The stock Gen2 3SGTE intake manifold has a small plenum that struggles with flow and even distribution above 350whp. We chop the stock plenum off, weld on a CNC port adapter, porting the runners to match, and add a much larger plenum. This has been proven to offer significant power gains and fix lean mixture on cylinders 2 and 3. Tested in house up to 660whp!

Includes a mounting flange for an RMR 75mm throttle body. We have adapters for a stock 91-92 throttle body and DBW options.

Gen3, 4, 5, and side feed options also available by request.

We try to keep these in stock, but your order may have a 4 week lead time if we have to build one.