Saw this last night, looks interesting. Anybody try it? Claims up to 20 hp increase.
I-M Shield
https://www.google.com/url?sa=t&rct...140004&usg=AFQjCNFRfRoe-B5wEeDpgfso0J5dNkokUQ
Heatshield Products I-M Shield Install and Dyno Test: More Horsepower for Less
I-M Shield
https://www.google.com/url?sa=t&rct...140004&usg=AFQjCNFRfRoe-B5wEeDpgfso0J5dNkokUQ
Heatshield Products I-M Shield Install and Dyno Test: More Horsepower for Less