|
2.25 sounds right, its been ages since I had an NA 240SX. I recall at the time I upgraded to 2.5 inch and I had a Remus dual tip exhaust, I too wanted to look covert. Sounded OK, but overpriced muffler and crush piping didnt do much of anything for performance. Current setup with my SR is all 3.0 inch. I just yanked my 3" Magnaflow stainless steel cat and fab'ed up a stainless steel "test pipe" with flex section and wideband o2 port.
On an NA car, I really wouldnt advise being without a cat. It sounds shitty, it smells shitty. Unless you're turbo and blowing fireballs, keep the cat. Use all 304 stainless piping, flanges and fasteners - that will keep corrosion down to a minimum.
ps: I run an "angled" RSR GT2 coffee can exhaust, but... its powdercoated black. :-P
ps: I advise checking under the car to confirm your exhaust diameter. Use a caliper.
|