The heart of our Racing Beat Power Pulse muffler is our polished 304-stainless steel canister. The inlet and outlet tubes also feature mandrel-bent 304-stainless steel for excellent durability and appearance. For maximum performance potential, our silencer features a 2.375" OD Straight-Flow internal design configuration . Finished with a 3.5" OD polished 304-stainless steel tip, this large diameter muffler will handle applications from stock to race.

Designed and manufactured entirely by Racing Beat, this muffler features stainless steel wool and ceramic sound-deadening packing insulation to provide the optimum exhaust note for your MX-5. The Power Pulse Silencer offers a deep, throaty exhaust note without any harsh, buzzy or droning tones. All Racing Beat exhaust systems are tuned in-house by our engineering staff to produce a modest exhaust tone at low speeds, and a bit more "attitude" under full throttle acceleration. All this and its still quiet enough not to annoy you or your neighbours on low revs. 

On an otherwise stock 1.8 MX-5 (baseline hp - 110.6) our dyno tests have shown a 2.4 hp gain (max hp - 113.0) with the addition of this muffler. Combine this muffler with a Racing Beat air intake for gains of up to 8.5 hp! Don't be swayed by exaggerated performance claims made by other aftermarket suppliers - big HP gains from an aftermarket rear muffler simply don't exist. If they did, why would Mazda leave this untapped horsepower behind???

Performance:-
As reviewed in the November 1999 issue of Import Tuner, this Power Pulse exhaust system (muffler and connecting pipe) added 3.2 horsepower to the wheels of a 1990 MX-5. Combine this exhaust with a Racing Beat High Flow Air Intake for gains of up to 9 hp!

Easy-to-install, this system can be bolted to the car in minutes using the supplied hardware kit.