HAve you even been 155 in it? didn't think so. A great exhaust over todays factory exhaust on a car will give MAYBE 5 more horsepower. MAybe. Get rid of the cats and get long tube headers and maybe 20-25 ponies. Nissans are slugs, There were a bunch of zx350 at the track one day for some kind of get together. I felt embarrassed for the guys they were so slow. $35,000 sports car that runs high 14's at 100 mph.
The comment about the exhaust had nothing to do with performance, it was in response to the noise comment......I full well know what exhausts do...
Yes I have been 155 in it...you don't know me very well do you?
And even if I hadn't the top speed documentation is still there, car and driver does a true top end test on every car they feature, and has them indexed going back years.....
Incidentally just about any car today will likely run all the way to the speed rating of the factory tires, and then hit an electronic limit, the early 350Z's with the limiter removed (no easy task, you have to pull the ECU and mail it off to technosquare, no one makes a programmer for it, or at least nobody was two years ago) will run a solid 167-168
The first 350Z's, rated at 287hp, were high-high 13's to low-low 14 second cars, I never saw one turn high 14's unless it was a manual and the driver couldn't launch or shift for ****. Unless maybe you live in Colorado or something.....In which case everything without forced induction is a ******* slug..
I know because I have the timeslips from my wifes 04 Z pinned on the wall in the garage, as well as having seen dozens of them turn the same numbers here at Houston Raceway Park (elevation 30 feet) on Friday night drags.....
You can have your own opinion of course, but you can't have your own set of facts. I can't stand Mustangs because they are so common, but I also recognize they are one of the easiest cars on earth to mod out to stupid performance levels....
Her car with full exhaust and no cats gained around 25 hp. Dyno proven.
Her car with with everything you can do to one externally, plus the addition of an ATI procharger, was a low 12 second car as well as a daily driver, and put down 415 to the rear wheels, once again dyno proven...Bone stock the 287hp translated to 225 to the rear wheels, so the gain we were getting was 45% running a mild 7-8psi of boost. The engine was internally stock....