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  1. #1
    Established Member Two Rings
    Join Date
    Apr 27 2010
    AZ Member #
    58251
    Location
    West Chester PA

    Magnaflow Stainless Tips Welded to stock Catback

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    On my MK6 Golf R I was very happy with an aftermarket down pipe mated to the stock catback. I hated the stock tips. I had Magnaflow tips welded on that car. This S3 gives me the same impression. I drove an S3 that has a Unitronic DP mated to stock catback and it sounds delicious.
    I am also not happy with how any of the aftermarket cat backs sound, or their prices.
    I measured the stock exhaust and a few other measurements and settled on the Magnaflow 35123 tips. they are 7.5 inches long, 3.5 inch diameter dual wall stainless with a 2.25 inch inlet which is nearly perfect on the stock pipes where they are round. I ordered 4 and sanded off the laser etched Magnaflow logo and polished them up. Stock tips are 3.5 inch chrome and are oval, the outlet pipes from the muffler are round and 2.25 inch or close probably metric but are then stretched and ovaled to accept the tips. Stock tips are just pressure fit onto those pipes.
    Had my welding buddy help me this morning to chop off the stock tips and mount these. I could not be happier with the fit and look. Next up is a down pipe to get the added sound and power I want.

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    2015 S3 Daytona 1 Package | Unitronic Stage 1+ ECU | Unitronic Stage 1 TCU | H&R Sport Springs | CTS Intake/ Turbo Inlet | APR Turbo Muffler Delete | OEM Resonator Delete/ Flap Mod | Welded Magnaflow Tips | 19x8.5 ET 45 Forgeline ZX3R with 245/35/19 Conti DW | 20% Tint

  2. #2
    Established Member Two Rings m3brad's Avatar
    Join Date
    Jul 22 2014
    AZ Member #
    266845
    Location
    Midwest

    Outstanding job!

  3. #3
    Established Member Two Rings
    Join Date
    Apr 27 2010
    AZ Member #
    58251
    Location
    West Chester PA

    Thanks! Very happy with the outcome. Glad I found a suitable tip that fits nearly perfectly too.
    2015 S3 Daytona 1 Package | Unitronic Stage 1+ ECU | Unitronic Stage 1 TCU | H&R Sport Springs | CTS Intake/ Turbo Inlet | APR Turbo Muffler Delete | OEM Resonator Delete/ Flap Mod | Welded Magnaflow Tips | 19x8.5 ET 45 Forgeline ZX3R with 245/35/19 Conti DW | 20% Tint

  4. #4
    Established Member Two Rings m3brad's Avatar
    Join Date
    Jul 22 2014
    AZ Member #
    266845
    Location
    Midwest

    It's also nice to have such talented friends!

  5. #5
    Established Member Two Rings
    Join Date
    Apr 27 2010
    AZ Member #
    58251
    Location
    West Chester PA

    yes, that certainly helps!
    2015 S3 Daytona 1 Package | Unitronic Stage 1+ ECU | Unitronic Stage 1 TCU | H&R Sport Springs | CTS Intake/ Turbo Inlet | APR Turbo Muffler Delete | OEM Resonator Delete/ Flap Mod | Welded Magnaflow Tips | 19x8.5 ET 45 Forgeline ZX3R with 245/35/19 Conti DW | 20% Tint

  6. #6
    Veteran Member Four Rings coolwater's Avatar
    Join Date
    Nov 06 2009
    AZ Member #
    50333
    My Garage
    2023 X3 M40
    Location
    NYC / DC/MD/VA

    Looks great man. Good job!
    We really need a slip on solution to swap out the factory tips.

    -cW
    2024 RS3 Turbo Blue with Carbon Pack
    2023 X3 M40i Alpine White
    Gone - 2023 RS3 Mythos Black - 2019 SQ5 - 2019 RS5 Coupe - 2015 S3 - 2014 Audi A5 2.0T - 2013 S4 3.0 -2010 A4 2.0T
    Youtube Channel: https://www.youtube.com/channel/UC4z...OgbcLzxwZEOt1A

  7. #7
    Established Member Two Rings
    Join Date
    Apr 27 2010
    AZ Member #
    58251
    Location
    West Chester PA

