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Exhaust Test

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  • Exhaust Test

    G'day fellas,

    So I've been recently considering freeing up the exhaust, but was unsure (and also been informed) that it doesn't make much of difference due to the fact the DPF causes the majority of the resistance.

    Well....what I have done is unbolted the flange directly under the drivers seat and re-bolted it as you can see in the pic and so far I've run just over half a tank of fuel and my consumption has come down from 9.6L/100km AVG to 9.0L and I think it is potentially still dropping! The car also feels as though it has picked up a little low end to mid range power, albeit only slightly. I travel 65kms to and from work each day in what wold be considered extra urban. I do a roughly 50/50 highway then a suburban commute.

    I spoke with an exhaust shop who has quoted 500 odd for a stainless steel 2.5 inch mandrel bent pipe from the DPF back which will open up the standard 2 inch pipe and make it much more free flowing. For those that are concerned about noise. There is none. It's still so quiet I cant even hear it idling. The DPF removes all those sweet turbo and exhaust notes!

    Anyways I'll post up any further results in a week or so...

    Cheers, Tim.
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