Description
We are now making out TRX 390 J exhaust system available to everyone. This pipe has previously only been available with a LED engine package. This pipe is a breakthrough design with dramatic power increases from 3000 to 8300 RPM. For example, The J pipe makes 1 – 2 hp more than the G pipe from 5500 rpm to 6500 rpm. At 7000 rpm it is 2.5 hp stronger, at 7500 rpm it is 3.9 hp stronger and at 8000 rpm 2 hp stronger. This means better roll-on power, more mid-range power, more peak power and better power after the peak. This pipe not only makes more hp but has a clear gain in acceleration. All of our test riders report a noticeable increase in seat of the pants performance, when compared to the 350 G. The TRX 390 J pipe works with 350 to 390 cc engines. Big Bore muffler is needed and is sold separately.
