« Reply #1 on: 14 October 2025, 19:43 »
It’s just an Akra back box for nearly £4K.
There are many variables for getting extra power out of exhausts which involve each part of the system. As a rule of thumb but far from ‘exhaustive’:
Bigger bore = more top end power, slightly freer revving
Narrower bore = more low/mid range torque.
Then there’s the manifold which is a whole story in itself, plus cats, OPF, bends, type of silencer fitted.
The Akra runs the standard bore, standard cat, standard OPF etc.
Maybe a couple of horsepower if you’re lucky, but lots of car nerd points.
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‘25 8.5R, ‘23 8R, ‘20 8CS, ‘19 135iX, ‘19 TCR, ‘17 Ed40, ‘17 GTD, ‘15 7R, ‘13 GTI PP, ‘11 GTI, ‘09 GTI, ‘98 Ibiza Cupra, ‘05 GTI, ‘06 Polo GTI, ‘04 GT TDI, ‘05 Fabia vRS, ‘02 GTI T, ‘03 Ibiza TDI 130, ‘01 Leon 180, ‘89 mk2 16v, ‘99 Ibiza TDI, ‘96 VR6, ‘98 Ibiza TDI, ‘92 VR6, ‘88 mk2 8v, ‘92 Polo G40, ‘91 mk2 8v, ‘89 mk2 8v, 205 GTI 1.9, ‘83 mk1 GTI, ‘80 Scirocco GTI, plus some others I’ve forgotten
