Their engineers design intake systems as fully integrated component of the vehicle. They aim to create the highest horse power throughout the engine rpm range that will enhance and deliver that "joker smile" driving experience every driver deserves. All of products are designed and built in-house.
GruppeM products are put through rigerous testing and validation such as air flow testing using a SuperFlow SF600 flow bench, MAF voltage and more to deliver the power gains and performance you can feel.
Don't be fooled by many aftermarket power gains touting artifically high numbers and using terms like "up to". GruppeM intakes are designed and developed to deliver real power gains you can feel and intake systems improve power and performance in the RPM ranges you will actually use when driving, rather than in the high RPM you will rarely use.
Official site: www.gruppem.co.jp
We are fast
We have own warehouse with most of products in stock.