Chip before exhaust?

[mgermasi]

Hi Guys
I went to the 4x4 show and I enquired about fitting an exhaust on my D40.
The sale rep from an exhaust manufacturing company told me that it is highly recommended to install a Chip before installing the exhaust but not other way around.Was that just a selling/marketing technique?
Why would that be? I thought the best way was to make sure the engine can breath properly by installing a good high flow air filter and a good exhaust then you can play with the amount of fuel injected.
Can any one of you explain this to me again? (I'm a bit slow)

 

[180degrees]

99% of the time people get the exhaust first then get the chip tuned to their vehicle.

 

[ben85]

some people don't make much sense.

 

[micksnavara]

Mmm I have a chip on a standard exhaust (steinberner module). Recently I asked if I get an exhaust fitted do they need to re map the ecu, to which they reply " there will be no need " I cannot comment on all chips but this is what I have been advised.