D-LuxZ24 wrote:I'm about to get a 25" dynomax thrush magnum glasspack with the 2.25" in/out installed on my '97 2.4L and was wondering if it will in any way hurt my performance. I'm also getting a pacesetter ceramic coated header installed with a high flow cat and 2.25" custom piping all the way back to a magnaflow muffler. The only reason why I'm asking is because I hear this muffler goes down to 2" on the inside and it seems like that might hurt the overall flow of the system. But, if it doesn't hurt performance I'm just going to have it put on. Any feedback would be appreciated because I'm getting everything installed soon.I have the exact glasspack you're referring to, the 25" overall w/ 2.25" in/out on my 99 2.4L. It didn't do a damn thing to hurt performance. You'll be fine, and you'll be glad you got it.