Milltek Sport Cat-Back Exhaust - 2023-2026 Toyota GR Corolla 1.6 Turbo

This Milltek Sport cat-back exhaust fits the Toyota GR Corolla with the 1.6 liter three-cylinder turbo, from the 2023 to 2026 model years, with the manual or the automatic. It keeps the car's three-outlet look, with twin center tips and a tip on each side, and it keeps the factory exhaust valve and its controls working.

The G16E-GTS has a busy, rally-bred character, and the factory system holds a lot of it back. Milltek offers this system in several forms, so you can pick how loud it gets and how much of the factory system it replaces. Every version bolts in with no cutting of the original exhaust.

All versions are made in England from T304L stainless steel with 76.2 mm (3.0 in) pipework.

How to Choose

Secondary Cat-Back systems start behind the factory secondary catalytic converter and keep it in place. They are not race-only products. Primary Cat-Back systems start at the factory downpipe and replace the secondary catalytic converter with a pipe. They are louder, and Milltek marks them as race/track only. Each comes Resonated, for less drone, or Non-Resonated, for the most volume.

Then pick a tip finish: polished, Cerakote black, brushed titanium or burnt titanium. All four tips come in the same finish.

Secondary cat-backs can also be ordered with Milltek's catted downpipe (SSXTY154). It has a 200-cell high-flow sport catalytic converter in place of the secondary converter, and it fits 6-speed manual cars only. Milltek marks it race/track only and recommends an ECU tune. The downpipe is also listed on its own on the Milltek GR Corolla downpipe page.

Features

• Keeps the factory valve and its controls
• Three-outlet layout with four tips
• Secondary or primary cat-back, resonated or non-resonated
• No cutting of the factory system
• Optional catted downpipe for manual cars

What's Included

• Secondary Cat-Back: adapter to the factory secondary converter, center silencer bypass, rear muffler, left and right outlet pipes, valved center Y-pipe, two GT-100 and two GT-115 tips
• Primary Cat-Back: adapter to the factory downpipe, secondary converter bypass pipe and link pipe, plus everything in the secondary cat-back
• Catted downpipe add-on: turbo downpipe, secondary bypass with 200-cell high-flow sport cat, and link pipe

Specifications

Fitment Notes

• Cat-backs fit the 2023-2026 Toyota GR Corolla, manual or automatic.
• The catted downpipe fits 6-speed manual cars only, not the 8-speed GR-DAT automatic offered from 2025.
• The downpipe add-on is only offered with secondary cat-backs, because the primary cat-backs already include their own secondary bypass.
• Does not fit the regular Corolla hatchback or sedan.

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.