Decatted Down Pipe on a RB5 Wrsport

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21 May 2003, 05:17 PM

RB170

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OK so now my cars been sorted and it cost less than i thought

I'm considering putting a decated DP on it

Other than the DP what considerations do I need to make

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22 May 2003, 11:54 AM

RB170

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Helloooooooo anyone there

Do I need a knock link, lambda link, boost guage ?

If I do why

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22 May 2003, 02:32 PM

Pete Croney

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No you don't.

Fit it and enjoy

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23 May 2003, 11:37 AM

RB170

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Cheers Pete

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27 May 2003, 01:25 PM

RB170

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Had a 3 -2.5" open neck SS down pipe fitted yesterday and all I can say is

WWWWOOOOOOOOWWWWWW!!!!

Why did I wait so long ?

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04 June 2003, 12:41 PM

mutant_matt

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You *might* need to do something with the boost control to keep spiking in check when the weather gets colder which *may* induce overboosting.....

Matt

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04 June 2003, 05:49 PM

Pete Croney

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Matt

Rock solid boost control because its an RB5, not an STi7.

Get back in the cupboard

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05 June 2003, 08:13 AM

mutant_matt

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...yeah 'cos nobody ever had any problems with a PPP + Decat downpipe and overboosting did they?

What do you think set John Banks on the path?......

Matt

P.S

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05 June 2003, 10:13 AM

Pete Croney

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Nothing cleaning out the wastegate and surrounding pipework didn't fix and even then, only after a dealer got generous with the oil filling at service.

97/98 cars were a bit more sensitive.

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06 June 2003, 08:18 AM

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mutant_matt

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You did notice the

Quote:

*might*

and

Quote:

*may*

right Pete?

Matt

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03 August 2004, 12:17 PM

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slam

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I've been thinking about fitting a de-cat downpipe to my RB5 WR Prodrive.

What sort of power increase would I expect?
Does it make the car noisier?
What's the best downpipe out there?

Alternatively, would replacing the PPP ECU with a standard MY99 and going for a TEK2/3 be a better option?

confused - please help!