chrispy192

Hi,

I've got a 55 wrx hawkeye, I'm looking to get a k&n panel filter, decat and Ninja II exhaust.

Do I need to get a decat downpipe (do they even have cats on the hawks?) and would I need to get it mapped as soon as having it all fitted or could it wait a couple of weeks till I manage to go and get it done?

Thanks,
Chris.

swfc71

im looking for a good sounding exhaust for my 07 sti need help choosing

triggster

iTrader: (4)

If you go full exhaust (especially downpipe from turbo) you will need a map, car can be driven but would stay off boost.

There are lots to choose from, im a fan of the quieter ones, currently have the cobra trackday sys cat back on my blob wrx thats lovely but still can hear the rumble a bit too much for my licking,
Prodrive is a good mix of everything especially coupled with some hayward and scott mid pipes and downpipes etc
I

Tidgy

i've got one of scoobyclinics scr full decat on my hawk, quiet enough for track days so not shouty on the motorway yet got a nice rumble when you give it the loud pedal

triggster

iTrader: (4)

To clarify on the blobeye, im currently cat back so no need to remap etc, you can take out the first cat and will still be ok this is with a decat pipe, if you then go downpipe decat then this is when you need the map and would benefit best gains, it gets complicated as that would be a 4 part system however a lot of makes do it in 3 parts back box, mid scetion (to cat back point) then Decat downpie one piece
Hope that explains it a bit better