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Re: Anyone fitted an updated exhaust on a jtd?
just changing the back box, won't do much to performance.
If you do remove the pre-cat and main-cat together with a free-flow back box, then you will notice some performance increases especially if the car was remapped. All of them together you might be looking at 10bhp...depending on the ECU map.
I might try looking for my exhaust sound before the BMC-CDA....and post it here, so you can hear it. I really like the sound of my car...it might scare some people as it sounds like you have a blow-off valve.
The best thing about it, is that you can make sounds and be loud, but when you fell lazy or tired and drive slowly, you won't hear anything.
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