super sprint and Fabspeed are low rent crap though !!!Twinfan said:Agreed. £4600 is too much and titanium is not needed on a 1400kg road car. The Supersprint and Fabspeed systems are around half that price, which while still expensive make more sense to me.
Porsche 718 4.0 GT4 / Spyder - Race valved system (Inconel) Brook £3700 seems on of the best ones and UK.
https://www.brookeraceexhausts.co.uk/product-page/porsche-718-4-0-gt4-spyder-race-valved-system-inconel