The SUPERCIRCUIT UEL (un-equal length) Headers featured below is created for the 1st generation Subaru XV (XV1) not only to improve horsepower and low-end torque, also for superb 'boxer' rumbling exhaust sound!
Firstly, the factory stock original header with catalytic converter is removed from the FB20B engine. The picture below shows how the exhaust ports looks like after the factory stock original exhaust header is removed from the engine.
The SUPERCIRCUIT unequal length headers a.k.a. UEL Headers is designed with the two primary pipes from one side of the boxer engine, traveled at different distances to the collector as compared to the other two primary pipes from another side of the engine; causing the exhaust to create the iconic 'Subaru boxer rumble'!
This catless SUPERCIRCUIT UEL Exhaust Header* is hand fabricated with grade 304 mandrel bent stainless steel and TIG/Argon welded on CNC machined stainless steel flanges by our master craftsmen here at the SuperCircuit Exhaust Pro Shop!
Pictured below, the SUPERCIRCUIT UEL Exhaust Header* is installed. It is designed for direct swap and straight bolt-on application, no further modification is required during the installation process.
*thermal wrap is optional.
Please contact us or pay us a visit to our showroom in SS13 Subang Jaya Industrial Estate for further information or to customize the exhaust systsem for your ride!
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