Fits Toyota 1JZ and 1.5JZ Non-VVTI Engines

☼ Comes standard with single TiAL MVR (44mm V-band) gate flange, optional others
☼ Fits up to GT42R (PTE8285) sized turbo
☼ Fits up to 4" downpipe


Tubing specs: 1.660" OD, 1.380" ID, 0.140" wall rated for 1300 HP

The DOC Race Topmount Turbo manifold is for the more extreme setup looking for the potential limit of the vehicles engine. This manifold has seen well over 1000 HP and is designed for peak-power situations. The DOC Topmount manifold can still be used for “streetable” vehicles, but is solely designed to make maximum horsepower and allow you to fit much larger frame turbos than traditional bottom-mount Manifolds. D.O.C. still applies elaborate porting process to complement maximum flow within ALL of their manifolds.

The DOC Race Twinscroll Turbo manifold is similar to the manifold application. Their Twinscroll manifold is for maximum flow of your engine and turbo, including the best possible spool and no limitations of the maximum output of your combination. DOC Race Twinscroll manifolds have had years of development in order to utilize the proper exhaust pulses to eliminate unwanted exhaust backpressure and valve overlap, in-turn giving you maximum airflow.

Does NOT fit Mk3 Supras without modification