Searching for a top - notch replacement TMIC Y - Pipe kit for your 2002 - 2007 Subaru WRX or 2004 - 2021 STI? Look no further! The GrimmSpeed Y - Pipe Kit is here to meet all your needs. Whether you've just purchased an aftermarket or STI TMIC that needs an STI Y - Pipe, want to replace worn - out and leaking couplers, or simply wish to add a touch of GrimmSpeed style to your engine bay, this kit has something for everyone. Here are the quick specs: It features a one - piece aluminum casting for a precise fit and smooth, distortion - free flow. The thick flanges prevent heat and vibration from cracking the casting. Machined flanges guarantee a perfect fit and a leak - free seal every time. The 5 - ply high - grade silicone couplers have a smooth interior to maximize airflow and minimize restriction, and their heat - resistant reinforcement keeps them in shape even at high boost levels. The stainless steel high - torque clamps have a rust - proof construction and smooth operation, and the black zinc - coated hardware allows you to ditch those unpleasant OEM fasteners. The GrimmSpeed TMIC Y - Pipe has been fully redesigned. Using a single - piece aluminum casting machined after casting, it ensures perfectly flat flanges and precise fitment every time. Inspired by the OEM Y - Pipe, GrimmSpeed engineers balanced the airflow to evenly distribute charge air across the inlet end tank of your top mount intercooler. The 5 - ply silicone couplers are fiber - reinforced to prevent distortion in high - boost situations, while offering mobility and flexibility to isolate your TMIC assembly from engine vibrations. Each 90 - degree coupler is slightly oversized on the turbo side, allowing it to be trimmed to fit different stock - location turbos. This Y - Pipe is ideal for upgrading your WRX intercooler to an STI or GrimmSpeed TMIC. For STI owners, it offers a fresh look and better flow distribution. All kits come with a replacement 90 - deg turbo outlet coupler, throttle body coupler, and stainless steel BREEZE high - torque clamps. Fitment includes 04 - 21 Subaru Impreza STI (with factory or GrimmSpeed TMIC only), 02 - 07 Subaru Impreza WRX (with STI or GrimmSpeed TMIC only), and 04 - 08 Subaru Forester XT (with STI or GrimmSpeed TMIC only). Note that supported fitments only include vehicles running OEM STI and GrimmSpeed Top Mount Intercoolers, and some trimming of the elbow coupler may be required for multiple turbo setups.
Using the GrimmSpeed Y - Pipe Kit is a straightforward process. First, make sure your vehicle is turned off and has cooled down. Locate the existing Y - Pipe and carefully remove it, along with any attached couplers and hardware. Then, take the new Y - Pipe from the kit and position it in place. Use the provided black zinc - coated hardware and stainless steel high - torque clamps to secure the Y - Pipe and the 5 - ply silicone couplers properly. Ensure that all connections are tight to prevent any leaks. When it comes to the 90 - degree couplers, if they are slightly oversized on the turbo side, you may need to trim them to fit your specific turbo setup. Just take your time and make precise cuts. Here are some important notes. This kit is only compatible with vehicles running OEM STI and GrimmSpeed Top Mount Intercoolers. Do not attempt to use it on other types of intercoolers. Also, since the elbow coupler might need some trimming for different turbo setups, make sure you measure and cut accurately. For maintenance, regularly check the clamps to ensure they are still tight. Over time, the silicone couplers may collect dirt. You can clean them gently with a mild soap and water solution. Avoid using harsh chemicals that could damage the couplers or the Y - Pipe. Keep an eye on the hardware for any signs of rust or wear, and replace it if necessary. This way, your GrimmSpeed Y - Pipe Kit will keep performing at its best for a long time.
