Hi guys i will be getting a precat and sports cat soonish just got to get courtenay panel filter and large bore intake pipe 1st then start with exhaust.

Its booked in next week as car already come with backbox so just getting a custom made centre section what bore size should i go for 2.5" or 3??? Just need to let him know!

Will this make the car alot louder as the centre section is massive!! Its quite loud now with just backbox.

Then i will get the precat and sports cat the 200 cell one then just get FMIC and VXR turbo fuel rail and AFM and remap it again hoping for 280+bhp then this make take me upto a year to get all done but will be awesome!

Good plans then? Oh and can anyone let me know on bore size please?