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Magnaflow Vs. Borla

This is a discussion on Magnaflow Vs. Borla within the External Engine forums, part of the LSx Technical Help Section category; hey guys, i'm new to the forum and this is my 1st post. I've got a 00 Z28 (A4) and ...

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    Member 00Z28DC's Avatar
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    Magnaflow Vs. Borla

    hey guys, i'm new to the forum and this is my 1st post. I've got a 00 Z28 (A4) and i'm planning on gettin a cat-back exhaust soon, but of course i don't have a crapload of money to spend, so i've narrowed my decision to magnaflows new quadtip exhaust and borla's quadtip, i just want to know which one will be better in terms of torque and hp improvement as well as sound gratification : ) ?

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    cant go wrong with either, but i would lean towards borla imo, but i really have nothing to back that up with, sorry...

    but i know some of these guys do, GOOD LUCK
    Douglas Charles Horchler

    "Great is the power of steady misinterpretation" Charles Darwin


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    Senior Member Tyler_LS1's Avatar
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    1999 Camaro SS/ Pewter/ #1775 - LS1 6-speed - Predator 3 Custom Tune - Pro 5.0 - LS7 Clutch - 3.90's - Koni's - Strano Springs and Sway Bars - SFC's - Full UMI Chassis and Suspension - LS6 Intake PnP TB - ARH LT's and Kitty Ran Away - Magnaflow.

    12.6 at 112

    http://www.fquick.com/Tyler_LS1

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    Member Z28_SS's Avatar
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    slp loudmouth FTW!!!!!!!!!!!!!

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    Member stephen02ws6's Avatar
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    red with black stripes
    2002 Trans Am WS6

    I have borla on mine and there is someone in my car club with similar car and Magnaflow. Personally i like the borla. The other car's owner said that magnaflow wasnt much different than stock(ws6 exh.). I dont mind the sound of the magnaflow but like the borla sound much better.

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    Compulsive F bomb dropper sgt0704's Avatar
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    price wise, you'd be better off with Magnaflow. you can even find people selling theirs on the boards for cheap.

    and there's a thread on ls1tech where there were numbers posted from a dyno'd mustang. and the differences between the cat backs were litterally 3-5 hp and 3-5 tq. and for the extra 300-400 bucks for a borla, for the 5 hp gain isn't worth it. and those higher numbers
    (4-5) range, were flowmaster.

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    The Bandit Wesman's Avatar
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    I would go with the Magnaflow system. I've heard it on a couple different cars, and it sounds great both with stock manifolds/cats as well as long tube headers. Its also much more cost effective than the Borla, and its stainless steel I believe, too.

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    Compulsive F bomb dropper sgt0704's Avatar
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    hope this helps.


    This test was performed by 5.0 Mustang & Super Fords Magazine, December 2002 issue (page 55) on a '90 Mustang LX coupe with 370hp and 11 second potential. 66 pulls were made for this comparison:

    Muffler Flow Testing

    All tests via an independent lab
    All tests @ 15” wc

    2 “ Straight Pipe 283 CFM
    2 “ Straight Pipe 365 CFM
    2 “ Straight Pipe 521 CFM

    2 ” Typical Bent tailpipe 268 CFM
    2 ” Typical Bent Tailpipe 417 CFM

    2 ” Inlet/Outlet_ Glass Pack Tips- No Louvers- Smooth 274 CFM
    2 ” Inlet/Outlet- Glass Pack Tips-Louvered 133 CFM
    Same as above set for reverse flow 141 CFM
    2 ” Cherry Bomb 239 CFM
    2 ” Cherry Bomb 294 CFM

    2 ” Inlet/Outlet Dynomax Super Turbo 278 CFM
    2 ” Inlet/Outlet Ultraflow Bullet 512 CFM
    2 ” Inlet/Outlet Gibson Superflow 267 CFM
    2 ” Inlet/Outlet Flowmaster ( 2 Chamber) 249 CFM
    2 ” Inlet Outlet Flowmaster ( 3 Chamber) 229 CFM
    2 ” Inlet/Outlet Thrush CVX 260 CFM
    2 ” Inlet/Outlet Maremount Cherry Bomb 298 CFM
    2 ” Inlet/Outlet Hooker Aero Chamber 324 CFM
    2 ” Inlet/Outlet Hooker Max Flow 521 CFM
    2 ” Inlet/Outlet Borla Turbo 373 CFM
    2 1/2" Inlet/Outlet Magnaflow 284 CFM

