Tuning Boxes - What have you got and what are your findings

[jason.dexter]

So I just bought the Racechip S for my 1.7 110hp J.
Next week I go on a 3 week holiday/roadtrip to Norway with my Astra.
Hoping it will arrive in time.
Hoping the racechip will make the ride more fun, and a bit better for my consumption.
Also hoping it wont cause any problems because, well, I need the car to get home

Wanted to try this option instead of a 500€ remap.
Will update my findings here.

Racechip S: +21hp
from 110hp to 131hp (on paper)

Recieved and fitted yesterday. Went for a small testdrive and I do notice a difference.
I can feel when the chip kicks in. Engine "roars" a bit more and pulls a bit harder.
Still on the middle setting 3, maybe 4 will be fine as well, but haven't had time to test yet.
Only thing I noticed is that the extra power the chip deliveres does not feel instant. Like it takes some time to kick in. Maybe 0,5 seconds after you press your pedal.
Noticable when you want to drive it hard, but not so noticable when you drive it normally.
Bare in mind I have only driven the car for 10 minutes with the chip, so these are my very first impressions.
Oh and installation was easy

Will update in 3-4 weeks, after my Holiday where I will drive approx 2500 miles.

Where about did you plug in the second plug ?. I'm aware one goes into the fuel rail but unable to find the other sensor.