HF cat and Muffler

[jayson_waltz]

^because u only gain about .5 hp taking it off, so y be illegal? or if you are being serious, it takes a bunch of bad exhaust crap and basically turns it to harmless stuff like water

for a 4cyl, i'd have to say go with the 2.5. i'd think 3 would sound a bit shitty and wouldn't make a big hp difference with just a supercharger. now if you had a turb i'd go with the 3".

[spyhunter]

Originally Posted by jayson_waltz

^because u only gain about .5 hp taking it off, so y be illegal? or if you are being serious, it takes a bunch of bad exhaust crap and basically turns it to harmless stuff like water

for a 4cyl, i'd have to say go with the 2.5. i'd think 3 would sound a bit shitty and wouldn't make a big hp difference with just a supercharger. now if you had a turb i'd go with the 3".

I gained more then .5 taking my cat off.

Actually my exhaust setup is probably the straightest of anybody with an n-body.

Log manifold, turbo (side note: wastegate dumps into the atmosphere instead of being recirculated back into the exhaust, teehee.), 2.5 downpipe into flexpipe, into 3inches into Apex'i N1 can, which is closer to 3.25inch.

Sounds awesome.