5VZ Swap Conversion Exhaust Cross Over Pipe

The 5VZ 3.4L exhaust uses a crossover pipe that ties the two exhaust manifolds together behind the engine, above the bell-housing. The OEM pipe, however, collects on the RH (passenger side). During the 3.4L conversion it is more difficult to route the exhaust system down the passenger side. This is due to brake and fuel lines, the transfer case, and the fuel tank. This crossover pipe also routes the exhaust over the bell-housing, but collects both banks on the LH (driver side). This “dumps” the exhaust on the proper side of an older Toyota, keeping the undercarriage free of low-hanging cross-over exhaust pipes. This exhaust pipe bolts directly to the OEM 3.4L 5VZ-FE exhaust manifolds. This 3.4L Crossover Pipe features a small flex coupler between banks to ensure a long life due to expansion and contraction during operation.

This product is for use with original 3.4L 5VZ-FE exhaust manifolds.

This crossover pipe includes new manifold exhaust studs, exhaust nuts, manifold gaskets, an additional weld-on collector flange, and the necessary collector gasket and hardware to easily continue the exhaust system.

Manifold Style: When ordering a crossover pipe, note the year of the exhaust manifolds being used (normally engine model year). Select either 1995-2000 or 2001-2004 (see the pictures to verify which style is needed).

Flange Attachment: It is ideal for most applications to order the pipe with the collector (lower) flange attached.
Here are the few applications for which the flange should be ordered ‘loose’:

• 1979-1985 4×4 Pickup and 4Runner – due to frame difference and collector clearance
• Models using a Manual Trans from a 5VZ, 3.4L application (to clear the LH slave cylinder)

Ceramic Coating: This exhaust pipe is constructed from mild steel and is available with or without a ceramic coat. Ceramic coating will offer protection from both corrosion and heat. There are other methods of heat and corrosion protection, but ceramic coat is ideal.

Please note that some ’99-’00 California engines will have the 2001-2004 manifold type. We recommend verifying your manifold type using the above pictures.

This product is not compatible with JDM Japanese-import. exhaust manifolds. JDM engines will require the use of US/Canada spec. exhaust manifolds.

On A/T column-shift models (4×2 RV, 1-Ton, some T100) the shift linkage must be modified for clearance to the collector pipe. ORS offers this modification, please inquire by phone

This product is not C.A.R.B. approved. Since it does not change the flow and principal function of the exhaust system it has passed customer’s Smog/emission tests in California and other states for many years. Recently, some testing CA centers have insisted that the exhaust is routed on the RH side of the vehicle. We strongly advise discussing your conversion plans with your local testing center before beginning a 5VZ engine conversion.

Although the collector flange is placed in a similar location, the 3.4L Crossover pipe will not bolt up to the 3VZ exhaust system. A new down-pipe must be built if joining to a 3VZ exhaust system. Many 3VZ exhaust systems were reduced in diameter near the catalytic converter. We recommend no smaller than a 2.25” diameter on any pipe in the exhaust system.

The Crossover pipe will not bolt up to any 5VZ 3.4L OEM down-pipes. A new down-pipe must be built or modified to work with this Crossover Pipe.