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.

"Kneel before ZOD!!!"
yup, you better get it outta there, man its probably taking OFF about 10hp!!!!!
I HIGHLY doubt it, dynomax is one of the best companies out there for exhaust systems, much better than magnacrap imo...
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** Flat Broke Racing Inc.**
I don't think it will rob you of anything more than a fraction of 1hp, if anything. Its just a straight tube that is preforated along the inner wall.
I don't see it making any difference but you can always call a professional exhaust shop and they will know best. No midas or nothing like that i mean like Exhaust pro's, mighty muffler, etc...
I'd be most worried about that Magnaflow muffler... if it does go down to 2" internal I'd ditch that... the Glasspack should have no effect as long as it is a 2.25" core...

Knowledge about everything and yet an expert of nothing!!
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