FD3S 3.5" Exhaust System - Bolt on

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Engine - Exhaust

Oct 15, 2025, 02:32 PM | Replies: 5 | Views: 845
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
  • Engine - Exhaust - FD3S 3.5" Exhaust System - Bolt on - New - 1993 to 2002 Mazda RX-7 - Roselle, IL 60172, United States
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  • Price
    $2,000
  • Location Roselle, IL, 60172, USA
  • Condition New
  • Compatibility
Make Model Year
Mazda RX-7 1993 - 2002
Description:

I have three of these systems left and will most likely not make another batch.  Two new systems and one used system with 1k miles on it.

Exhaust system overview:

-All Stainless Steel (pipe, flanges, clamps, mufflers, everything)

-Largest possible, yet high flowing mufflers to reduce noise and drone with the large 3.5” piping.  One muffler in the mid-pipe and one large two stage muffler in the rear.

-Proper high temperature scrubble packing. THIS IS KEY, other mufflers internal material can degrade over time due to the rotary’s high EGT’s, common lack of cats, and will start to drone over time.

-Bolts to factory TT downpipe!   Even if your downpipe is only 3" this will bolt to it as there is a reducer welded in.  Perfect for owners who will chop that off later when moving to a 3.5” downpipe from a single turbo etc…

-Modular. Some might ask why the mufflers are not welded to the piping? 1: The piping is meant to be sent to your favorite ceramic coater to further improve performance and heat management.  2:  This will allow you to swap in the cat if you so desire.  3:  If you ever go single turbo you can simply replace the front section or cut off the 3" flange to bolt to a 3.5" downpipe.

-Light weight. ~27lb for the midsection and rear section!

-Clears all factory braces

-New system available with either a straight tip muffler or dolphin tip muffler.  Used system is dolphin tip.

For off road use only.  I did design and test these to easily implement swappable a Magnaflow metallic catalytic converter if you want this for a street setup.  See picture #3 and message for details.


New System - 2,000 shipped
Used System - $1500 shipped

Old Nov 30, 2025 | 08:04 PM
  #2  
Brekyrself's Avatar
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From: Chicago
November bump
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Old Jan 13, 2026 | 11:58 AM
  #3  
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2026 bump
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Old Feb 17, 2026 | 09:24 AM
  #4  
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Used system sold, only 2 new systems remain.
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Old Feb 17, 2026 | 10:34 AM
  #5  
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From: WA
These are really cool. Do you happen to have an exhaust clip to see how it sounds?
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Old Feb 18, 2026 | 12:52 AM
  #6  
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Originally Posted by GtiKyle
These are really cool. Do you happen to have an exhaust clip to see how it sounds?
Not the best however I no longer have an FD to get additional clips.


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