350Z  VQ35DE/HR 2003-2008
Stage  1

Supply and fit H-Dev plenum spacer (link) (Not required on 350z HR)

Supply and fit high flow air filter (DE)  (HR)

Uprev Remap (Uprev)

Gains of around 10-15bhp and 10-15 ft lbs Improved throttle response and livelier performance especially in the lower gears

Speed limiter removed on imports

Vehicles fitted with cruise control can be set up with multiple maps including a valet mode

Stage 2

Supply and fit H-Dev plenum spacer (Link) (Not required on 350z HR)

Supply and fit high flow air filter (DE) (HR)

Uprev Remap (Uprev)

Plus full cat back system – Milltek or Cobra (Milltek) (Cobra)

Sportier exhaust noise, slight gains in both midrange torque and top end hp

Stage 3

As per Stage 1 and 2 but with the addition of either high flow catalytic convertors or de-cats
350 DE and Rev Up

Running HFC or decats you can expect  an increase of 20hp over the stock car with a increase in mid-range torque. The exhaust noise is slightly increased with a rasp at around 4000rpm