2005 sti
13 April 2020, 02:06 PM
#1
Scooby Newbie
Thread Starter
2005 sti
hi am needing some advice...am gona decat my exhaust (turbo back.). my car has prodrive pack.is it only the down pipe I wil need to change or does centre nedd decat. Am sure up pipe is already decat... but could do with some advice. Car will be remapped soon as I get everything ready
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14 April 2020, 09:47 AM
#9
Scooby Newbie
Thread Starter
2005 blobeye👍.... so i only need decat downpipe? Then remap I will have to drive car to get remap so stay off boost??? Car has prodrive ecu etc.is it essential to get remap?
14 April 2020, 11:33 AM
#16
The first cat is the most restrictive part of a Subaru exhaust system, I would have to disagree with you when you say little is gained.
Each to their own though.
https://www.scoobynet.com/wanted-18/...e-06-07-a.html
Siv
Each to their own though.
https://www.scoobynet.com/wanted-18/...e-06-07-a.html
Siv
on a 2.0 PPP there is not a lot of difference between a decat & sportcat at that level of tuning, hence i would advise him not to bother - better still he may as well speak to his mapper to discuss the worths & his overall plan, with OP being based in scotland i assume will be Andy Forrest.
14 April 2020, 11:45 AM
#19
Scooby Newbie
Thread Starter
yea will be Andy that remaps.... I emailed him a while back as car is now he can achieve 350 bhp with ......low/high boost and also launch control option😊
14 April 2020, 11:57 AM
#21
i know, and i was just adding more info on to it for him.
not arguing, not dick swinging or owt - just stating that PPP sportcat flows very well without the need to replace for a decat - i assumed with him being a new member he had just heard it had a cat and thought ahh get it out asap.
everybody wins - all the info is on here now
not arguing, not dick swinging or owt - just stating that PPP sportcat flows very well without the need to replace for a decat - i assumed with him being a new member he had just heard it had a cat and thought ahh get it out asap.
everybody wins - all the info is on here now
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14 April 2020, 02:09 PM
#25
personally I like the look of a front mount on a car but that's just me,I had mine sprayed silver so it was visible.
Spool up time will be slightly slower with a front mount.
nothing wrong with having one at your level it's just not needed that's all unless you are tracking the car.
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14 April 2020, 02:25 PM
#27
I had two maps done by Bob Rawle on a rebuilt and forged 2003 Wrx Sti PPP with a VF43 turbo.
Map 1 PPP system 301 bhp
Map 2 Hayward and Scott full 3” decat system 343 bhp.
In Bobs words not mine, it’s more than likely your prodrive cat is causing your restriction.
He was right, and 42 bhp is quite a big difference in my opinion, it was a totally different car with the decat.
Im not sure if Bob is still on here but I think he knows a thing or two about Subaru tuning.
No argument here and definitely no ***** waving with my little acorn.
Siv
Map 1 PPP system 301 bhp
Map 2 Hayward and Scott full 3” decat system 343 bhp.
In Bobs words not mine, it’s more than likely your prodrive cat is causing your restriction.
He was right, and 42 bhp is quite a big difference in my opinion, it was a totally different car with the decat.
Im not sure if Bob is still on here but I think he knows a thing or two about Subaru tuning.
No argument here and definitely no ***** waving with my little acorn.
Siv
@itch202 wouldnt bother with a FMIC either unless you pick up a decent one for handy money
Last edited by Gambit; 14 April 2020 at 02:53 PM.
