astra H

[let_nova]

are the airboxes and exhaust very restrictive on these? lately i have been getting poor fuel economy. doing 20 miles to work can use around 50 miles off the on board computer. i know these are not the most accurate but im sure it didnt use that much before.

i dont do over 60.

[Stuart]

why would the airbox/exhaust affect fuel economy... (aside from a clogged air filter or blocked cat)


lots of short runs/cold starts dont help.

[let_nova]

feels very sluggish.

always start the car and leave to warm up before leaving also.

59k on the clock