    Agreed. I think if you find a slip or clamp on tip that is similar in size to these tips you could chop the ovaled portion of the stock pipe and clamp on. The pipe where it is round is very close to 2.25 inch diameter.
    2015 S3 Daytona 1 Package | Unitronic Stage 1+ ECU | Unitronic Stage 1 TCU | H&R Sport Springs | CTS Intake/ Turbo Inlet | APR Turbo Muffler Delete | OEM Resonator Delete/ Flap Mod | Welded Magnaflow Tips | 19x8.5 ET 45 Forgeline ZX3R with 245/35/19 Conti DW | 20% Tint

  8. #8
    Active Member Three Rings
    Join Date
    Feb 11 2015
    AZ Member #
    314727
    Location
    New Jersey

    Jimmy I am in CNJ does your friend want to make a few bucks and do mine???? I love the look, but want black tips. I have the unitronic with the resonantor delete and stock CBE.

  9. #9
    Senior Member Two Rings
    Join Date
    Feb 13 2015
    AZ Member #
    315099
    Location
    VA

    That looks great, I might look into that for my car. Catless downpipe with the factory catback sounds perfect IMO.
    2015 S3 - Revo Tuned
    2016 SQ5
    2008 F350 - Pistons/Cam/Studded/Deleted/Single Turbo
    2010 GT500 - Twin Turbo

  10. #10
    Veteran Member Four Rings AudiSport12's Avatar
    Join Date
    Feb 17 2006
    AZ Member #
    10352
    Location
    Coastal Georgia

    Your tips look great
    2011 B8 S4
    2003 Z71 Tahoe
    2000 B5 S4 - Sold
    2001 B5 1.8TQM F21L - Sold
    2000 B5 1.8TQM - RIP
    2000 C5 4.2Q - Sold
    1997 B5 1.8TQ - Sold

  11. #11
    Established Member Two Rings
    Join Date
    Apr 27 2010
    AZ Member #
    58251
    Location
    West Chester PA

    Quote Originally Posted by 2015S3 View Post
    Jimmy I am in CNJ does your friend want to make a few bucks and do mine???? I love the look, but want black tips. I have the unitronic with the resonantor delete and stock CBE.

    I can ask him. Typically does them on a Saturday, he has a shop out of his home garage.

    - - - Updated - - -

    Quote Originally Posted by AudiSport12 View Post
    Your tips look great
    Thanks!
    2015 S3 Daytona 1 Package | Unitronic Stage 1+ ECU | Unitronic Stage 1 TCU | H&R Sport Springs | CTS Intake/ Turbo Inlet | APR Turbo Muffler Delete | OEM Resonator Delete/ Flap Mod | Welded Magnaflow Tips | 19x8.5 ET 45 Forgeline ZX3R with 245/35/19 Conti DW | 20% Tint

  12. #12
    Active Member Three Rings
    Join Date
    Feb 11 2015
    AZ Member #
    314727
    Location
    New Jersey

    Awesome, let me know

  13. #13
    Registered User Three Rings MagnaFlow's Avatar
    Join Date
    Jan 26 2015
    AZ Member #
    311494
    Location
    Oceanside, CA

    Those came out great! The tips fit your car nicely.

  14. #14
    Established Member Two Rings
    Join Date
    Mar 08 2016
    AZ Member #
    369970
    My Garage
    2014 Audi S6 and 2019 AMG GLC63
    Location
    Northwest

    Those look really nice! I have been on the fence about bigger tips on these cars, but I'm a fan now!

  15. #15
    Established Member Two Rings
    Join Date
    Apr 27 2010
    AZ Member #
    58251
    Location
    West Chester PA

    Quote Originally Posted by MagnaFlow View Post
    Those came out great! The tips fit your car nicely.
    Thanks guys!

    - - - Updated - - -

    Quote Originally Posted by PRGRMMR View Post
    Those look really nice! I have been on the fence about bigger tips on these cars, but I'm a fan now!

    Thank you. I think the stocks are just okay, and these make me happy with the rear now. Looks great to me.
    2015 S3 Daytona 1 Package | Unitronic Stage 1+ ECU | Unitronic Stage 1 TCU | H&R Sport Springs | CTS Intake/ Turbo Inlet | APR Turbo Muffler Delete | OEM Resonator Delete/ Flap Mod | Welded Magnaflow Tips | 19x8.5 ET 45 Forgeline ZX3R with 245/35/19 Conti DW | 20% Tint

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