Audi S4/S5 B9 Non Sport Diff models - Resonated (Quieter) Cat-Back Exhaust System with Quad GT-90 Polished Trims Seat / Cupra > Ibiza > FR 1.8 20VT (Formula Racing) > 2004 to 2008 fuel pump sealing o-ring

fuel pump sealing o-ring

Example of VW Golf GT sports exhaust (cat back exhaust)

Many exhaust manufacturers also advise these as a necessary upgrade when fitting a performance downpipe

provides an all-round more involved and sportier upgrade whilst also opening up the opportunities for power gains for our tuning partners

the exhaust valve opens allowing exhaust gases to be split between the rear silencer and a rear silencer by-pass

Audi S4/S5 B9 Non Sport Diff models - Resonated (Quieter) Cat-Back Exhaust System with Quad GT-90 Polished Trims Seat / Cupra > Ibiza > FR 1.8 20VT (Formula Racing) > 2004 to 2008 fuel pump sealing o-ringOur range of Cat Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in volume of their exhaust and or add a more suitably aggressive tone. All our products are made from 304L Aircraft Grade stainless steel. This quality material will ensure that your Cat Back system