    Standard OEM 2 ” Inlet/Outlet 138-152 CFM
    Standard OEM 2 ” Inlet/Outlet 161-197 CFM


    The results in HP order:
    1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
    2.Bassani Real Street 373.7 hp/ 333.8 tq
    3.Hooker Maxflow 373.5 hp/ 333 tq
    4.Borla XS 373.3 hp/ 332.6 tq
    5.Magnaflow 372.8 / 332.5 tq
    6.MAC 372.3 hp / 331.5 tq
    7.Flowtech Afterburner 372.3 hp/ 330.1 tq
    8.Hooker Aerochamber 372.1 hp/ 330.4 tq
    9.Bassani 372 hp/ 333.5 tq
    10.Spintech 371.6 hp/ 332.2 tq
    11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
    12.Borla XR1 370 hp/ 334 tq
    13.Flowtech Terminator 369.5 hp / 331.3 tq
    14.Dynomax Ultra Flo 369.4 / 333.2 tq
    15.Flowmaster 369.4 hp / 331.8 tq
    16.Flowtech Warlock 366.3 hp / 325.3 tq
    17.No muffs 365.2 hp / 330.1 tq

    Sound Off in Quietest to Loudest (Decibels):
    1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
    2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
    3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
    4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
    5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
    6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
    7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
    8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
    9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
    10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
    11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
    12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
    13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
    14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
    15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
    16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db)."

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    !!!!!!!!!!!!!!!!!!!!!!!!! ATCharming's Avatar
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    subscribing

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    2 SS's are better than 1 Jays00ss's Avatar
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    love my Borla adjustable. + the quad tips look cool!!!
    2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture

    1971 SS ElCamino 402 Big Block 550HP

    2006 Silverado 2500HD 496 cubic inches of pure muscle

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    Senior Member Tyler_LS1's Avatar
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    Quote Originally Posted by sgt0704 View Post
    hope this helps.


    This test was performed by 5.0 Mustang & Super Fords Magazine, December 2002 issue (page 55) on a '90 Mustang LX coupe with 370hp and 11 second potential. 66 pulls were made for this comparison:

    Muffler Flow Testing

    All tests via an independent lab
    All tests @ 15 wc

    2 Straight Pipe 283 CFM
    2 Straight Pipe 365 CFM
    2 Straight Pipe 521 CFM

    2 Typical Bent tailpipe 268 CFM
    2 Typical Bent Tailpipe 417 CFM

    2 Inlet/Outlet_ Glass Pack Tips- No Louvers- Smooth 274 CFM
    2 Inlet/Outlet- Glass Pack Tips-Louvered 133 CFM
    Same as above set for reverse flow 141 CFM
    2 Cherry Bomb 239 CFM
    2 Cherry Bomb 294 CFM

    2 Inlet/Outlet Dynomax Super Turbo 278 CFM
    2 Inlet/Outlet Ultraflow Bullet 512 CFM
    2 Inlet/Outlet Gibson Superflow 267 CFM
    2 Inlet/Outlet Flowmaster ( 2 Chamber) 249 CFM
    2 Inlet Outlet Flowmaster ( 3 Chamber) 229 CFM
    2 Inlet/Outlet Thrush CVX 260 CFM
    2 Inlet/Outlet Maremount Cherry Bomb 298 CFM
    2 Inlet/Outlet Hooker Aero Chamber 324 CFM
    2 Inlet/Outlet Hooker Max Flow 521 CFM
    2 Inlet/Outlet Borla Turbo 373 CFM
    2 1/2" Inlet/Outlet Magnaflow 284 CFM

    Standard OEM 2 Inlet/Outlet 138-152 CFM
    Standard OEM 2 Inlet/Outlet 161-197 CFM


