Dump Pipe Replacing Tips

[DAN-33]

Got a dump pipe and hi flow cat on there way to match my 3" catback setup.

Any tips on removing the stock stuff? ive heard the bolts can snap,

Guessing just soak them twice a day for a few days before doing it or or maybe get the engine warm and crack them while warm, then undo fully when cold?

For a R33 btw

Also, whats the torque spec for when i re tighten them?

[Hadouken]

It will be harder to do when they are hot due to metal expanding when hot!

Big breaker bar cya later

[kosmo90]

13mm spanner/socket, i soaked mine in rost off which worked really well.

The middle one next to the inner guard is a real bitch, i had to cut a spanner in half after advice in Hypergears thread.

[JordansR32]

Just soak it in wd40 the night before u do it and u will have no trouble. Stock dump is easy to get off, u can pretty much get to all the botls without a hassle, the bottom to u might have to go under the car and do it from the bottom

[Simon-S14]

Rost off

[DAN-33]

Cheers, ill drench them night before and again on the day.

[89CAL]

I wound mine out 1 turn then back in half a turn. Gives the rust a chance to break off. But as said soak them in wd40 etc for a few hours before having a go and undo slowly

[pipster11]

+1 to the 2 setpes forwards 1 step back method

It worked really well for me

You can also hit it up with some spray before you wind it back in half a turn

[Odium]

Don't do what I did the other weekend.... Removed them successfully (only been in there for 9 months or so) and then got a friend to put a top one in by hand while I held the dump/front pipe from underneath.

It got halfway in by hand and it got a bit tight, so he grabbed a ratchet spanner and started on it...

I soon realised it was way too tight and tried to back it out slowly with more wd40, but it snapped off

Had to call The Thread Doctor to come out and remove it like a sir.

TL;DR

Be Careful.

[DAN-33]

Ahh nasty, thats what im hoping doesnt happen.

Im going to clean up the bolts with a wire wheel and the treads in turbo too. better safe then sorry.

Use loctite on them? this is my first dump pipe removal ever

[GTSBoy]

No, no loctite. Nickel anti-sieze would be better than loctite by a factor of infinity trazillion. But if you use anti-sieze, then you really need decent lock/dome washers or nuts.

[89CAL]

I have anti seize on mine and just bolts. No problems and so easy to take them out

If your worried I'd use a spring washer

[DAN-33]

Thank you, appreciate the Help,

Good Forum, keep it up !!