Jump to content

Cai And Catback True Power Gains?

importkiller76

Recommended Posts

importkiller76 Enthusiast

importkiller76

Posted
Posted

Hey guys I was just wondering what kind of power gains I can actually expect from these two mods? Intakes usually claim to give about 10-15 more hp (I know K&N claims 17.4 hp for the 4.8). And I'm going with the flowmaster dual exhaust cat back system which I would think flowmaster would claim approx. the same gains. So what can I actually expect here? And just for the record I am working with justin on a tune that we will throw on once these mods are done so i'm sure the truck will be not too bad at all!

66nova Senior Enthusiast

66nova

Posted
Posted

I talked to Justin (Black Bear Performance) about this a lot before I got my tune. He has dynoed a lot of systems.

 

He said with the combo of a CAI and Cat back he usually sees in the neighborhood of 15-20 hp gains. With the majority of that being the exhaust. He also said the exhaust tends to help throughout the power band and the only gains seen with a CAI are at peak hp.

 

That being said, I love the Flowmaster sound, but I would not count on a big power improvement with them. They really don't flow that much better than stock. I have been a flowmaster guy for years because of the sound. I have had them on 5-6 different vehicles and I will not have them again. I have seen a car at the track pick up 4 tenths of a second (NO EXAGGERATION), but changing his exhaust from Flowmaster 40 series to Magnaflows. Now that is not going to happen in every case, but it is a good example of the benefits of a straight through design.

alaska511 Senior Enthusiast

alaska511

Posted
Posted

I have spent quite a bit on my GMPP exhaust and CAI.

 

Did I get the power? I doubt it.

 

Do I regret my purchase? Not one bit!

 

It sounds cool! :thumbs:

 

Get a Blackbear tune and it will all come together for a great feel.

Archived

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

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,835
    Total Members
    8,960
    Most Online
    ballencd
    Newest Member
    ballencd
    Joined

  • Who's Online   6 Members, 0 Anonymous, 716 Guests (See full list)

  • Latest Articles

  • Posts

    • KARNUT
      AFM Disabler Question

      By KARNUT · Posted

      I’m doing an experiment on a vehicle I don’t have much money in. I’m going by the premise that after they last 100K miles they were no mechanical problems with assembly. Or defects with the parts. With oil changes by the minder for the first 127K miles when I acquired it. I quickly went through low mileage oil changes then settled on 5k oil changes with close to 170K miles on the vehicle currently. I did have the option to turn off the cylinder deactivation. I didn’t on this vehicle because in ECONOMY mode at least half the time. It should be a no brainer frequent oil changes are the key. The manufacturer gets away with the long oil changes with its severe service  maintenance. Just ask them what is normal. 
    • baglie1
      Hot air constantly blowing through floor vents, drivers side only?

      By baglie1 · Posted

      Even set to "recirculated", the air pushes out and is hot. I have noticed that sometime it doesn't want to switch between recirculated/vented air. Say it is set to Circulated Air and I want to switch to Vented, when I click the Vented button, it just quickly lights up/clicks and immediatly switches back to Circulated. It's done this a few times now. So maybe it is an actuator getting stuck? But then, that doesn't explain the hot air when everything is off does it?
    • Chuck FB
      Gas Prices

      By Chuck FB · Posted

      I wonder what the price is out at the coast, Big Sur or other out of the way locations as I bet they are charging quite a premium over the in land pumps. 
    • Chuck FB
      2 speed transfer case optional now?

      By Chuck FB · Posted

      Were you looking at the HD trucks on the GM website or the half tons as that makes all the difference. As far as I know there are only two options for the HD trucks and that is the standard 2 speed transfer case or the 2 speed transfer case that has the added 4 high auto feature and they put that transfer case by default into the LTZ and High Country although its optional in the LT and not sure if its available in the work trucks.    The half tons, that is where its been a total mess in my estimation for a few years now with most trucks below the top trim having the single speed transfer case as standard but with the option of having the two speed such as one would get by choosing the Z71 package, however then not being able to get the two speed transfer case with the towing package unless it was a higher trim truck AND had the 6.2 gas so one could combine the towing package gearing diffs with the two speed transfer case. Having said that if its a trail boss package then it gets the two speed transfer case but not necessarily able to get the tow package as it would depend on trim level and engine chosen. Believe me, people have bought the GM half tons assuming "of course it will have a two speed transfer case" only to find out after when they really pay attention to what they now own .... crap, there is NO low range !.    I don't believe Ford or Ram have gone that way yet with their half tons but like I say its been a few years now that GM has done this with the half tons. 
    • Atlas
      Gas Prices

      By Atlas · Posted

      $5.19 for regular...

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...