nope, a IC will be beneficial to a otherwise completely stock car. The CAT just rise and rise killing power. a IC will keep it in check.thought you needed a tune to take advantage of a bigger IC
Basically if you didn't notice already, with the stock IC your first pull is ALWAYS the strongest because the IC gets heatsoaked. With an aftermarket IC every pull will be like your first pull on a stock IC. Probably even better because of better flow and less pressure loss etc. Its not really making your car faster, but it makes it more consistent.I see...and I assume I will feel this loss of power more in the summer? Sorry, first turbo car for me.