c18xe tuning thread

The definitive C18XE tuning thread OK folks, just thought I'd start a thread to cover the C18XE and tuning it. C18XE engine or 1.8 Ecotec found in 1.8 GSi's and 1.8 Cesaro's Documented to have 125BHP Rolling Road results of owners would suggest this is just a low estimate. Known to push...