Jump to content

Just installed 70 series Flowmaster on 5.3

iCryWheniGoPoop

By iCryWheniGoPoop
in Engines & Drivetrain

Recommended Posts

CAtaylor Enthusiast

CAtaylor

Posted
Posted

Beautiful truck and very nice sound. I have always loved the sound of a flowmaster. I have had them on every gas burner i have owned except for the Mazda B-2500 and even that was tempting just to see how it would sound.

  • Replies 38
  • Created
  • Last Reply
Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

 

Pretty strong wheel spin from a dig with those 3:08 gears. The shifting is definitely better. My question is how did you log a best MPG of 35? Were you going downhill in neutral for a mile? My best on a normal highway here was a best of 24 mpg.

 

 

 

That was logged during my trip to NC from here in OK. I wasn't doing anything out of the ordinary as far as driving but 40 hwy does hit a few small mountains along the way. My 50 mile is 27 and my 400 mile is 22 or 23 and some change.

 

As far as wheel spin, it has tamed down a lot since I swapped my 18" wheels yesterday for 22's with 305-40's

 

 

Do you think that the high MOG rating is purely from the exhaust being so unrestrictive? Or did u tune it to be more efficient for the ride?

 

 

Sent from my iPhone using Tapatalk

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
  • Author
Posted

Do you think that the high MOG rating is purely from the exhaust being so unrestrictive? Or did u tune it to be more efficient for the ride? Sent from my iPhone using Tapatalk

I just tuned the truck and installed the exhaust this week and haven't gotten a good estimate of MPG. All those MPG readings were in purely stock form, stock tune, tires and with stock exhaust. When I finalize my tune (working on the E85 side of it now) I will start reporting any gains in mileage that I see.

cmpcpro Enthusiast

cmpcpro

Posted
Posted

I just tuned the truck and installed the exhaust this week and haven't gotten a good estimate of MPG. All those MPG readings were in purely stock form, stock tune, tires and with stock exhaust. When I finalize my tune (working on the E85 side of it now) I will start reporting any gains in mileage that I see.

I know you talked about not wanting to void your warranty by tuning.. Have you discovered that tuning won't void it or you just decided to give up the engine/trans part of warranty? Just curious, thanks.

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
  • Author
Posted

I know you talked about not wanting to void your warranty by tuning.. Have you discovered that tuning won't void it or you just decided to give up the engine/trans part of warranty? Just curious, thanks.

 

You are correct, I was on the fence, mostly because it is a first year production with a new engine design. If I would have bought a 2013, I would have been plugging my laptop in while they were getting the paperwork ready for me to sign at the dealership.

Warranty issues? Well, if GM engineering requests that the dealership check the CVN Log then yes, My drivetrain warranty will be void but... I plan on some sort of a wicked build this fall and do not expect GM to eat an engine/tranny because my truck put out 200hp more than it was designed. On another note if I tapped into the ECU just to recalibrate my speedo and had my warranty voided for that, I may get a little upset.

 

I get tired of saying it and I'm sure most people are tired of hearing it, You have to pay to play and even more so now that GM is onto us. Good luck with your decision, if you have any other questions that you don't want to hear the answer to, don't hesitate to ask. LOL

 

Steve

cmpcpro Enthusiast

cmpcpro

Posted
Posted

I see, so basically this is the first year GM can tell if it's been tuned and reset? Also curious/excited to hear your plans for this fall.

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
  • Author
Posted

I see, so basically this is the first year GM can tell if it's been tuned and reset? Also curious/excited to hear your plans for this fall.

In the half tons.. Yes this is the first year but they have been busting Duramax truck tuners since 2008 and Camaros/Vettes since 2010. It was only a matter of time.

 

Build... Well... I actually have a couple 67mm .87 A/R split housing t3's sitting in my garage. They were specked for my ls6 in the cts-v but I went single on it instead. My original plan was to go NA but shit, these are some expensive ceramic ball bearing dust collectors sitting here in my garage, so I'm leaning towards that right now.

Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

Dang it. I was considering getting mine tuned until I read through some of the new posts on this thread :-( just got the truck, don't really want to void the warranty just yet.

