On my 350Z I recenctly designed and installed an expansion chamber to the factory exhaust system. By removing the section of pipe which contains the resonator and replacing it with a 34" X 3" tapered chamber to settle the exhaust prior to the muffler. What an improvment, a much nicer exhaust note, slightly more pronounced throat. But with a significant increase in torque and freedom to rev. May be something to try for under $200.00 before you spend $1400.00 on a full system.
350Z Exhaust expansion chamber
Nov 01, 2003
Last reply: 22 years ago
3 Replies
pics please?
X-No-Archive:yes
Most people are just removing the resonator and like the sound and hp increase.
You can get a cut-out though too.
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No. Try not. Do or do not, there is no try. Max
Dyno chart before and after, otherwise "significant increase in torque" is not believable.
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