Peruvianrx7

iTrader: (25)

Do i need to remove the precat entirely or just the four bolts connecting to the turbos?

Alex

RotaryRX-007

It might not need to come off but the added clearance to slide the turbos off the manifold will be a huge help. I've never done it without taking the downpipe off first... and now that I'm thinking about it, you might have to pull the precat/downpipe to gain access to a bolt/nut or two.

While you have the precat off, throw it away. They retain way too much heat in the engine bay. I have a 3" downpipe I'll sell to you for cheap since you're local.

cptpain

iTrader: (1)

Theres quite a few bolts you'll have a hard time getting to.

Its a requirement to remove the pre-cat to remove the turbos.... otherwise its impossible. You need the room to slide the turbos out and to get to like 5 bolts. 2 of which are for the rear turbos intake pipe

ArmenMAxx

iTrader: (21)

its MAYBE possible if you remove the studs, but in that case you essentially can remove the pre-cat. Its pretty tough to slide the turbo out after removing all the bolts so youll be doing urself a big a favor by taking the time to get everything out of the way. Best with two ppl. One person under the car and one on top.

'Ryuji'

If you remove the Pre-cat it'll make things that much easier, trust me. Taking out the twins with the downpipe out is already a PITA.