just Wanted to share a video I was meaning to make for some months now, I lost a GoPro Camera on the process, so I had to save for a new one to make this video. If you like the video, a subscription to my YouTube Channel is always appreciated! This is my exhaust set up -Speed Engineering Long Tube Headers (1 7/8" Primaries to 3" Collectors) -Dual 3" X Pipes -Dual 3" Magnaflow Mufflers (PN 14419) - True Dual Exhaust to 3.5" Tips This is how she sounds while towing: Brief Exhaust clips: Thank you all for watching -
Hey guys n gals...new to the site. This is my second GM truck but doing a VASTLY different build on her. My first truck is an 05 Colorado Xtreme drift truck, while this one is a 2018 Sierra 1500 Z71 Prerunner build that's my daily (it's the 5.3, not the 6.2) My question is...which exhaust is better for pure, clean loud while maintaining a low, angry tone when I get on it? I know Magnaflow is a straight through so no "restriction" while Flowmaster is baffled for tuned tone. I loathe exhaust "pop n bang" like glasspacks and whatnot...so im trying to avoid sounding like every cheap, clapped out beater truck in my area. I am specifically looking for as low and angry as I can get, but clean and clear. I notice a LOT of trucks here go for the "NASCAR" sounding kits and that's a bit too high pitch for me. I can cut and dump, so I can play with how "loud" it is, but which is best for deep, low, growly sound at all times? -
Build List: 2018 Chevy Silverado 1500 2wd 5.3 V8 3.42 Gears Superchips Programmer Pedal Commander Magnaflow Race muffler w/ Dirt Skum Bezel/Tip Bedside Exit Window Tint Plasti Dip Emblems Stubby Antenna Custom Bumper/Skid Plate Method NV 305 17" Falken Wild Peaks 315/70/17 Front: Dirt King UCAs CST 3.5" spindles King 2.5 OEM coil overs Rear: King 2.5 OEM Piggyback
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Replaced the stock muffler with the Magnaflow 11229 which has 3” in and out. Initially, the exhaust shop removed both flappers. It sounded very deep and rumbly but a bit louder than I preferred. The drone especially on the highway was unbearable.After emailing Magnaflow support, they recommended I have the shop put the flappers back on so I had both flappers welded back in. The flappers completely eliminated the drone but did quiet down the muffler quite a bit. Now, it’s about 70% as loud as the GM performance exhaust which is the perfect level of loudness I was aiming for. I didn’t want anything obnoxious. Sounds really good when you put your foot in it. Cold start (attached) is equally as lively. If you find the GM performance exhaust a bit too loud for you, then this mod will be the perfect volume level. Just save yourself the headache and money by having the shop install the flappers from the get go. Cost me $220 for muffler and install. $80 to weld the flappers back in. All in all, very pleased with it. AT4 Exhaust.mp4
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Hello all, So I’m currently running the 12909 Magnaflow 3.5” 22 inch muffler and have been eyeballing the Magnaflow 15278 catback system for the RCSB Sierra. The problem is that the catback comes with an 18 inch muffler rather than a 22 so I expect that it’d be louder, but by how much? I currently really like the sound of the 22” muffler while running LTs and a catless y-pipe but I’m afraid that if I decide to fork out money for the catback it would just be way too loud. Anybody ever used an 18” inch Magnaflow with long tubes? -
So I finally saved enough money to get myself a set of Headers and went all out on a fully built 3" exhaust system for my 5.3 Yes, maybe the 1 7/8" Primaries and the dual 3" pipes are too big for the 5.3, but the fuel milage got a bit better and I love how the truck sounds, below is the video about it. So, what do you guys think? Did I over do it or is it cool? one of the reasons I went with this set up is because I didn't seem to find anyone else who had it
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Hey everyone, I need some advice! I've spent countless hours using the search function, sending PM's to members (and you guys don't need to respond again if you don't want to), and listening to YouTube videos (which suck because you can't hear what they sound like from inside the cab going down the road)...but I still can't make up my mind! I want to do a muffler swap on my truck (details in signature). I don't want to spend the money on a full cat-back system...I'm just going to swap the muffler and cut the factory tail pipe so it dumps over the rear axle. I want the sound to be deep and aggressive under acceleration....but close to stock (no drone) while cruising....and without any