MAP Catback Exhaust System | 2015-2020 Subaru WRX/STI (WRX-4G-CB-REV2)


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Phone 1-888-627-3736

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Grimmspeed Adapter
Tip Options
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$999.99 $1,111.10Instant Savings of 10% ($111.11)

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2015-2020 Subaru WRX / STI Catback Exhaust System

Open up that exhaust and let the ponies flow through! The MAPerformance 15-20 Subaru WRX / STI replaced that restrictive factory exhaust system, bringing more power, torque, and sweet sounds with it! Made from the highest quality stainless steel, it has been expertly TIG welded for supreme durability in the most harsh conditions. We feel this is the best 2015-2020 Subaru WRX / STI catback on the market, so give us a chance to prove it to you! Contact us today for with any questions!

Please Note: Does Not Fit SPT Exhaust. Some of the attached photos show welded-on exhaust tips but we use a clamp-on system now.


  • Mandrel Bent 3" and 2.5" 304SS Construction
  • Dual Staggered 3.5" Dual-Wall 304 Tips
  • Twin Polished 304SS Mufflers
  • Twin 304SS Resonators
  • USA Made


  • 304ss - will not rust
  • Expertly tig welded for maximum toughness
  • Includes all clamps & hardware for installation


  • 2015-2020 Subaru WRX
  • 2015-2020 Subaru WRX STI

What's In The Box?

  • Catback Front Section
  • Catback Rear Section
  • Installation Hardware / Clamps

Installation Instructions


  • MAP Limited Lifetime Warranty

Customer Reviews

Based on 63 reviews
Great exhaust

Amazing product , easy to install and sounds amazing!

MAPerformance exhaust 2015-2021 WRX/STI

The estimated shipping was 10-14 days but it arrived in 6 days. I own a 2019 WRX and this is the first mod on the car. The exhaust gave my car a deep time with a refined sound. I did a lot of research before purchasing this exhaust and I couldn’t be happier. The exhaust roars when you step on it, but it isn’t too loud. The burnt tips look absolutely beautiful as well. This is exactly what I was looking for. Thank you MAP!

Monica Williams

Looks great and my husbands car sounds awesome, the only complaint he had was that there were some clamps missing and we just had to go buy those.

Perfect sound for the WRX!!

The MAPerformance exhaust with mufflers is the perfect sound level for anyone who is looking for that quiet sound when cruising, but yet roar when you step on it!! Especially paired with the MAPerformance J-pipe!!

Makes me feel like I'm in "stealth" mode. Although I did ended up purchasing the muffler deletes as well for the cat-back so that I can swap them out for the weekend cruise, or just to make some more noise with my Burble map.

Don't let the v-band clamps and connectors scare you away from purchasing this exhaust.

I was skeptical at first, but now I actually LIKE the fact that the system utilizes v-bands and clamps. Gives you more room for adjustability, easily remove axle-backs AND eliminate the use of gaskets.

High quality, as always from MAPerformance, highly recommended!!

Casey H.
Great purchase

Finally running MAP from the intake to the exhaust tip and couldn't be happier