Below is information direct from Germany regarding this product.
It may show additional information about fitment and specification.
Downpipe Kit without catalyst converter for Toyota Supra MK5 OPF-model
made out of high quality stainless steel 1.4301 (SS304)
complete Ø3,5 and adapter for stock exhaust
100% perfect fit, replace OEM
less thermal load on the turbocharger
more power by reducing back pressure
significantly more torque
Only suitable for cars equiped wit OPF!
Error display in the DME, because removed catalyst converter.