Hello everyone! So my current set up is:

94 Teggy LS

DC Sports 4-1 headers (OEM diameter)
Invidia 60 mm test pipe
Yonaka Cat-Back - 60 mm piping, 4 inch tip. (i bolted on a really nice silencer from a tanabe exhaust)

Now, my car is way too loud, i hate driving my car at night, and cops harrass me all the time.

I kind of want to get a +06 Civic Si muffler (axle back) to try and make it quiet!!!; however, the piping in a Si muffler is 2.25 inches (about 52mm)... so, how bad is it to go down 8mm in size at the end of the exhaust system? Like, i know i will loose HP, but i dont race anyone so i really dont care, but is it bad for the engine? Do i loose MPG? ... is it any worse than having the silencer in there? Do you think it will make it quieter? Because the silencer made it maybe 3db quieter... lol

I dont want to dump more money into this car because i am currently saving up money for a downpayment on a newer car and im done wasting money on this. So yeah...

 

throw a cat on

 

yOu think that'll make it quieter?

 

quieter than it is now

 

cat, and a long resonater

 

Any idea where I could get those 2 at the size I need them? And it already has a really long resonator...but where could I get a OEM direct bolt on cat at an affordable price