Borla Performance Industries offers an incredible stainless steel exhaust system for the popular Nissan 350Z. Borla was among the first with a performance exhaust upgrade for the original Z cars. The Borla Cat - Back System (PN 140045) is a true dual exhaust with a H - Pipe and the famous Borla XR - 1 Race - Bred Mufflers for increased performance and improved sound. Independent dyno tests have shown incredible gains of 15 - 20 horsepower torque. When complimented with the Borla custom fabricated stainless steel high quality T - 304 Headers (PN 17221), power numbers as high as 25 horsepower and torque have been observed. Unlike other aftermarket exhaust that actually loose power in mid - range and low end, Borla gains through the entire RPM range. Serious performance enthusiasts understand that true power gains are not simply a big number at max RPM but rather strong torque gains over the full curve. The famous straight - through, patented designs allow Borla exhaust incredible flow increases. The Z car flow numbers improved 27 over stock Flow makes power. Simple as that The Borla true - dual Z - car lightweight high quality T - 304 stainless steel system actually weighs 12 pounds less than the factory single exhaust. Add to this package a great look with large 4 angle cut rolled edge polished T - 304 stainless steel tips and that famous Borla growl. Once again, the genuine Borla exhaust puts the Zoom in the Z car. Isn't it time you stepped up to Borla Performance Industries, the original pioneers of high quality, T - 304 austenitic stainless steel (superior to T - 409 or aluminized steel) free flow exhaust utilizes its patented award and race winning technology to deliver quality, sound, performance gains and enhanced fuel economy - all with an easy bolt - on installation. All Borla street products carry the famous Borla written million - mile warranty.