Launched in 2002, Sumo Power is one of the UK's biggest names in performance parts, supplying high quality aftermarket solutions for the majority of Japanese cars. 

With our extensive range of quality brands as well as contacts in the best tuning companies around the globe, you'll always be in safe hands with Sumo Power. Our excellent sales staff and customer service aims to cater for all your tuning needs through our unrivalled mail order service.

All of the brands we deal with are available on our 'Tuning Parts' page. And if for some reason you cannot find exactly what you want, remember to give our team a call or contact us through our website for more help.

Sumo Power Limited is a limited company registered in England and Wales, Registered Number: 08887906 Registered Address: Unit 1 Faraday Business Park, Littleport, Ely, Cambridgeshire, CB6 1PE

Silent Hi-Power mufflers offer high performance and sporty appearance with the added benefit of reduced noise levels making it the best choice for more mature enthusiasts. Silent Hi-Power mufflers are constructed entirely of SUS304 grade stainless steel for high luster, long lasting performance. For certain applications, HKS has introduced the "Silent Chamber" which removes a lot of the lower frequency noise that can often be heard into the cabin even when cruising. The silent chamber removes this uncomfortable noise but due to its closed end design, only a minimal amount of exhaust gas flows into it, meaning that the disruption to exhaust gas flow through the entire system is minimized and there is no harm to performance.

 

Silent chamber for some vehicles.

Straight structure has a characteristic that is easy to eliminate high frequency sound. However, it is difficult to control low frequency uncomfortable sound that can be heard in the cabin. Silent chamber can reduce this low sound.

In addition, because of the closed inside structure, exhaust gas does not through inside silent chamber and exhaust gas resistance is less. Therefore, there is no performance difference even silent chamber is equipped.

"JASMA" approved.

The material is SUS304 for improvement of appearance and durability.

Proven "Advantex* glass wool" (Continuous fiber glass wool).

75mm Pipework

Hollow hook and pressed flange for some vehicles to reduce weight.

Redesigned inner structure of silencer to improve performance and appearance.

* Advantex is a registered trademark of Owens Corning.

 

Section figure of TYPE-S

As shown above, taper portion of the inner pipe is set at front so that the rear end of the inner pipe cannot be seen from the rear. With noise elimination performance, it improves appearance. Since the diameter of inner pipe is larger (excluding some vehicles.), performance of the exhaust system is improved.