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GRP has designed this to suit standard or aftermarket cat back exhaust systems, they have solidly mounted the factory rear system in the exact location on their vehicle for the design to ensure precise alignment to the rest of your existing system. This upgraded front section uses a HUGE 4.5" expansion pipe directly from the turbocharger into the extreme high flow 5" cat (4.5" straight through no Cat) removing both of the restrictive factory catalytic converters.
Increased performance, deeper exhaust notes and more turbo noise can be expected with this bolt on upgrade, with no tuning we had no Cel/Engine lights on the test vehicle for the first 1000kms. (A minimal number of customers have experienced random CEL lights after extended driving periods, these have been easily cleared within seconds via $30 obd2 scan tools or obd2 Bluetooth phone apps, and no noticeable effects to performance with the dash light on).
Please note, that we highly recommend purchasing the Cusco Engine Mount Pitching Stopper to ensure engine movement is minimal when fitting our exhaust kits
Any Toyota GR Yaris
GRP Fabrication Yaris exhausts are proudly made and designed right here in Australia, our exhaust components are made with high quality stainless steel mandrel bends, stainless steel flanges with heavy duty clamps and all professional tig welded in house. With 20 years of experience specialising in Turbocharged Toyota platforms the quality and performance speak for itself.
These dump pipes include a 100 CEL metallic cat, these may or may not be legal in your state or territory for road use.
Please note a slotted o2 sensor socket is required to remove the top o2 sensor, the rest of the install can be done with basic tools.