• MILLTEK SPORT CAT-BACK EXHAUST WRX/STI 15-21 | SSXSB49 - JDMuscleCat Back Exhaust SystemMILSSXSB49

Milltek

Milltek Be the first one to review

Sport Cat-Back Exhaust w/ Cerakote Black Tips

Fits: 15-21 WRX STI

$2,11900
Earn $42.38 In JDMuscle Rewards!
Profile Avatar

Talk to an Enthusiast

Verify Fitment & Product Recommendations

M-F 9:00AM - 6:00PM

(866) 833-3536 Email Text (610) 735-6688Text
Ships When Available-Lead Time Applies
Pay over time available · Est. $66.22/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Katapult Affirm Klarna Shop Pay
View all options
Pay over time available · Est. $66.22/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Katapult Affirm Klarna Shop Pay
View all options
Milltek Sport Cat-Back Exhaust w/ Cerakote Black Tips
Fits: 15-21 WRX STI
Be the first one to review

Fitment

Please Note: Fitment per Milltek (sole authority for fitment): WRX STI sedan. Milltek catalogs SSXSB49 under 'Impreza WRX STi / WRX STI Saloon/Sedan', UK model years 2014-2021 = US 2015-2021. Buckets set to WRX STI only. Series verified per Milltek: this is the resonated (quieter), EC-approved 'Sport' system. SSXSB49 = Cerakote Black GT-100 tips (Milltek sells polished/titanium/burnt finishes under different part numbers). Not on sale at time of cleanup: $2,119.00. Price untouched.
  • 2015–2021 Subaru | WRX STI

Description

Milltek Sport's resonated cat-back exhaust for the 2015-2021 Subaru WRX STI sedan delivers the classic Milltek formula: genuine performance gains, a deep and sporty exhaust note without drone, and aggressive-but-discreet styling. Every system is designed, developed, and hand-finished in the UK from aerospace-grade type 304 non-magnetic stainless steel - a material less susceptible to discoloration that lasts almost indefinitely and is used throughout the entire pipework, silencer, and hardware construction. Mandrel bending keeps a constant radius for optimized gas flow, and the 3.00-inch (76.2mm) bore is carefully enlarged over stock to ensure ultimate performance without the loss of mid-range torque.

  • Resonated (quieter) cat-back system - EC-approved for road use
  • Quad 100mm GT100 tailpipes in Cerakote black finish
  • 3.00 in (76.2mm) pipe diameter with dual premium rear silencers
  • Type 304 aircraft-grade stainless steel construction throughout
  • Mandrel-bent pipework for optimized exhaust flow
  • Direct bolt-on installation - hangers welded at OEM locations
  • Designed to increase horsepower and torque, improve throttle response, and reduce turbo lag
  • Sporty, crisp tone engineered to avoid NVH, drone, and cabin resonance
  • Kit includes: resonated front section, connecting pipe, Y-piece assembly, LH + RH rear silencer assemblies, 4x Cerakote black tip assemblies
  • Fitment note: when mating to the stock j-pipe/downpipe, the GrimmSpeed stock-DP to 3 in. cat-back adapter (p/n 077046) is required
  • Manufacturer part number: SSXSB49

Shipping and Delivery

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Warranty and Support

For Milltek warranty information, contact our support team.

Return and Refund

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov