So, my car was nearly empty on fuel yesterday so I filled up with tesco 99

No

Sometimes when changing gear or when revs coming down there's a exhaust pop

I like

It but wondering if anyone else has this and is it just the new fuel

yep, mine does it :D , I had pops and bangs mapped in

 

it didn't do it much through the winter, but it's doing it more often now that the weather is warming up

Ah that's explains it as it was 20 degrees today . I have noticed it's got a straight through exhuast aswell

Yep same for me I remember once going past a crossing and it did a massive bang I even heard the old lady say " You ******" as it made her jump :D 

Yep love it !! Had a tsl system on my white one !Removed! that popped

Just unburnt fuel reacting , best bit trying to get it to ignite