Whats does EC approval or EC homologated mean?

EC or ECE approval what does this mean?
Very simple; ALL REMUS exhaust systems with EC/ECE certification are 100% street legal in EU, we already obtained your homologation! 100 % safe and legal!

This ensures that a model of a vehicle meets all EU safety, environmental and conformity of production requirements before authorising it to be placed on the EU and international market and describes the process applied by national authorities to certify that. 

Race Exhaust Products No EC approval
The use of the word RACE and racing exhaust products, which do not have EC/ECE approval, are generally not permitted on public roads in EU (check regulations in your local country). Products manufactured by REMUS without (ECE-) approval are only eligible for usage at motor sport or test events within the meaning of KFG 1967. They are not intended for vehicles used on public roads in EU.

Do I need to get a separate type approval once I have a REMUS exhaust system on my vehicle? It depends on whether you have a REMUS sport exhaust system with European type approval or a racing sport exhaust system. If you have purchased a REMUS sport exhaust system with European type approval, you can download a type approval brochure, which matches the number on your sport exhaust system. The number on the type approval brochure also corresponds with the vehicle identification number in your papers.