Large Bore Downpipe with HJS Hi-Flow Sports Catalyst (For Milltek Cat-Back) (Audi/Seat/Skoda/VW) Porsche > Boxster > S 3.2 987 Gen1 > 2004 to 2009 5mm pipework and fit from

5mm pipework and fit from the catalytic converter section backwards (Cat-back) these exhausts replace the centre and rear sections

This Audi S3 performance exhaust fits from the turbo backwards (turbo-back system)

leading to a muted and slightly disappointing sound

Usually a combination of factors accounts for the presence of these particles that cause excessive wear to vital components unless they are removed

Example of Mini Cooper S sports exhaust (Cat-back - Non Resonated)

Large Bore Downpipe with HJS Hi-Flow Sports Catalyst (For Milltek Cat-Back) (Audi/Seat/Skoda/VW) Porsche > Boxster > S 3.2 987 Gen1 > 2004 to 2009 5mm pipework and fit fromOur range of Cast Downpipes offer further enhancements to gas flow and heat management, being designed to increase efficiency and performance gains. The HJS High Flow Sports Catalyst is the highest quality and best performing aftermarket catalyst. The quality of the product is made to reduce the density of OEM catalysts and be able to maintain emission regulations with daily usage. Standard OEM catalysts are usually 500 600 cells, our high flow