REMARK GZEA14 Catback Config Installation Guide

: September 7, 2024
: REMARK

Table of Contents

REMARK GZEA14 Catback Config
Product Information
Product Usage Instructions
Frequently Asked Questions (FAQ)
PARTS LIST
INSTALLATION
WARRANTY POLICY
ABOUT COMPANY
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

REMARK GZEA14 Catback Config

Product Information

Specifications

Manufacturer: Toyota
Year: 2023+
Model: GR Corolla
Trim: GZEA14
Chassis Code: RK-C4076T-05
Part #: RK-AT115-T
Description: Catback Configuration – 3.0 IN / 304 Stainless Steel Construction / Quad Tips

Product Usage Instructions

Installation Process

We recommend installation by a trained or qualified technician.
Disconnect the negative terminal from the battery.
Unplug the electrical connector from the OEM exhaust valve.
Unclip the OEM exhaust valve electrical harness from the exhaust.
Remove the OEM exhaust and/or exhaust components.
Remove the OEM exhaust valve motor and base plate as one unit.
Remove the three M8 bolts from the REMARK exhaust section B.
Remove the three M6 bolts, three M6 nuts, and plate at the exhaust valve from the REMARK exhaust (shown in red in the image).
The flat plate and M6 hardware are not reused.
Manually open the exhaust valve by rotating the actuator plate clockwise until fully open.
Secure valve motor assembly to exhaust valve bracket with original M8 hardware and torque to factory spec or ~20 ft-lbs.
Ensure the exhaust valve position is correct by looking into the center tips.
Adjust position of hardware if needed and retighten.
Tighten all hardware to recommended torque spec.
Plug in the electrical harness to the exhaust valve.
Clean the exhaust system thoroughly from any grease, dirt, handprints, fingerprints, etc.
Reconnect the negative terminal of the battery.
Start the engine (Note: Toyota has programmed the exhaust valve to be open at start up and while stationary).
Check for leaks, fitment issues, rubbing, etc.
Re-check for exhaust leaks, fitment issues, and re-torque all hardware after ~100 miles of driving.
Inspect all system components and retighten all hardware at normal service intervals (every 3000-5000 miles).

Frequently Asked Questions (FAQ)

What should I do if I encounter fitment issues during installation?
If fitment issues arise, adjust the position of the hardware and ensure proper alignment before tightening all hardware to recommended torque specifications.
How often should I inspect and retighten all system components?
We recommend inspecting and retightening all hardware at normal service intervals, approximately every 3000-5000 miles.

PARTS LIST

No.	Description	Part Num.	Qty	Torque
1	3.0” Composite 2-Bolt Gasket	76C2-01	1
2	M10x1.5 Serrated Hex Head Bolt L=35mm	M10B35	2	~42 ft-lbs.
3	M10x1.5 Serrated Nut	M10N	2	~42 ft-lbs.
A	3.0” Resonated Midpipe	N/A	1
B	Rear Muffler Section	N/A	1
B	Titanium Tip Cover, 4.5”	RK-AT115-T	1
B	M5 Buttonhead Bolt, M5x0.8, L= 8mm	N/A	3	~40 inch-lbs.

INSTALLATION

We recommend installation to be performed by a trained and/ or qualified technician
Disconnect Negative terminal from the battery
Unplug electrical connector from OEM exhaust valve
Unclip OEM exhaust valve electrical harness from exhaust
Remove OEM exhaust and or exhaust components
Remove OEM exhaust valve motor and base plate from the OEM exhaust system as one unit.
Remove the three M8 bolts
From the REMARK exhaust, section B, remove the three M6 bolts, three M6 nuts, and plate at the exhaust valve.
SHOWN IN RED IN THE IMAGE
These parts are only used to prevent the brackets from being damaged or bent in shipping.
The flat plate and M6 hardware will not be reused
The exhaust valve in the REMARK exhaust is spring loaded and is closed at rest. To properly install the OEM exhaust valve motor, we need to ensure the valve and motor are properly aligned.
To do this, we need to manually open the exhaust valve by rotating the actuator plate clockwise until the exhaust valve is fully open. Use a wooden or plastic object to keep the REMARK exhaust valve open. The handle of a large screwdriver, handle of a mallet, etc… will work without issue)
Line up the two prongs of the valve motor, to the two slits in actuator plate. If the valve is fully open, the valve motor assembly should closely line up with the three bracket holes. Secure valve motor assembly to exhaust valve bracket with the original M8 hardware.
Torque to factory spec or ~20 ft-lbs
Ensure the exhaust valve position is correct by looking into the center tips, the exhaust valve should be in an open position
Install REMARK exhaust components using the original rubber hangers
We recommend starting from the front first and working your way rearwards.
Reuse the OEM bolt and spring for the connection between OEM front pipe and REMARK midpipe
Install all gaskets and hardware. Leave the hardware hand tight.
Align flanges, gasket, and snug all hardware so that sections cannot move.
Check positioning of the exhaust piping, resonator, muffler(s), and tips(s). Reposition if needed by loosening hardware, adjust position and retighten hardware.
When placement is confirmed, tighten all hardware to recommend torque spec.
Plug in the electrical harness to the exhaust valve
Throughly wipe down the exhaust system from any grease, dirt, handprints, fingerprints, etc… as these may cause a permanent stain once the exhaust reaches operating temp.
Reconnect the negative terminal of the battery
Start the engine. NOTE: Toyota has programmed the exhaust valve to be open at start up, and while stationary.
Check for any leaks, fitment issues, rubbing, etc..
Re-check for exhaust leaks, fitment issues, and re-torque all hardware after ~100 miles of driving.
We highly recommend that the all system components be inspected, and ALL hardware retightened at normal service intervals. Every 3000-5000 miles.

WARRANTY POLICY

1-year limited manufacturer defect warranty from date of purchase
All warranty claims are subject to inspection by REMARK at our facility
Limited Warranty only applies to the original purchaser of the product
REMARK is not responsible for fitment issues on non-US spec vehicles as all products are developed on US spec models
Product finishes are not covered under warranty and considered wear & tear
No warranty whatsoever will be valid if the defect was caused by abuse, negligence and/or mishandling. That includes weather conditions, natural disasters, any road/off-road conditions, and any accidents/collision you were part of.
Acidic cleaning products or steel wool are not to be used unless by a trained professional. Some chemical cleaning products may damage the product and/or finishes.
Wear and tear (the damage that happens to our product in ordinary use) is not covered by our limited warranty.
Improper installation or misuse of the product may lead to failure and damage to both product and vehicle. The user assumes all responsibility.
All products are intended for use off-public streets and highways. Vehicle manufacturer warranty may be voided should any modification(s) or removal(s) of OEM(factory) components are determined.
Federal and state law may prohibit the removal, modification or rendering of any device affecting vehicle emis-sions or state regulated decibel limits. It is the customer’s responsibility to be aware of federal, state and local laws.
User assumes all cost and risks associated with purchase and installation of aftermarket components. REMARK is not responsible for any fees, fines, or any type of penalties you have received from any authority.
Buyers are responsible for all return shipping fees unless otherwise noted
REMARK does not cover any installation, un-installation, labor fees, or related