lguillermocp

I have the OE Uppipe that has a Cat in the midle. Do i need for example a OE but without the cat for get 300 or 320 with a VF35 turbo?? will i feel the diference after the swap?

Thanks for your help and experience.

LG

Midlife......

iTrader: (2)

err....... Personally I'd ditch the up-pipe cat if I had an MY02 WRX bugeye and looking for over 300BHP !! too much chance of melting the cat and throwing the bits into the turbo !!

Midlife....

with a WRX bugeye without the up-pipe cat LOL

Gaz7612

i was told i needed a up-pipe before i had it remaped, i think it makes a differnce myself plus as Midlife says it can't melt if its not there lol

Scoobywrx1979

i had my up pipe changed before having remap as they told me anything over 300 bhp on bugeye can melt the cat and send bits into my turbo. Has been known to happen. Better changing to be on safe side.

ride5000

always remove that up pipe cat. it has no downsides (other than pain in the *** and cost).

lguillermocp

An STI Uppipe for $200. Is it expensive???

Regards from Peru.

LG

hades

You'll notice a significant difference after the swap, and as said, there's a risk of the existing uppipe breaking up and killing the turbo, even at "only" 250bhp or so. So that's a yes.

I'd be tempted to look at various aftermarket up-pipes, but I don't know who charges what to ship to Peru.

MaDaSS

Edited, lol. post removed.

lguillermocp

any brand in special? there are a lot on ebay but they sound unknow to me.

LG

funkyspider

ppl rate the Hayward & Scott slip jointed up-pipe for higher power/larger turbos.
Magnex slip-jointed are supposed to be good for TD04 wrx turbos as they have smaller inner diameter which apparently improves early spool up on the smaller turbo.

Stories exist of the solid ones cracking, and the flex joint ones splitting at the joint, bit dont know how common it is. I went for magnex on my WRX - fitting in a cpl weeks but also have a H&S which I picked up for 60quid second hand in case I fit a larger turbo in the future.

Have a search for 'heat wrap' in this forum as you may as well wrap it before fitting.