I've alfa romeo mito tb 120hp and I've 2 issues: 1)Will I get some hp boost and sound? two) will the check engine light-weight open up If I place aftermarket downpipe? I feel if I modify it my vehicle is going to be decat ideal? This locks the snake set https://elliottyeim29518.hyperionwiki.com/670605/unlocking_performance_downpipe_upgrades_for_bmw_m_series_models