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Audi B5 RS4 | Dyno Runs @ PowerStation | 21/07/11

When the Scorpion CAT-Back Exhaust was fitted the plan was to get it back on the dyno and see what difference (if any) that would make. I had also done the Airbox Mod and had a K& Induction Kit I'd cobbled together from a few parts to try out, so the plan was for 2 dyno runs, one with the Exhaust & Airbox Mod and a second the K&N Induction Kit fitted.

Things didn't go quite as expected as the figures were way down on the run I'd had in January, clearly highlighting an issue (most likely a boost leak) but I went ahead with the filter swap seeing as it was on the dyno anyhow. At least that showed a good before/after of around 10bhp increase! And the noise - oh my the noise that K&N makes is insane, thought I was going to be sucked in!

Will sort out boost leak and get back on the dyno as I'd be expecting around 380-390 with these mods (without a remap).