Standard up-pipe size?
 

Looks like the reason for by boosting issue is a knackered turbo - so sourcing a replacement TD04.

My up-pipe isn't in good condition either with the pre-cat starting to flake a bit. So looking to change it for a standard STI/decat uppipe.

What is the standard size for a 2005 WRX blobeye up-pipe? 1 3/4" or 2" pipe?

Many thanks
Richard

I wouldn't put a standard one on again. Have a word with Alyn at AS Performance, get a Garvey trick one, and a map tweak.

Better, lower revs spool.

Thanks - I'll have a chat with Alyn.

Car is a PPP already, and don't feel the need for a remap - slippery slope!

If you fit a Harvey up-pipe, you'll need a map tweak, it boosts better and flows better.

Ah - thanks for the heads-up.