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First set of resonated OAPs installed on a 4RS. In-person the sound is increased, but not massively so, the cabin is still dominated by intake noise. Drone is all but non-existent, with the 4RS gearing you must lug the engine in 7th gear around 2200rpm to introduce any droning at all.
Resonated pipes saved about 5kg (about 11 lbs) off the heavy end of the car.
Valvetronic has a set up as well. Seems to sound pretty good but I haven’t seen any dynos.
I believe I have production system #1 (aside their development car) that should be landing tomorrow. I can update with thoughts and sound clips if anyone is interested
I believe I have production system #1 (aside their development car) that should be landing tomorrow. I can update with thoughts and sound clips if anyone is interested