1.5 bar is within the stock limits of the 86-88 1/2 5kt/q computer parameters..... to get above that, you will need ECU mods not just WG mods...... You can get 1.5 without running the expensive gas easier tho...... Scott PDQSHIP@aol.com '87 5ktqRS2 2.2bar @93octane "87 5ktq stock 1.5 bar @3000 @ 93octane