Hello everybody !!
I'm thinking about fitting a Supersprint (maybe another...) pipe instead of the first cata after the turbo. Do somebody have some experience in removing the first cata? How much bhp could be gained ??? ric |
Its not so much removing the cat, as what you do with the gas when it exits the turbo.
A good gas flowed down pipe will give mid range power and torque increases of up to 25bhp and 20lb/ft (STi4), compared to a super mega cat removal downpipe that exits the turbo in the same way. |
Hello,
thanks for your reply !!! Where is the difference between a down pipe and a front cat removal pipe ??? Is the pipe from Supersprint as it is on this page http://www.supersprint.com/subaru/subaru2.htm a good pipe ? Where could I buy a down pipe, I'm from Switzerland... ric |
Pete
What is the overall increase in power on a car with the downpipe fitted? [This message has been edited by David K (edited 24-03-99).] |
ric,I have one mounted on my 98 EU spec model.I also removed the second cat and fitted a Laser backbox.I do not know how much you will gain,no 25 HP for sure . But that was with a Sti version which we don't have in our LHD country's.(Sti has only one cat I believe).Supersprint is Italian so for you as a Schweizerkerl it is nearby,or from Holland ,if you email me Igive you info on that.
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Pete.
So if the first cat is removed, the replacement pipe is a different shape? Or the same shape but gas flowed? My car already has a 3" system and I am thinking of removing the cat, do you do one to suit if so how much. Mike. |
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