[m5james]

Originally Posted by blaferty

What are your impressions after install of decatted oem dps?
Do you have a tune as well?

Noticeably louder cold morning idle, but still just as quiet when it settles down...you'd never know otherwise at normal idle. Driving around you hear a little more woosh from the dash area since the turbos are right there, but only for a moment as the engine sounds take over after that. I get only the slightest drone when the car is in a really high gear while going up hills, but a little more throttle, it downshifts and you'd never know the wiser. Throttle response feels a bit quicker, less lag, otherwise it's not some night and day power difference. I think paired with a Stage 2 tune, say when running factory cats vs catless, that's when you'd notice the most.

I went from stock to catless with a Stage 2 overnight though, power is definitely night and day now as the backend feels like it wants to wag its tail on the wet onramp I use everyday...it's quite fun. As most others with a tune have noted, non-M mode now feels life like M mode but better, M mode the throttle response is more instant, merging and passing is easier and overall more fun.

Naturally it's gotten old now, so now I want more...time to look into meth and more aggressive tuning :-)