MagnaFlow Competition Series Cat-Back System - 2015-2021 Subaru WRX / STI
MagnaFlow Competition Series Cat-Back System - 2015-2021 Subaru WRX / STI
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MAG19361
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MAG19361
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MAG19361
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MAG19361
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MAG19361
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MAG19361
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MAG19361
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MAG19361
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MAG19361
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MAG19361
MagnaFlow
MagnaFlow Competition Series Cat-Back System - 2015-2021 Subaru WRX / STI
MagnaFlow Competition Series Cat-Back System - 2015-2021 Subaru WRX / STI
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Competition Series Exhaust
The MagnaFlow Competition Series Exhaust Systems are designed for those seeking maximum performance, reduced mass and an aggressive exhaust note that demands attention. These systems may not comply with all local or federal noise requirements.
Specifications
- Material: 100% Stainless Steel
- Tubing O.D. Size: 3in.
- System Type: Cat-Back
- TIP O.D. Size: 4in.
- TIP Type: Double Wall
- TIP Quantity: 4
- Single/Dual: Dual
- Exit Position: QUAD SPLIT REAR EXIT

| Specification | Value |
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Purchased this catback for my 18 WRX, order submitted Thursday morning, package received Monday evening, with free shipping option, was satisfied with shipping, and packaging upon arrival.
Installed myself next day, installation took no more than 20minutes, this catback uses all factory exhaust hangar locations and rubber hangars, making install very easy. The sound this catback produces is personally unlike any of the other catbacks I have heard.
In my opinion ( why I selected this system ) it is unique, the idle is very tame and doesn’t draw attention, however WOT is the exact opposite. I can leave for work quietly at 7am, but I also can be heard blocks or more away at WOT and finally hear the muffled pops during high rpm shifts with boost. You get the best of both worlds, and for the price you can’t go wrong.
This review is 500miles after installing, I have inspected my system twice since for any cracks or issues and found none, very satisfied with the quality and durability of this exhaust. Would recommned to anybody with a 15-19 WRX/STI
I purchased this exhaust for my 2016 STi last year, and the sound quality along with the new feel of the vehicle in coordination with the Boxer Motor complement each other well in a way true enthusiast can appreciate. This Exhaust creates a Deep rumble that makes your presence known! (installed at Subaru of Plano)
Has this exhaust for over a year now, it sounds great, but not loud. If you really want to make it sound loud your gonna have to get a downpipe aswell, but the pops are amazing.
Honestly sounds so clean you can’t beat the price either fitiment to was spot on too
2015 STI. This exhaust is awesome. My biggest fear when spending this kind of money on a new exhaust is to be disappointed in the sound. Trust me when I say you will love this catback. Nice deep bass rumble, it sounds incredible! Took it to a local exhaust shop to have it installed for 80$ and the fit is perfect. Highly suggest this quality Magnaflow product.