Check out this thread:lukeinva said:Well it appears magnaflow is coming out with a cat back for the caliber I dont know when but I was just on thier site and it says its coming soon so hopefully it will be here in nov/dec!
Huff said:Can anyone post some pre/post dyno results after adding a cat-back? It has been my experience with other vehicles that a cat-back may improve HP/Torque at highway rpm's but reduce torque at lower rpm's. Has anyone made a 50-state approved header for the Caliber?
How about mpg improvements?
By the way just to let you know I had a 89 Mustang GT and I had to get emmisions done on it, the car had no cats what so ever, just shells to look like it did and passed with flying colorsHuff said:I would seriously doubt any cat-back setup will add any appreciable performance to our Calibers in the typical RPM range driven. It's only purpose is better sound. Todays factory exhausts are not nearly as restrictive as those of 15-20 years ago or so. The main difference back then was putting on a free-flowing cat converter AND headers. You can't change the cat in most states without violating emissions laws...not unless the cat fails.
theyre notorious for undershooting their numbers. ive got an awd dyno here locally that hooks me up pretty good.. if i get around to it ill do a couple runs this week and see what my car dynos at.... just wish i had some numbers before i did mods.RadrussRT said:
Bolt on this CAD designed and dyno tested Mopar performance tubular exhaust header to feel and hear the difference. Manufactured with heavy gauge powder coated tubing, this performance header features true mandrel bends and CNC machined fl anges for a factory-like fit. Install with the Cat-Back Exhaust System (P5153564) and Cold Air Intake System (P5153572) for an over 10 hp gain (measured at front wheels).P5153566Caliber Tubular Exhaust Headers 296.40
Considering a resonator is nothing more than a straight through tube...Darren07RT said:lmao... ya, because all the resonators that are put on todays cars arent restrictive at all....lol