Which cat do you leave in?
#1
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Which cat do you leave in?
I'm after a turbo back exhaust system for my classic STi, would like a straight thru system but then MOT's are a problem.
So, if i can run a system with just one cat does it matter which one you remove (the downpipe one oe centre section) with regards to emmissions and power/torque
So, if i can run a system with just one cat does it matter which one you remove (the downpipe one oe centre section) with regards to emmissions and power/torque
#2
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i left my centre section in and passed the mot, its the easiest one to remove and fit. if your worried and can afford it get a sports cat downpipe and remove the centre cat.
#4
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So basically i need a sports cat downpipe as part of the system, obviously a bit of sound would be nice but performance above all and must pass track regulations,any suggestions, was looking at H&S but seem very expensive, also looking at scooby world ninja sports downpipe with vortex afterburner and straight thru centre? dunno how loud these are tho
#6
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Mines on a k plate hasn't got a cat the mot are a bit more freindly on that year as its the cross over when the new emissions came in
KIPS
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