removing the muffler will have no real effect on performance it is only there to control noise the engines back pressure is dictated by the manifold front pipe and cat. lowering back pressure on a naturally aspirated engine is often bad for performance but a sports cat could be worth trying.
Originally Posted by no name I have sport exhaust Remus on bravo hgt and i want to cut the muffler but what will be the effect without muffler. The car will go faster or what You will be pulled more by the police and your neighbours will start letting their dogs onto your lawn to releive themselves. Its just going to be noisier.
My car make too much noise anyway i dont have a cat. I have a muffler and sport exhaust. I cut the catalysator i now the car is faster than before.
I dont know why there is a middle box on some fiats . Our Barchetta had one which was removed when we had a stainless steel exhaust fitted. If you look underneath most later fiats (2010 onwards and certainly 201112 models) you will find most have no middle box. Just a close coupled CAT and a long straight tube to the main rear box. I suspect that muffler design has improved over the years and due to
Update Removed the middle box which is a muffler somehow its quieter on cruise and Barks when you boot it
I see no-one understands the principle of back pressure. I can explain it simply as a high NEGATIVE pressure on the back of the exhaust valves. What this does is create a suction effect so that as the exhaust valve is opened air is drawn through from the higher pressure cylinder to the lower pressure exhaust. The key to achieving this is to increase exhaust velocity. On a naturally aspirated engine
lol your spot on with that one jug I think it may be an induction muffler. As mine is on the bottom in a similar place to where the 1.2s filler cap is and as mine doesnt have a recess for a filler cap theyve put it on the bottom. And span it to the back of the 1.2s becasue the filler cap is in the way
u could look oil... if u see anything off with that... u can make sure its hc... theres alot of threads about the signs well basically theres 2 ways for water to dissapear 1 internally - it gets to burning chamber and goes out from muffler 2 external - leaks out somewhere (for some time it could leak to some other place but not forever)
build your own exaust may i suggest a random tech high flow cat and a flowmaster 40 series muffler. and bout 2 to maybe 2 12 SS pipeing.
on most cars a cat back system usually cant affect performance at all however the bravoa range seem to get some of the exhaust back pressure post cat (from the cat back part of exhaust). this means you can both increase and decrease the overall back pressure to a certain extent by fitting different cat back systems. adjusting the overall back pressure can have an effect on performance. how does back