exhaust system

[aminulislam]

i have a astra mk4 2.0 ltr sri. it has a single exhaust pipe at the d moment. i want to know is that damaging my car because not enough power coming thru. or do you recommend a twin pipe exhaust. also is it drinking xtra petrol because it has a single exhaust instead of a twin pipe. please help

[NORMANTHEDOG]

do you think vauxhall only put a single pipe on the car so it could damage the engine in any way,you have been told why in your previous question,get it serviced properly.

[david1702198]

its drinking extra petrol "cos its got a single tailpipe"??? maybe the car isnt as powerful as you think or maybe its guzzling petrol because your bursting the a r se out the motor!!!!