Exhaust pipes and fitting
Blowing exhaust? Exhaust leak signs, MOT rules and fixes
Is a blowing exhaust an MOT failure? The MOT rules on leaks, fumes and noise, the warning signs, and how to find and fix an exhaust leak properly.
Exhaust pipes and fitting
Practical articles on catalytic converters, DPFs and GPFs, emissions tests and choosing the right part for your vehicle.
Looking for the basics? Our Help & Advice guides cover how catalytic converters and DPFs work, fitting, the law and warranty.