De-cat truth

[Chip-mk1]

If mapped accordingly there is no reason to low any power low down with a decat, the car does nothing to improve gasflow at low rpm, but it does restrict it at high rpm so will lose you power up there versus a decat.

 

[peanuthead]

I swear this forum reminds me of a pantomime at times! "oh yes it does... Oh no it doesn't... Oh yes it does" just waiting for someone to shout "it's behind you"

 

[DaveB666]

Fitted a de-cat to my otherwise standard 172 cup.
The car drives noticeably better, it felt 'held-back' somehow with the CAT in place. (That's not to say the CAT wasn't blocked/deteriorated).

very very impressed with the car since it was fitted, feels alot better to drive and with a totally standard exhaust system the noise increase was minimal.