Nameless Mid Pipe for *Catback Conversion

2015+ WRX / 2015-2018 STI

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This Namelss mid pipe converts their axle back into a catback system.
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Nameless' 2015+ WRX & STi Midpipe features a 3" primary circuit with a unique Y section that ensures optimal flow transition from the main 3" circuit into our 2" rear circuit axleback exhaust. The Y features a stepped design which puts larger diameter tubing at the transition of gas flow as the exhaust is split from the main circuit into each of the rear circuits of the system with a triple stepped graduation to the 2" rear circuit. This design builds higher torque than any other catback on the market while building the same horsepower numbers that are seen in most higher end catback exhaust designs. Additionally, the 2" secondary circuit design biases the exhaust sound frequency to ensure drone-free operation.

This midpipe is the forward component in their Catback Exhausts for the '15+ WRX & STi Sedan.


The midpipe is a 3 piece design featuring latch-over V-band clamps at the two connections in the middle of the system with factory fitting 3" flared flange at the forward (downpipe) end and factory fit flanges at the axleback section. These latch over style V-band clamps allow for easy installation and the three piece design and positioning of the V-band flanges in the system allows for maximum adjustment for ground and vehicle chassis clearance. The midpipe ships with a proprietary 3" donut gasket which allows you to connect the larger midpipe main circuit to your factory downpipe or to a Nameless Performance 3" downpipe with no restriction to flow between the 3" downpipe circuit and the 3" midpipe primary circuit.

The system is built entirely of T304 stainless steel to ensure top quality corrosion resistance and long life of the product.


When coupled with any of their axleback exhaust designs, the system has shown gains of up to 34ft lb of torque at the wheels and 22whp on the EJ series STi and test data should be released for the WRX shortly.

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  1. Made in the USA

    By Jiffy November 25, 2022

    I bought the nameless 5 inch mufflers at first sounded good with just the mufflers but I wanted more. I’ve added the mid pipe and LOVE IT! Just make sure you have it adjusted right if not it will rub again the rear differential. Also you keep the oem donut gasket on and add the additional gasket they supplied

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