Yeah, I used the one I posted on ebay and just got a reducer at the auto parts store. Welded it all together, worked great.

 

Yup, my shop used the 94009, rather than the 94109. But as previously stated, the only difference is the 94109 is about 3" shorter. Either will work fine.

 

Used the short one and the reducer. Works good. This weekend im changing my o2 sensors.

 

welll just ordered it today, cant wait to get it on, im hoping it will make my truck louder and more aggresive.

 

what i was trying to say is that, your cat is (si-so) single in-single out, just like a pipe, so you could take off your cat and just put a pipe in place of the cat, but if you had emission testing you could gut your cat to make it look like you had a functional working cat. the test pipe or guttin the cat would make you truck louder , thats what i was trying to say...good luck with the new high flow cat...tell us how it goes

 

My highflow experience which I had put in a month ago, but only drove the truck for a few days is as follows. After the guy started up the truck in the shop after the cat was installed, I was kinda dissapointed. He backed it out and it still sounded like normal. Well I got in it and maybe noticed a slight pitch difference and was like... wtf. Well I pulled out of the shop and let her rip. All I have to say is WOW. It sounds like I just flipped a cut-out switch. For me she opens up at higher rpm's and is normal sound at regular and cruising. As soon as you punch her, you know shes there. Thats fine with me.

 

Yeah, it'll be louder with the magnaflow. In fact, I had no cat on there and was trying to get closer to stock cat noise levels when I installed mine. Needless to say I was somewhat disappointed. Noise level with the magnaflow is closer to no cat than it is to factory cat.

 

sweet just what i want to hear