NEW STEP BY STEP MAP FOR SQ7 DOWNPIPE

We have examined these Audi RSQ8 Downpipes and found boosts of all around 40-45bhp without having tuning and 140bhp+ on the tuned car. Professional set up is recommended as some exhausts sit slightly unique from Other people and may be restricted.It then safely and securely optimizes the ignition spark advance, air to fuel ratios and transmission s