Ships in 1–3 business days. Free standard shipping to the lower 48 states.
Toyota GR Corolla Downpipe – High-Flow Catted & Catless
Choose a high-flow catted or catless GGP downpipe for the 1.6L G16E-GTS-powered Toyota GR Corolla. Both configurations use stainless-steel construction, TIG welding, CNC-machined flanges and an integrated flex section.
Verified fitment: 2023–2026 GR Corolla with the 6-speed manual and 2025–2026 GR Corolla with the 8-speed DAT automatic. Choose your configuration, then review the fitment and tuning guidance below.
Catted vs. Catless
Option
Best For
What to Expect
High-Flow Catted
Builds requiring a catted configuration, after fitment and use are confirmed
Retains a 200-cell catalytic converter in the replacement assembly, confirmed by GGP. Application-specific road-use approval must be verified separately.
Catless
Only applications and uses legally permitting a catless configuration
No catalytic converter. Not recommended for road vehicles; a competition-use label is not a blanket legal exemption.
Key Features
Stainless-steel construction
TIG-welded design
CNC-machined flanges for proper fitment
Integrated flex section to help reduce stress and vibration
Available in 200-cell high-flow catted and catless configurations
Designed for the 1.6L G16E-GTS-powered GR Corolla
Vehicle Fitment
GGP-confirmed fitment for both catted and catless configurations
Model years
Transmission
Fitment
2023–2024 Toyota GR Corolla
6-speed manual
Verified by GGP
2025–2026 Toyota GR Corolla
6-speed manual
Verified by GGP
2025–2026 Toyota GR Corolla
8-speed DAT automatic
Verified by GGP
For the 1.6L G16E-GTS-powered GR Corolla, not the regular Corolla 2.0L. For an aftermarket turbo, a non-standard exhaust connection or market-specific questions, send GGP your setup details before ordering.
Does the GGP GR Corolla downpipe require a tune?
A tune is recommended, but not required, for both the high-flow catted and catless GGP downpipe. This is GGP’s guidance for this product; other modifications may have their own calibration requirements.
GGP recommends Freektune. View Freektune’s Corolla / Yaris GR email-tuning service and confirm support for your model year, transmission, ECU and existing modifications directly with the tuner before purchasing a tuning package.
Will the downpipe cause a check-engine light?
A check-engine light may occur with either configuration, depending on the vehicle and calibration. “Tune recommended, not required” is not a CEL-free guarantee or a statement of road-use approval. Tuning does not by itself establish emissions compliance.
Email GGP with your model year, transmission and current exhaust setup for help before ordering.
Installation and Performance Expectations
Professional installation is recommended. Confirm required hardware, gaskets, clearances and the applicable road-use requirements. A catalytic converter or tuning change does not by itself establish legal compliance.
The downpipe sits directly after the turbocharger, making it an important part of the exhaust path on a turbocharged setup. Changing this section can affect exhaust restriction, response and sound, but no product-specific measured horsepower or response gain is stated here.
Shipping and Returns
Both the high-flow catted and catless GGP GR Corolla downpipes qualify for free standard shipping to the lower 48 U.S. states. Processing takes 1–3 business days (Monday–Friday, excluding holidays). This is the time before shipment, not the delivery time; carrier transit is additional. See our shipping policy for delivery estimates and other destinations.
To request a return, email orders@grocerygetterperformance.com within 14 days of receipt before sending the item back. Returnable items must be unused and in their original packaging. Customers arrange and pay for return shipping; GGP can provide a return label on request, with its cost deducted from the refund. Approved refunds go to the original payment method. Authorized returns go to Grocery Getter Performance, 109 Brook Meadow, Cibolo, TX 78108. Read the full return policy before installation.
Why Choose the GGP Downpipe?
This is a Grocery Getter Performance product for GR Corolla owners who want a straightforward choice between catted and catless configurations, solid construction, proper fitment and strong value. GGP supports the GR Corolla platform directly and can help customers choose the configuration that makes sense for their build.
Compare GR Corolla Downpipe Options
See how GGP’s catted and catless configurations compare with other complete assemblies on complete-assembly price, catalyst information and available performance evidence. Read the GR Corolla downpipe comparison guide before choosing a configuration.
Installation was straightforward and the build quality is excellent. It looks great on the car and has noticeably reduced intake air temps. Highly recommend it for any GR Corolla owner.
A must have upgrade for your GR Corolla. This unit eliminates the side to side play that the factory shift linkage has. Nice, tight shifting post install. Awesome upgrade 👌🏼
I could not be happier with my purchase. The customer service throughout the purchase and the shipping of the exhaust was next to none! An overall amazing experience, and a pleasure to order though. Highly recommend.
Awesome shirt, love to rep my car even when I’m not in it! I wear this everywhere! Very comfortable materials, the print on the shirt feels quality, I absolutely love how the colors pop.
The background print is too dark. The outline of the trees cannot be seen. The tombstones are very dark and the names on them cannot be seen. Cannot see the wheels or grill.
Ordered an ice cap tee. No idea how a chose a small for my dad bod but my mistake was my daughter's gain. She immediately stole the shirt because we work on the car together. The Grey color is perfect for the colors in the design and makes the red pop. The design is sick and the quality shirt is really really nice. So much so I ordered the right size immediately! Buy one!
This hat…what can I say? Do you want to be the talk of the GR community? Do you want to have people look at you and know you mean business? Do you want keep the sun out of your eyes (wearing it forward of course)? Do you want to be successful?
If you answered yes to any of these, then this is the hat for you! The fit and feel of this hat is perfect, much like the Brin Naub® and synthetic leather-trimmed sport seats in the GR. The embroidery seems as though it was done by the hands of angels, every stitch to perfection. When I first put this hat on, I lost 15lbs and gained another 15lbs in muscle (can’t confirm it scientifically, but the scale stayed the same and I felt stronger). My senses while having this hat on were also heightened. The 6 speed manual transmission in my GR Corolla didn’t stand a chance as I flew through the gears masterfully while passing the Ferrari SF90 stradale awd that couldn’t keep up with me (it may have been slowing down to turn, but pretty positive they saw me and knew they couldn’t keep up).
Bottom line is, you want this hat, you NEED this hat. I’d recommend buying atleast two of them for when people notice you’ve become too powerful and try to steal your hat. Always have a backup! And remember, with a great hat comes great responsibility, or something like that. Buy this hat now!
Love the design of the shirt!! I ordered two of them and they were delivered quickly after. My family loves this shirt as I have a HM GRC.
Next time, when I order again, I’d consider getting one size larger.
Graphics are sick, they’re printed well (screenprinting feels thick, like it won’t crack, fade or peel so that’s good) printing seems accurate (back is perfectly centered), blank material is always s tier w comfort colors so that’s good. 10/10 will buy again
Going to make this short and sweet, was going to order my MBRP exhaust through a different company but before that I had onesix In the back of my head. The experience I had was top tier. They answered every single question and kept me in the loop with shipping. I would definitely recommend buying from these guys! They're in it to make sure the customers that buy from them are more then satisfied...but well taken care of.
So excited to get this exhaust. I had it installed the weekend after I received it. I have gotten sooooo many comments on the sound as well as the looks. I really love it.