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2000 Forester S Turbo manual
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1,670 Posts
Discussion Starter · #1 ·
Got tomorrow off work, have a sports cat down pipe to fit-
would it be worth fitting it as
a. I don't have a up pipe to fit
b. I'm not getting mapped for a few months
c. Is it safe to drive with out mapping it?

So many questions so little time ;)

cheers lads
 

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2004 Forester Sti 6 MT
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729 Posts
if wd40 doesn't do the trick I have always used plusgas (took my downpipe off last week to fit a bung for an aftermarket AFR sensor).
But apparently diesel fuel is just as good Plusgas | Motoring discussion | Back Room Forum | Honest John


You will probably need to get a new gasket between the turbo and downpipe.

I would take the intercooler off first as I could loosen the bolts but not get the heatshield off without removing it.

Also...
Do people here use axle stands much? Used them on small cars a fair bit but I ran off mid job to get some halfords car ramps and felt much safer going under the big forester with them.
 

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2004 Forester Sti 6 MT
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729 Posts
Oh yeah, and as I understand it (going through the map table by table), the only thing you really really need a remap for (rather than nice to have for extra power) are:
Different Injectors: (Scaling and Latency tables)
Air intake modifications such as CAI: (MAF scaling)
Different turbo: (wastegate duty tables)
Different fuel : (Timing and AFR tables)

I think ECU logic will pretty much cope with most other eventualities. Obviously major major engine changes such as different compression ratio etc will also have an effect!

I stand to be corrected of course!


Al
 

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2000 Forester S Turbo manual
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1,670 Posts
Discussion Starter · #7 ·
i have wooden blocks :) and brought new gaskets for the whole exhaust system awhile back, just hope i have the right downpipe for it now .

any one tell by looking ?

 

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Don, King of the parts diagram
MY11 WRX STi Sedan 6MT
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99 UK S-turbo
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8,566 Posts
congrats on your 1000 posts don don :)
do i really need an uppipe?
Yes, the stock part is restrictive, harmful to turbo spool up and power and isn't the robust thing on this planet on modified cars, best case it collapses and strangles the engine, worst it goes through the turbine and makes a right mess of it on the way!

More important change than the DP IMHO.

Simon
 
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