KO Racing is the only company to offer 100% USA made downpipe for the Gen4. There is no other production downpipe on the market for the Gen4/SW20/Celica manufactured in the US.
These pipes were originally exclusively sold by Primary Performance, but are now available direct to the public from the original creator and manufacturer. Accept no substitutes or imitations!
The downpipe features 3/8" laser-cut flanges, 2.5" diameter (63.5mm) mandrel bent 16 gauge mild steel aluminzed piping, wastegate exhaust vent that allows full actuation of the wastegate, 2000 degree ceramic thermal barrier coating for corrosion resistance and thermal insulation from Finishline Coatings. The use of 2.5" pipe and large radius bends provide greatly improved flow. This results in a quicker spool-up of your turbocharger and more power throughout the RPM range. We have fully tested this downpipe and the result is smooth linear boost with no spikes on the Gen4 CT15 turbo.
These are made to order. 2 to 4 weeks. May have them in stock, call to check if you are in a hurry for your order.