I can notice the difference, with my extractors, defiantly smoother, power increase isn't huge, but the improved low/mid torque is a bit notice able.
Sure, not earth moving, but a subtle change, not bad for $100, I think. They give a nice niose, give the lil 4 pot a bit more balls.
All up, a straight through 2" with hot dog, and straight through muffler, + extractors, for under $450..? Sure it may only be 10 horse on the dyno, but driving, you can feel, and hear the difference. Good value IMO
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