Hey,


I'm trying to decide what centre secion to go for on my 03 STi...

I'm basicly prepparing for a Bob Rawle ECUTek re map,I have a Magnex de cat down pipe,a Green goupe N panel filter & Walbro 255 fuel pump.

I'm not sure what diameter th de cat is but I think it's 3',I have just bought a ProDrive muffler and also need to find a centre section,but I'm not sure what diameter the ProDrive muffler and centre section is? and will it caus any problem with the 3' de cat?

I'm also not wanting the car too loud,so any tips on what centre section to go for?

Thanks,Ben

here's the de cat...

 

Prodrive is 2.5" looks like you need to reduce from the 3" the down pipe terminates in. You might be better off selling the prodrive back box and getting a 3" system.

 

my decat bolt's straight upto my stock centre section tho? and obviosuly the prodrive will bolt straight onto the other end of the stock centre section?

or are you saying it will fit,but won't work well?

Thanks,

 

if it fits I would just go for a deresenated centre pipe, thats what I went with and with the prodrive backbox sounds great but not to loud. I bought a H&S one, was about £100.

 

did you have a decat also daz? I'm hoping mine won't be too loud

 

bob mapped my last sti with much the same bits as yourself,im sure you will be pleased.312bhp and 320 lb's was the result on ****ty bp fuel which he did say was'nt great.so one bit of advice get it mapped on v-power to get the best from your baby