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Borla Back Cat Systems

This is a discussion on Borla Back Cat Systems within the External Engine forums, part of the LSx Technical Help Section category; Originally Posted by Zboner its called free ram air how do u do it.. what do u cut off......

  1. #21
    Member ls1speedster's Avatar
    Join Date
    Apr 2007
    Bethany, IL

    2002 trans am

    Quote Originally Posted by Zboner View Post
    its called free ram air
    how do u do it..
    what do u cut off...

  2. #22
    Junior Member tznutts's Avatar
    Join Date
    Oct 2007
    Piedmont, OK

    Midnight Blue
    1999 Trans Am M6

    Quote Originally Posted by ls1speedster View Post
    how do u do it..
    what do u cut off...
    Go here...

  3. #23
    Senior Member Tyler_LS1's Avatar
    Join Date
    Sep 2006
    Canby, Oregon

    1999 Camaro SS-M6 #1775

    Quote Originally Posted by Zboner View Post
    what where did you get this HP thingy cause those ratings are totally off for a stock LS1 car. should be about 300-310

    Disregard my post its from a different car, sorry bout that

  4. #24
    Junior Member Websy21's Avatar
    Join Date
    Oct 2007
    Alberta, Canada

    Metallic Pewter
    2001 Trans Am WS6

    I like my borla catback, LT's and ory, I have an electric cutout with it to and could never go to anothe setup imo.

  5. #25
    Super Moderator
    mrr23's Avatar
    Join Date
    Jul 2005
    orlando, fl

    2014 camaro 2ss/rs

    Quote Originally Posted by tznutts View Post
    I have a 1999 Trans Am. I am looking at changing the back cat portion of my exhaust with a Split Rear Exit Borla back cat, Part Number #14780.

    Current Mods are:
    Granatelli 350200 Cold Air Intake Lid
    Cut out the bottom of my air box, K and N filter
    Taylor 8mm wires
    cooling bypass line on my TB

    I am about to polish the TB and cut back the EGR.

    My question is, is the cost vs. power gain worth it? It will cost me around $900 for this system. Should I invest in another direction? Is there a better system with less cost? I really like the tuned sound that comes from these systems and my wife drives the car on nice days and I want the option of being able to quiet it down with the block off plates.

    Please advise...

    for a little more, you can get the bassani tru-duals and pick up more power and have way less interior drone. i used to have the adjustable 3" borla on the wife's car. with headers and no cats, it got way too loud inside the car. swapped to the bassani tru-duals and picked up 15 rwhp and cut the interior noise almost in half.

    you can get the bassani for $949.00 in T439 stainless steel, or $779.00 in aluminized from here:

    here's the dyno sheet comparing the two. this was on stock tune as well.

    Cold Air Intake, Muffler Delete, Vinci High Performance Dual Valve Springs, Hardened Pushrods, Yella Terra 1.85 Rockers, Some Hydropdipped Stuff, Strut Tower Brace, Some SS Badges, boost/vacuum gauge, fuel pressure gauge

  6. #26
    Member SpeedWorld's Avatar
    Join Date
    Aug 2007

    2001 Camaro SS

    I would suggest buying some longtubes with that $900. Your car will have some much needed oomph to it. However, you will need an exhaust after that, so I guess either get the exhaust now or the headers. Either way you will need both, they are much needed mods and the best bang for your buck!
    2001 Chevrolet Camaro SS M6
    Thunder Racing 224/224 .563/.563 112 LSA
    FLP longtube headers (No cats) and y pipe
    GMMG catback
    Underdrive pulley
    LS1 motorsports lid
    PRO 5.0 with Lous Short stick
    Lower control arms,adjustable panhard bar, subframe connectors.
    NITTO 555RII's

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