 

 

Sent from my iPhone using Tapatalk

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
  • Author
Posted

Dang it. I was considering getting mine tuned until I read through some of the new posts on this thread :-( just got the truck, don't really want to void the warranty just yet. Sent from my iPhone using Tapatalk

 

I don't blame you a bit. The peace of mind for just having the warranty is worth quite a bit. It bothered me almost every day though, knowing that I had the means to turn this 5500 lb. slush box into something fun to drive.

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
  • Author
Posted

ICRY,

You ever get a pic of the third cat removal?

 

Mike

Sorry, I did not. I was going to do it this weekend when I painted my calipers but it snowed all day Sunday where I was at in SW Missouri and the truck is covered in dirt/mud. If I can get off work before dark tonight, I will crawl my fat ass under there and snap a couple pics.

Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

What I find odd is that they catch on to our tuning but don't catch on to the poor projectors that they are putting in these new trucks. Or at least they should catch on that most people now a days prefer HIDs over Halogens, especially for the Sierra. I mean they put a yellow light in the middle of two white LED strips. Way to go GM

iCryWheniGoPoop Enthusiast

iCryWheniGoPoop

Posted
  • Author
Posted

ICRY,

You ever get a pic of the third cat removal?

 

Mike

Ok... Here it is. He cut a pipe to fit the factory connecting flange pipe and stepped it up to the big ass factory pipe at the Y-Pipe.

F2ABB069-4520-4453-BB59-31118BCD3E17.jpg

mzodarg Senior Enthusiast

mzodarg

Posted
Posted

Sorry, I did not. I was going to do it this weekend when I painted my calipers but it snowed all day Sunday where I was at in SW Missouri and the truck is covered in dirt/mud. If I can get off work before dark tonight, I will crawl my fat ass under there and snap a couple pics.

LoL no worries...when you get a chance.

 

Mike

mzodarg Senior Enthusiast

mzodarg

Posted
Posted

Oops, just aw the pic of the 3rd cat removal, I'm gonna take mine by this week sometime and get it cut out!

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • newdude
      Seems to be Missing a lot of Updates

