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Thread: Borla Pro XS Mufflers

  1. #1
    Senior Member ls3gxphouston's Avatar
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    Default Borla Pro XS Mufflers

    Anyone have them? I am looking to add the deep Borla note like in their catback but will be installing Kooks LT and xpipe.
    G8 GXP SRM M6 #1816
    415 rwhp / 406 rwtq
    RotoFab CAI; Kooks LTH / Catted X-Pipe; Borla Pro XS Mufflers
    Tuned by G-Force Motorsports

    G8 GXP PBM M6 #788 - SOLD
    451 rwhp / 425 rwtq
    Katech Cam; RotoFab CAI; Kook's 1-7/8" Mids; Borla Catback
    Tuned by G-Force Motorsports

  2. #2
    Addicted Member fengstang's Avatar
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    Wickedg8 has them.
    Blown by Jessika
    Tuned by Pat G
    "Stock" MGM G8

  3. #3
    Senior Member ls3gxphouston's Avatar
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    Quote Originally Posted by fengstang View Post
    Wickedg8 has them.
    Thanks, Ill pm him, how did those spacers work out?
    G8 GXP SRM M6 #1816
    415 rwhp / 406 rwtq
    RotoFab CAI; Kooks LTH / Catted X-Pipe; Borla Pro XS Mufflers
    Tuned by G-Force Motorsports

    G8 GXP PBM M6 #788 - SOLD
    451 rwhp / 425 rwtq
    Katech Cam; RotoFab CAI; Kook's 1-7/8" Mids; Borla Catback
    Tuned by G-Force Motorsports

  4. #4
    Addicted Member fengstang's Avatar
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    Dude they are nice man. Thanks again.


    Ps. Need to leave you a feedback. Will do that when I get on the pc.
    Blown by Jessika
    Tuned by Pat G
    "Stock" MGM G8

  5. #5
    Beyond Help AVIDMOTION's Avatar
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    There is a lot of info on those mufflers on several different sites. I am not sure how they sound but out of 8 or so top selling mufflers they had the best lowend, midrange and top end hp and tq. There was also charts on Db levels where it showed it was pretty loud. While pricing the top selling mufflers from only two sites, I found the Borlas were about avg with the others, about 79 bucks each. I have the sites and info if you need it.....
    SOLD 5/16 BOUGHT 2013 PP SHO...2009 GT 0-60 4.1,RWHP 381@4765,TQ 416.11@3828= 12.58@109.78 KOOKs 1 7/8 /race CATS, VARARAM & HSRK RESONATOR DELETE/3 INCH X PIPE to MAGNAFLOW SS F:Michilin pilot A/S3, R: Cooper Zeon RS3, VCM Ecm/TCM tune by Troy, Russell SS brake lines, hawk hps/ DBA 4000XS, NGK TR-5, YellaTerra 1.85Rockers PAC 1218, CC 7.450 Pro Magnum Rods, FULL BMR poly Rear/DIFF White BUSHINGS,BMR trailing arms/toe rods.FE3 shock/struts, Billet Catch Can, LOVELL's strut mounts/BMR bushing,UDP Ported&PolishTB,red Alto,CircleD 3000

  6. #6
    Senior Member ls3gxphouston's Avatar
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    Quote Originally Posted by AVIDMOTION View Post
    There is a lot of info on those mufflers on several different sites. I am not sure how they sound but out of 8 or so top selling mufflers they had the best lowend, midrange and top end hp and tq. There was also charts on Db levels where it showed it was pretty loud. While pricing the top selling mufflers from only two sites, I found the Borlas were about avg with the others, about 79 bucks each. I have the sites and info if you need it.....
    Thanks for the info. Do you know the difference between the 40358 and the 40659? Not much info on Borla's site, but the only difference appears to be case size and price.
    G8 GXP SRM M6 #1816
    415 rwhp / 406 rwtq
    RotoFab CAI; Kooks LTH / Catted X-Pipe; Borla Pro XS Mufflers
    Tuned by G-Force Motorsports

    G8 GXP PBM M6 #788 - SOLD
    451 rwhp / 425 rwtq
    Katech Cam; RotoFab CAI; Kook's 1-7/8" Mids; Borla Catback
    Tuned by G-Force Motorsports

  7. #7
    Senior Member ls3gxphouston's Avatar
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    Contacted Borla, the only difference is size.
    G8 GXP SRM M6 #1816
    415 rwhp / 406 rwtq
    RotoFab CAI; Kooks LTH / Catted X-Pipe; Borla Pro XS Mufflers
    Tuned by G-Force Motorsports

    G8 GXP PBM M6 #788 - SOLD
    451 rwhp / 425 rwtq
    Katech Cam; RotoFab CAI; Kook's 1-7/8" Mids; Borla Catback
    Tuned by G-Force Motorsports

  8. #8
    Beyond Help AVIDMOTION's Avatar
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    yea sorry all i know is size counts!-tee hee
    SOLD 5/16 BOUGHT 2013 PP SHO...2009 GT 0-60 4.1,RWHP 381@4765,TQ 416.11@3828= 12.58@109.78 KOOKs 1 7/8 /race CATS, VARARAM & HSRK RESONATOR DELETE/3 INCH X PIPE to MAGNAFLOW SS F:Michilin pilot A/S3, R: Cooper Zeon RS3, VCM Ecm/TCM tune by Troy, Russell SS brake lines, hawk hps/ DBA 4000XS, NGK TR-5, YellaTerra 1.85Rockers PAC 1218, CC 7.450 Pro Magnum Rods, FULL BMR poly Rear/DIFF White BUSHINGS,BMR trailing arms/toe rods.FE3 shock/struts, Billet Catch Can, LOVELL's strut mounts/BMR bushing,UDP Ported&PolishTB,red Alto,CircleD 3000

  9. #9
    Senior Member ls3gxphouston's Avatar
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    I got the mufflers welded and installed today with 3.5" tips. The sound is exactly what I was looking for. I had a Borla catback on my previous GXP and loved the deep rumble. This time I am doing Kooks LT with Xpipe and wanted that same deep rumble so I figured the most likely muffler to do it would be a Borla.
    G8 GXP SRM M6 #1816
    415 rwhp / 406 rwtq
    RotoFab CAI; Kooks LTH / Catted X-Pipe; Borla Pro XS Mufflers
    Tuned by G-Force Motorsports

    G8 GXP PBM M6 #788 - SOLD
    451 rwhp / 425 rwtq
    Katech Cam; RotoFab CAI; Kook's 1-7/8" Mids; Borla Catback
    Tuned by G-Force Motorsports

  10. #10
    Junior Member Evo8toG8's Avatar
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    Can you get a sound clip? Right now, does it still have the resonators in place?

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