Cold Air Intake & exhaust

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#11

09-05-2011, 09:29 AM

Mr_Shamrock

Chevrolet/GMC, Racing, Recreational Forum Moderator

Join Date: Apr 2009

Posts: 2,267

Quote:

Originally Posted by greatlakes

I feel CAI & cat back exhausts, are over rated. I bought a used F250 5.4 with k&n CAI and Flowmaster cat back allready installed, The tone the truck put out when pulling in tow mode was unbearable, (maybe I'm getting old ?) so I switched the intake back to stock, (with k&n filter). I notice no change in performance, and I am now looking for exhaust options.

Try the Magnaflow's. I have always been a Flowmaster fan but after hearing the difference I won't go back. Maybe I am getting old too, but that resonance in the cab on a long trip gets old fast. The 92 truck I have now had a flowmaster on it when I bought it and it's hard to put money in something that has already been upgraded, but it will be getting replaced soon.

#12

03-13-2012, 01:53 PM

d hill

Beginner

Join Date: Mar 2012

Posts: 1

you folks think a magnaflow catback system with a hi-flow cat will sound good and increase power and gas mileage on a 5.7 hemi?

#13

03-14-2012, 11:55 PM

JoeYukon79

Beginner

Join Date: Mar 2012

Posts: 2

Spectra makes a cai that runs about $159. Check out amazon.com. I purchased mine at A local parts store for my 01 yukon 5.3. And contrary to what others have posted I've noticed a immediate difference in acceleration ,mpg and even added a little rumble to my stock exhaust. Very easy bolt on took about an hour.