      By newdude · Posted

      Based on what I can tell, yes.   As for updating it, its a mixed bag.  Updates do fix a lot of issues, but occasionally can create some oddities.  They do more good than harm though overall.     Here's what the most current one does and a  V171 Improvements Important: Improvements will vary by model, build configuration, system, and sales region. Not all vehicles have all features. OnStar and Wi-Fi may not work after remote start CarPlay may not automatically reconnect Part of the Driver Attention messaging screen may be in English even though the language is set to something else XM may not work After a dead 12V the radio may set to Arabic at each startup Bluetooth contacts might not be able to sync with the vehicle During an OTA the 12V battery may drain Customer might see a screen telling them to return to the dealer After changing the Wi-Fi SSID or password a device may not disconnect If a device is connected on the 2.4Ghz band, nothing will connect to the 5Ghz one, which could show as slow Wi-Fi speeds Customers might have noticed Wi-Fi dropping in certain areas and reconnecting later Customer might see the top of the screen blinking during Android Auto Android Auto may not connect CarPlay audio might momentarily cut out The "Add Phone" button may be grayed out The radio may not start up   V167 Most Notable Improvements:   Outside Air Temperature is incorrect. -You may see a popup message for Engine Shift. (Corvette Only) After changing the exhaust sound they get a popup that "mode change not applied", even though it was. -When changing volume, the volume bar is for Traffic instead of Audio. -(Corvette Only) Improvements to the placement of buttons and text. -If the customer receives the message "Apple CarPlay Could not connect", the cursor might move in the opposite direction than expected when using the control knob. -Android Auto automatically starts playing their music, even though they have turned that off in settings. -Intermittently they have a red OnStar LED with no OnStar function and/or no audio. -The minimum length of the Wi-Fi password was increased to 12 characters. -The popup message "Driver Attention Check, check your mirrors or Super Cruise will shut down" may not have come up on the display when it should have. -Startup animation added for 20th anniversary of the V-Series on Cadillacs. -The Navigation app received location improvements when going under long underpasses. -In the Navigation app there are filters for charging points that the vehicle cannot use.   V164 Most Notable Improvements Most notable improvements contained in this release may include: Apps Intermittently, an “SD Card Removed” message will pop up in the Navigation app. While in the audio app, the radio may stop working. Trailer Tire Pressure sensors may not be learned in the Trailer app. Not being able to return to the home screen while in the Camera app. After an ignition cycle, the radio might go to a black screen or stop working if using Sirius XM. Spotify icon truncated on Audio app.   SXM When changing power modes with the ignition switch, the HVAC pop up might appear. During startup, the radio will show the brand splash screen then go blank. Receiving a confirmation pop-up when changing drive modes. A “Return to Dealer” message may appear on the radio screen. SuperCruise setting toggle may not work. System After an ignition cycle, the radio might go black or stop working if using Sirius XM (SXM). Settings When performing a factory reset, the radio may stop working. After performing a factory reset, the radio may stop working when trying to switch users. When trying to go into the Language section quickly after startup, the radio may stop working. Projection Wireless CarPlay cannot be connected after unpairing another wireless Android Auto device. When the Android Auto screen comes up to connect wirelessly, the screen may freeze if the Cancel button is pressed. Removed the Apple CarPlay Cannot Connect screen when a device fails to pair during the autoconnect process. CarPlay information may not show up in the audio app. Near Field Communications (NFC) chime may be heard when NFC does not work. The Cannot Connect screen does not pop up after the first connection on wireless CarPlay fails. Apple CarPlay is now functional in Guam. Over the Air (OTA) When a software update is cancelled, the downloading logo may still be displayed. Energy When using the Energy app, the radio may stop working. When plugging in the vehicle, the display might show “Now” instead of “Charging Upon Plug In.” Instrument Cluster Voice recognition can be started while on an OnStar or phone call. When downloading contacts, there is a progress bar and circles on the Recents page of the cluster. The temperature on the cluster and the display may be different. After receiving and ending a call on the secondary paired phone, the cluster may get stuck on the phone menu. Bluetooth Intermittent Bluetooth connection loss.
    • AndrewF
      Front End Rattle

      By AndrewF · Posted

      Looking for help troubleshooting a metallic like front end rattle. Figured I’d see if anyone had thoughts before I schedule an appointment with the dealer.   The rattle is fairly loud and occurs primarily when the front driver side wheel hits a bump, even fairly minor road seams. Sometimes does it when the passenger hits a bump but I don’t believe when the rear hits. Rattle still occurs when foot is pressing brake peddle so I think that rules out the caliper rattle I’ve read about. I’ve also checked the running boards and they are tight.   Most noticeable at slow speeds.    Any insight is appreciated. 
    • KARNUT
      What did you do to your "other" car (aka musclecar) today

      By KARNUT · Posted

      We try to make cruise the coast. It’s where our favorite casino is. I only want to spectate. Never took a car. Always had one to take. I belonged to a club once. Even when I used to drag raced. It was during test and tune. Probably because I’m not a night owl, party person. 
    • RyanbabZ71
      What did you do to your "other" car (aka musclecar) today

      By RyanbabZ71 · Posted

      We had a pretty big cars and coffee in Indy this past weekend.  Pretty much anything and everything was there.  
    • Atlas
      What did you do to your "other" car (aka musclecar) today

      By Atlas · Posted

      Good looking Olds, and TRX!   I haven't been into car shows either. I'm probably not a convert but I did push myself this year to attend a few select events to challenge some assumptions and try to experience car-based social clubs in a different way. I joined up with the local Hagerty group for some cars/coffee events, group drives. A month ago I showed my '94 Camaro I rescued last fall at Radwood. Had a good time, but, there was some sitting around with the car and that's the part of shows I don't enjoy as much. I prefer to be a spectator, walk the show, grab a burger, go home.   Radwood was the only era-limited event, but where it had strict model year limitations, it made it up in variety. Having Jason Camissa there was also a hoot.   Where I see old 50's car shows, doo-wop and winga dinga music stuff fading out, same with "only" vintage muscle clubs, it seems to be the activity-based clubs/events which are gaining strong popularity. Places where all cars and interests come together.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...