By Korsh Exhaust

Korsh Subaru WRX 2011-14/STI 2011-2021 Auto Turbo Back Exhaust - Titanium Catback with Stainless Downpipe

Regular price $3,799.00
Regular price Sale price $3,799.00
Shipping calculated at checkout.
Availability: Out of stock
SKU: KOR-TBEXH-11STI-TI-AUTO
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Regular price $3,799.00
Regular price Sale price $3,799.00
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Complete premium turbo back exhaust system combining a full titanium catback with stainless steel downpipe, engineered specifically for the 2011-2014 Subaru WRX and 2011-2021 Subaru STI automatic transmission models. This comprehensive exhaust system includes the stainless steel downpipe (KOR-EXHDP-08-AUTO) and full titanium catback (KOR-CB-15STI-TI), delivering maximum performance gains, aggressive sound, stunning visual appeal, and significant weight savings.

  • Complete turbo back system - includes stainless downpipe and full titanium catback
  • Full titanium catback construction for ultimate weight reduction and strength
  • Stainless steel downpipe for durability
  • Premium titanium exhaust tips for distinctive styling
  • Direct bolt-on fitment for 2011-2014 WRX and 2011-2021 STI (Automatic)
  • Maximum exhaust flow and reduced backpressure
  • Enhanced throttle response and power delivery
  • Famous Subaru exhaust note with refined tone
  • Professional-grade mandrel-bent piping
  • Superior corrosion resistance and heat dissipation
  • Catback Construction: Full Titanium
  • Downpipe Construction: Stainless Steel
  • Tips: Titanium
  • Includes: Stainless Downpipe (KOR-EXHDP-08-AUTO) + Full Titanium Catback (KOR-CB-15STI-TI)
  • Fitment: 2011-2014 Subaru WRX / 2011-2021 Subaru STI (Automatic)
  • Subaru WRX 2011-2014 (Automatic)
  • Subaru STI 2011-2021 (Automatic)

Transform your automatic WRX or STI's entire exhaust system from turbo to tips with this premium turbo back package. The full titanium catback ensures optimal flow while maximizing weight savings, paired with a durable stainless steel downpipe. The titanium tips add a distinctive finishing touch that sets your Subaru apart.

What clients say


  • Really fast and high quality customer support, my order got to me faster than the quoted time too. No complaints

  • The team took a mostly broken car after some work done elsewhere, and have systematically made it reliable and fast for a fair price. The staff are invested in the work they do which also makes a big difference.

  • Jeff was extremely helpful in assisting me with my exhaust. Always kept me updated and answered any queries in a timely manner. Will definitely be coming back for my future mods

  • Justin and his crew is amazing! Always ready to help and service with a smile. Trusty, friendly and reliable! Had my car sent in for repair twice and it’s fixed on time, at a reasonable price and with no issues. Highly recommended!

  • Easy to deal with and part was ordered quickly

Fitment & Compatibility


How do I know if this part fits my car?

We recommend checking your vehicle's make, model, year, and variant carefully. Most product listings include compatibility notes, but if you're unsure, contact us before purchasing.

Can you confirm fitment before I place my order?

Absolutely. Send us your VIN or Rego and we’ll confirm fitment for you.

Do you offer installation at your workshop?

Yes, we offer installations for most parts at our Ringwood workshop. Contact us to book or get a fitting quote.

Shipping & Handling


How long will it take for my order to arrive?

Most in-stock items ship within 1-2 business days. Delivery time depends on your location and shipping option chosen at checkout.

Do you ship internationally?

Currently, we only ship within Australia. For international enquiries, please contact us directly.

Can I pick up my order in person?

Yes, local pickup is available from our Ringwood workshop. Simply select ‘Local Pickup’ at checkout and we’ll notify you when your order is ready.

Please note: Some items are stored offsite and may need to be transferred from our warehouse, which can add a few business days before pickup is available.

Returns & Warranty


Can I return a product if it doesn’t fit?

Returns are accepted within 14 days if the item is unused and in original packaging. Please see our full Returns Policy for details.


What warranty comes with your products?

All products come with the manufacturer’s warranty. If you experience any issues, contact us and we’ll assist with the claim process.