mcfc11

hi guys,

i have a 2003 blobeye wrx ppp wagon and was wondering if putting an sti redtop manifold will have any advantage over my standard one, i know the sti redtop has the tgv deletes but i have no idea what they are or if it will make any difference?

i plan to get an sti top mount and a set of pinks, i already have a walbro 255 but not yet fit because i want to get all the parts together before fitting them all so i only have to get a remap once.

when i do all the above will i be better to go down the decat route or leave the prodrive cats on?
also what else would i need to get the car to around 320bhp just i dont want to go higher due to the standard gearbox as i asked before what is a safe bhp output for the box and was told around 300 to 350.

cheers.

ditchmyster

iTrader: (7)

There is nothing to be gained by changing the manifold at that stage of tune. You don't have prodrive cats, you just have the centre cat removed and a prodrive back box. You would benefit from removing the other two cats, one in the up-pipe and one in the down pipe which if you can get one a prodrive sports cat down pipe would mean no fuss come mot time, and get either a harvey up-pipe or an STI up pipe to increase flow/bhp and spool.

dnc

You will need a different turbo for 320, a VF34 or 35 is a good option

User 21721

You will also need a decent panel filter. I would stick to 330hp max, so 320 should be fine.

Regards,

Subaru Collector 555.