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Old 17th December 2018, 08:01 PM
irvine irvine is offline
Join Date: Jan 2018
Location: Maroubra, Sydney
Posts: 26
Default Re: freeing up exhaust

Fair comment, but....

Exhausts then AND now are designed both restrictive and with efficiency in mind.

Take for example the “mines” one piece titanium turbo back exhaust for the Nissan r34 grr has been shown to produce up to 100bhp over the standard exhaust system, and that’s before you go crazy on tuning.
It’s been proven even the material of the exhaust can gain bhp.

I know I’ve a lowly 280 d-jet but I’m planning a full stainless exhaust, no cat and centre box with a free flow back box. Should see a “few” bhp.

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