goofy stuff going on when it switches to V4 mode. My budget is around $200. I've narrowed my choices down to 5 different mufflers....and will explain my concerns & reasons for hesitation with each one. In no particular order: Magnaflow 22" 12589 - I'm concerned about it being too quiet (unless I'm at WOT) for people to even notice, and also worried about drone while cruising (I've heard too many people that complained about magnaflows having drone) Borla Sport 19131347 - I'm concerned about it being too loud in the cab while cruising and switching V8/V4 (or just too loud in the cab in general) Borla Touring 19131346 - Basically just concerned that it's going to be too tame, and I won't hardly be able to tell any difference from stock. Not worried about the drone with this one though. Dynomax VT 17949 - I'm worried about the spring/valve assembly breaking or rattling...and having to get it fixed or replaced after a short period of time. I like the concept, but the moving parts make me nervous. Dynomax Ultra Flo 20" 17233 - Can't find a single sound clip of this muffler on a 5.3; worried about drone and V8/V4 noise I would appreciate any advice (or sound clips) you all can provide. I'm a nervous wreck over this situation, and I can only afford to do this once! Also, please skip the comments about Corsa (I know they're awesome, but I refuse to spend that much money on a muffler) and straight pipes (been there, done that...over it). Thanks in advance everyone! -
Sold my 2015 Silverado a few weeks ago and bought a new GMC Sierra SLT with the z71 package and the 6.2L v8! Had the camper shell moved over and sold the Silverado to my dad. It's been a great change so far. Nicer interior so my wife and daughter enjoy it. It's much quieter with the active noise cancellation, and the thing just SCOOTS! My 5.3 that i had before was modded and would move pretty quick but this 6.2 just puts it TO SHAME. Installed an AFE Momentum GT Intake on it a few days ago and it's even better. Just cracked 1000 miles over the weekend and it's already better on gas mileage, ride quality and everything in between than the silverado was. Very excited for the modifications to come. Looking to add some fox coilovers to all 4 corners in the next week or so, which will level it out and lift the front end. Will then upgrade to 10 ply tires, probably a good bit taller than stock. (thinking about cooper at3 XLT's currently in probably 275/65R20 or 285/60R20) Then planning to put airbags on the back for towing. Still undecided on exhaust setup, but will plan to do that and probably tune it in the future as well. Anyways, heres a pic of the truck when i picked it up. i'll post some pics of the intake after installation as well.
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Thinking about doing an intake, exhaust, and tune to my new-to-me 2017 Sierra 1500 5.3L 8 speed. I miss the throttle response my 2013 6.2L had, it would lurch forward at the slightest tap of the gas. I also want to hear the engine, its so quiet! Cold air intakes seem to be disputed for having any performance gains, so are they really worth the $$$ in terms of better air flow? healthier engine? sound? any words of wisdom? Your $0.02 is always appreciated! I'm looking at the Magnaflow 15267 catback as it seems to sound pretty good for what I'm going for. I've read that there is a flap in the factory exhaust system that creates back pressure for AFM shift into V4 mode. I do like V4 mode and would not want to go away with it. How can a catback system integrate this feature? Also, what would be the rough performance improvements if any from a catback exhaust? Any other options that would sound similar and perform better/keep V4 mode for around the same price as Mgnaflow (~$800)? As for the tune, I know ZERO about tuning but do want to get rid of the rev limiter, speed limiter, get some performance gains without having to put midgrade or premium fuel in. How does the tuning process work? about how much do they cost? how can it be adjusted in the future? I assume anything like this would void some sort of warranty? Anyone do something similar and can attest to their experience with an intake, tune, exhaust? -
Stone Blue Metallic Blue 2015 GMC Denali customized
Johnathan Williams posted a gallery image in General/Off Topic
Hi I had my Denali truck shipped from W.V. to here in North Carolina because apparently the Blue Denali is a rare color to find already. I also wasn't a fan of the Black Chrome 22" rims so I got the 2009 version 8 spoke 22" rims to match all my chrome trim. I had a 18" MAGNAFLOW one in,two out dual exhaust straight out the back. I love the choice and we are enjoying it so far!
