Originally Posted by smashwebs

The Stillen is still pretty loud, but you can drive it and not even hear it if you want to. That's important to me for highway trips. It makes the same power as the FI, and has looks great too.

The tips will stick out too much if you install it wrong, but the tips absolutely do not stick out otherwise. I installed it properly the first time and without ANY experience doing any kind of car maintenance/modding.