gus the bus Posted December 13, 2005 Posted December 13, 2005 Folks, As a few of you know I am planning (considering!) along with my other list of mods going for the full decat and possibly headers and up-pipe. Simple question is will I need to get a remap right away or can this be done @ a later date!? Dont want to spend £1500ish in one go if I dont need too (couldn't afford it @ the mo to be honest unless I can get the Motorbike away). Answers on a postcard to. The Gus Bus
the squiggle Posted December 13, 2005 Posted December 13, 2005 On a std Blob-eye ECU it will try and throw a Check Engine Light and possibly overboost like crazy. To be safe and get the best result from the decat then get it remapped just after the full decat is fitted Grant
Gumball Posted December 13, 2005 Posted December 13, 2005 i would say that you need to get it remapped, escpecially if you are changing the headers etc also. i put a nur spec r decat on my car and it ran like a box of frogs. engine management light on, boost spike, mayhem in a can really and not for the right reasons. JMHO though but i would get it done then mapped to maximize the potential
gus the bus Posted December 13, 2005 Author Posted December 13, 2005 Cheers Grant and Chris, thought that might be the case Is £1500 realistic to get decat, headers,up-pipe and remap? Gus
the squiggle Posted December 13, 2005 Posted December 13, 2005 Sounds about right and i would add in a £85 fuel pump as well The gains from the remap and decat will be more than worth it Grant
imprezapete Posted December 13, 2005 Posted December 13, 2005 Sorry to high jack the thread a bit, but am I going to be ok with my 1 CAT in the up-pipe? I removed the Centre and Down-pipe CATs now. I also removed the centre box and replaced the back box with a STi standard box to keep the noise down.
st3ph3n Posted December 13, 2005 Posted December 13, 2005 Gus. Did you account for your PPP? I believe it removes some of the cats. So you can possibly save some cash as you wont need to remove them all. I'm personally going for the decat + remap next year, money willing.
gus the bus Posted December 13, 2005 Author Posted December 13, 2005 Grant, what sort of additional BHP output should I expect? Cars running the PPP @ the mo. Gus
gus the bus Posted December 13, 2005 Author Posted December 13, 2005 Stephen, I was just thinking about that as you can see! the PPP removes the back CAT right!? Gus
Gumball Posted December 13, 2005 Posted December 13, 2005 quote- Sorry to high jack the thread a bit, but am I going to be ok with my 1 CAT in the up-pipe? I removed the Centre and Down-pipe CATs now. I also removed the centre box and replaced the back box with a STi standard box to keep the noise down. ------------------------------------------------------------------------------------------------------------------------------------- again......i would prefer if it was my car to have the remap without hesitation. the cats not being there and not holding shat in your exhaust and spitting it all clean out the backare going to effect the way the car runs very slightly. theres the chance that your ECU will adjust itself slightly to meet the decatted environment. is the egnine mgmt light on??????? IMHO if it is mate then its time to visit the guru for ecutek and another 500 withdrawn from the bank of "make the rich richer with little effort Plc"
Gumball Posted December 13, 2005 Posted December 13, 2005 Gus, about 5-10% increase and no the centre/back cat stays on. PPP is the sports downpipe, and the back box, the centre section has a cat on it and is a rusty shatty standard scooby exhaust section that was on the car to start with
p1ggm Posted December 13, 2005 Posted December 13, 2005 well after the fmic i am gonna need a map, car runns terrible on motorways, but fine on back roads i would reccomend the map after the de cat, i did it with mine got 327 on the rollers too so i was happy
irish al Posted December 13, 2005 Posted December 13, 2005 << Sounds about right and i would add in a £85 fuel pump as well The gains from the remap and decat will be more than worth it Grant >> It sure is I had replaced the exhaust from the turbo back and had a cel fix fitted, it was rough, loud and thirsty. After the headers, uppipe and remap it was quiter and not as thirsty, but runs smoother and fith gear is like third gear. Fantastic. samco hoses for intercooler, heatwrap and spark plugs ???........ and the list goes on
the squiggle Posted December 13, 2005 Posted December 13, 2005 << Sorry to high jack the thread a bit, but am I going to be ok with my 1 CAT in the up-pipe? I removed the Centre and Down-pipe CATs now. I also removed the centre box and replaced the back box with a STi standard box to keep the noise down. >> There is a chance of the pre turbo cat breaking down when you up the boost level Cat breaks down and bits fly into your turbo equals dead turbo Best decat the up pipe Grant
~ ~ Cal ~~ Posted December 13, 2005 Posted December 13, 2005 << Gus, about 5-10% increase and no the centre/back cat stays on. PPP is the sports downpipe, and the back box, the centre section has a cat on it and is a rusty shatty standard scooby exhaust section that was on the car to start with >> Negative commander.........on a PPP wrx you get Y-piece intercoller hose, remapped ECU, prodrive BB and decat centre pipe......downpipe is left alone ( & only changed for a hig flow cat on the PPP STi) WRX PPP WRX STI PPP If he ditched the downpipe with a ramp he'd be looking at 270-285 bhp IMHO HTH Cal
Gumball Posted December 13, 2005 Posted December 13, 2005 my mistake, i thought the wrx ppp was the same set up as the sti
gus the bus Posted December 13, 2005 Author Posted December 13, 2005 If he ditched the downpipe with a ramp he'd be looking at 270-285 bhp .....and with the Headers and up-pipe? Irish Al you have all this and the remap what are you kicking oot BHP wise? Gus
irish al Posted December 13, 2005 Posted December 13, 2005 Will find out this week, definately before sat so will let you know. My wrx is limited by the turbo and intercooler, but am sure yours isnt. Isnt your car still under that helpfull but annoying thing called warrenty ????
gus the bus Posted December 13, 2005 Author Posted December 13, 2005 Yip, sure is mate! Thats why I'm still THINKING about it. However, I'd rather get it decatted the now tho so I get the best part of three years without the hassle of MOT's Or.... maybe I should just stick to the Rallytech Spoiler and other body mods for now Gus
fai17 Posted December 13, 2005 Posted December 13, 2005 Warranty is not an issue if you've got good friends. If you get the things done,i would expect about 300bhp. Meercat full snakehead down pipe back 3 inch system £550 Andy F Ecutek remap.....................................................£550 GruppeS or GT Spec Header and up pipe.......................£450 Labour to fit headers at Greersport ..................£100 - £150 Bosche fuel pump supply & fit at above.........................£150 total £1850 It's a bit more than you thought but you can do it stage by stage. Like start with the exhaust and fuel pump.The car will be fine as i was driving like that for about 2 months but had to get the CEL reset at Subaru. Then headers and finally a remap. Your car will to great at the end tho
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