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Mods hp?

This is a discussion on Mods hp? within the External Engine forums, part of the LSx Technical Help Section category; Ok...sorry for the boring how much hp thread but I have searched the forum and can't come up with a ...

  1. #1

    Mods hp?

    Ok...sorry for the boring how much hp thread but I have searched the forum and can't come up with a good estimate. I am hoping for 10-15rwhp. Sound reasonable?

    Here is what I will be doing this weekend:

    FRA mod
    SLP Lid and K&N filter
    ported MAF housing

    PS: Havent picked up the filter(50bucks), will this yield enough hp to justify itself?

  2. #2
    MEMBER 5150's Avatar
    Join Date
    Aug 2005
    Visalia Cali

    2000 Z/28

    sounds reasonable.those are some of the first mods i did and i noticed a good seat of the pants feeling.yes the k&n filter is worth it. i descreend and cut the maf halfs and polished it out, shortly after that the car started pinging on the top end. i had a spare maf housing that was just descreened so i put it in the car and it stopped the pinging. i would personally recommend not doing anything to maf housing aside from maybe just polishing it out but thats just mho. good luck!

  3. #3
    Senior Member SeVeReDiStOrTiOn's Avatar
    Join Date
    Aug 2005
    Roseville, CA

    05 Wrangler
    00 Z28 sold :-(

    7-10rwhp sounds about right...especially over the stock system. I noticed a stronger pull up top when I did the fra and a lid. Do a good tune up while you're at it if you haven't already. Wouldn't do anything to the maf if I was you....descreening shouldn't hurt unless a big piece of debris gets in there

  4. #4
    Junior Member RGR Pete's Avatar
    Join Date
    Aug 2005

    2001 Pontiac Trans am

    I won't buy a K&N, You won't get a gain for the money spent. I could search and give you all the math with surface area formula's. + oil on the mass air. My .02

  5. #5
    Well I got the lid on today. Dont really feel much different. Looks nice. I decided against the MAF porting. Holding of on the FRA mod. Still thinking about the K&Nfilter.

  6. #6
    Junior Member Ponti-MANIac's Avatar
    Join Date
    Feb 2006
    In your head
    2000 Pontiac Trans-am WS6

    You likely won't notice the difference until you do the FRA mod. That will enable your LID to go to work for you.
    Oh yeah the Holley "Hole Shot" filter is just as good ( if not better) than the K&N and is cheaper.
    Last edited by Ponti-MANIac; 02-21-2006 at 08:21 AM. Reason: update

  7. #7
    Senior Member Danger731's Avatar
    Join Date
    Aug 2000
    Wish I did a baseline on mine before lid / catback / filter.
    04 C5 A4 Torch Red

    2009 CTS4 Ice Black

    2013 1500 Silverado Z71

    02 Z/28 M6 Onyx Black All Options - Sold

  8. #8
    I Fixed Da Rear jimbo98z's Avatar
    Join Date
    Aug 2005
    Raleigh, NC

    Mystic Teal
    1998 Z28 M6

    When I did a lid and filter, I noticed better throttle response down low more than top end or actual accelleration.

  9. #9
    Join Date
    Dec 2005

    1973 Camaro

    I had my K&N off the first time I put it on the dyno. I did try a dyno pull with no filter at the time and gained less than 5hp. The last dyno we did several pulls two w/o a filter, the highest number in in the sig and was with a Fram paper filter installed. I still have the K&N somewhere in the shed but have no future plans to use it.
    '73 Plain Jane Camaro, Gen III, T56
    '02 WS6, M6
    All gone but not forgotten

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