Ok I have a 10 plate in my truck and it was really smoking too much I was going to adjust it to clean it up but I put a BPRS 4" exhaust on it and the smoke is almost gone now
is this normal when you do a exhaust mod like that

I have to say I really like this new exhaust and the fuel economy

 

Bigger exhaust allows the engine to breathe better = more air to burn fuel = less smoke

 

Yep, smoke equals wasted fuel/HP.

 

thanks guys its kinda what I figured but the smoke use to be real heavy
you know kinda fun to smoke someone who was pissing you off to minor traces
well I gota say it sure runs better now oh by the way its a MBRP exhaust

http://www.mbrp.com/index.php?page=p...3500&year=1996

made right here in Canada