RS Fabrications have officially gone with their cat back and DTUK tuning box as a package that they're calling GR-RS300.
RS Fabrications GR-RS300 package for the Yaris GR consists of the following:
- 300ps 400nm
- High quality 3 inch cat back performance exhaust with specification of your choosing for looks and sound (for more information please see the RS Fabrications website)
- DTUK Tuning Box with custom maps designed with DTUK to work safely with RS Fabrications cat back exhaust
- Fake exhaust speaker sound (Engine Sound Enhancement and Active Noise Cancellation) completely disabled
- All installed at RS Fabrications
I expect with other standard cars having made 270bhp+ on other dynos (this car "only" made 265bhp standard) that this package will happily make over 300bhp too. But for now, on this dyno, I think that ~300bhp is a good figure for this little car, and it certainly makes a lot of difference to the way it drives.