Turbo Exhaust (owners of boost only)

[.Kev.]

Just a question about a turbo powered cars exhaust system.

Would like to give the Mini a bit more poke and have seen a decat pipe. I'm aware of MOT rules and the law ect but will this be better then an high flow cat?

The 1st benefit is that the CAT is 4 times more expensive, but im worried about back pressure ect but have no experience with Turbo tuning. I'm sure i've read somewhere that bigger and straighter the exhaust is the better the Turbo can push the gasses out?

 

[Samco77on]

you will never have back pressure problems with a turbo, a decat will be fine.

I would get it, much better noise and power, and probably the odd flame.

 

[Dave Hester]

Heatwrapping the downpipe will make the turbo spool up quicker too

 

[charlesk]

Flow wise a decat will be marginally better than a race (100cell) cat.
I've always preffered the option of a race cat to a decat due to ease of mot etc.
You'll not have backpressure problems by fitting a decat on a turbo. It will be louder than a cat/high flow cat.
The only potential issue is boost creep but that can get sorted with either a re-map or a good boost controller.
Heatwrapping of the downpipe and manifold will help with spooling too.
On a turbo'd car make sure you check fuelling/det after changing exhaut components to ensure that it's still running safe.

 

[Andyrg@ ClioTurbo]

As about, Heat Wrapp is crap pay the extra for ceramic coating

 

[Samco77on]

Heatwrapping the downpipe will make the turbo spool up quicker too

thats optimistic. you do realise that the downpipe is after the turbo??


1986 Transformers Face Palm for you dear sir.

 

[Nickson]

^ LOL!

 

[.Kev.]

Thanks for the advice guys, very helpful.

Love the 80's facepalm too

 

[scotty2hotty81]

thats optimistic. you do realise that the downpipe is after the turbo??


1986 Transformers Face Palm for you dear sir.

Extra 30bhp iirc

 

[Gaz.]

Man up and decat it. Pops, bangs and flames, you need them.