Definitely my Saturn Ion Redline sounds fantastic. The blower is much louder and the air filter is of much better quality. The filter is relocated in the wheel arch on the driver's side, in the air intake (colder) and not under the hood (warmer); it makes a lot more sense in terms of thermals/compression. The instructions that came with it were great. I don't know if I noticed an increase in performance or not; It could all be in my head. I don't have a chance to test it either.
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