    The results in HP order:
    1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
    2.Bassani Real Street 373.7 hp/ 333.8 tq
    3.Hooker Maxflow 373.5 hp/ 333 tq
    4.Borla XS 373.3 hp/ 332.6 tq
    5.Magnaflow 372.8 / 332.5 tq
    6.MAC 372.3 hp / 331.5 tq
    7.Flowtech Afterburner 372.3 hp/ 330.1 tq
    8.Hooker Aerochamber 372.1 hp/ 330.4 tq
    9.Bassani 372 hp/ 333.5 tq
    10.Spintech 371.6 hp/ 332.2 tq
    11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
    12.Borla XR1 370 hp/ 334 tq
    13.Flowtech Terminator 369.5 hp / 331.3 tq
    14.Dynomax Ultra Flo 369.4 / 333.2 tq
    15.Flowmaster 369.4 hp / 331.8 tq
    16.Flowtech Warlock 366.3 hp / 325.3 tq
    17.No muffs 365.2 hp / 330.1 tq

    Sound Off in Quietest to Loudest (Decibels):
    1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
    2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
    3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
    4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
    5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
    6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
    7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
    8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
    9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
    10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
    11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
    12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
    13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
    14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
    15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
    16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db)."
    The magnaflow here is all 3" so im assuming it flows better than what this says...

    http://store.summitracing.com/partdetail.asp?autofilter=1∂=MPE%2D15684&N=700+429 4908216+4294908198+4294924667+4294840140+429492342 9+115&autoview=sku

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by Z28_SS View Post
    slp loudmouth FTW!!!!!!!!!!!!!
    I had to cut mine off it sounded SO bad with longtubes.


    Magnaflow is my choice from now on.
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

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    TunedByFrost supporter rel3rd's Avatar
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    Had a Borla adjustable setup...Originally with stock manifolds, cats and stock Y pipe.

    Swapped on longtubes and ORY.

    Absolutely hated the gurgle sound when accelerating, sounded like it was going lots faster than it was...soon afterwards I sold it.

    Swapped back on the stock catback, which actually sounds pretty good with the longtubes.

    Have a Magnaflow setup coming...
    2002 Silverado Z71 ECSB HPTuners tuned by yours truly
    2000 Pontiac Trans Am WS6 6.0, 4L80E, Rear mount Turbo, etc...
    webpage: http://www.fquick.com/rel3rd/

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    Member 00Z28DC's Avatar
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    hey thanks for the help, i think i've decided on the magnaflow quadtip catback system. according to magnaflow, it gives a 17.7 ft-lbs of torque and 13.8 horses and it's gonna cost way less than the borla system. So thanks again for all the help everyones been.

  15. #15
    Rollo Tomassee AKIRA's Avatar
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    Quote Originally Posted by Tyler_LS1 View Post
    Dont forget, his flow chart is for a mustang with 2 2 1/2" pipes.

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    SS Driver aerojt's Avatar
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    Quote Originally Posted by 00Z28DC View Post
    hey thanks for the help, i think i've decided on the magnaflow quadtip catback system. according to magnaflow, it gives a 17.7 ft-lbs of torque and 13.8 horses and it's gonna cost way less than the borla system. So thanks again for all the help everyones been.
    The quad tip is pretty expensive from summit. Almost as much as borla from what i saw.

  17. #17
    Rice Killa JwMonE99's Avatar
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    In my carclub, we get sponderships from borla, being one of the few muscle cars in there borla is pretty much a must for me, plus its FREE lol cant argue with that

  18. #18
    I lika da Chevy's LETHALxLS1's Avatar
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    Quote Originally Posted by JwMonE99 View Post
    In my carclub, we get sponderships from borla, being one of the few muscle cars in there borla is pretty much a must for me, plus its FREE lol cant argue with that
    Dude you told me you had a v6 with a blown head gasket. Did you buy another car?

  19. #19
    I lika da Chevy's LETHALxLS1's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    I had to cut mine off it sounded SO bad with longtubes.


    Magnaflow is my choice from now on.
    I hated the way the loudmouth sounded too. I took the resonator off and put a Borla xr1 on. Sounds great now.

  20. #20
    Member Pitchlock's Avatar
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    Why 300 bucks more for the quad tip magnaflows. Nothing different in performance. Just looks like different tips. They do look nicer but not 300 bucks nicer.
    99 Z28
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