TCS Motorsports has been selling this popular upgrade to MR2 owners for nearly a decade now! We have made a few revisions to help with fitment and appearance.
The TCS Coolant Hardline Bypass Hose is made to work with ANY 3SGTE or 5SFE engine that is installed in the SW20 MR2 Chassis. One end of the hose will connect directly to the aluminum water neck on the left hand side of the engine, and the other end will connect directly to the coolant hardline underneath the car. Using our hose you will be able to replace two factory hoses, as well as a factory metal "J" shaped hardline. On the attached photo, you will see all 3 pieces that can be removed, as they are marked with a red arrow .
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