This is APR's massive 4” cast aluminum inlet which is organically shaped to retain the largest possible cross-sectional area within the pipe all the way to the inlet of the turbocharger’s compressor cover. Despite the visually odd shape, keeping the cross-sectional area as large as possible is the key to the pipe's performance gains, and greatly outflows smooth looking continuously tapering designs.
For the DIY customers looking to adapt APR inlet system to other intake setups, we offer the 4" Carbon Fiber Back Tube Separately.
- 4” Cast Aluminum Inlet
- APR Cast Aluminum Inlet to stock turbo flange
Note: The may require special couplers to adapt to other intake systems. The 4" Carbon Fiber Rear Tube not included with APR Cast Turbo Inlet only product.