Zzperformance catless downpipe
 

Just installed the downpipe, not a hard job. Definately opens her up and makes a little more noise. No cel yet. It seems to rev up better. Haven't went for a spin yet with the TRIFECTA tune on. But I think I'll like it. Ready to install the camshafts next, and get retuned. Then it'll be ready for some drag racing. Bought a set of BF GOODRICH drag radials in a 17". Hopefully they will grab good enough. The street tires don't even stand a chance, they spin through second gear. (5 speed)

If you haven'talready done it... Turn off the P0420 code from coming on through your Trifecta tune.

Haven't done it yet. Didn't know I could. I'll have to look at my program. Is this a standard option on the Trifecta tune?

Thanks for the information on the cels. I hadn't even looked at what all was on the program. Thats why we have these forums, for information sharing. Theres a wealth of information out there. Thanks for sharing your knowledge.

17" slicks work ok but what you really want is 15" slicks. They will gab wayyyyyyy better than 17"

Ya it will spool quicker and in turn rev quicker. ZZP has the defouler which will most likely prevent any CEL anyway. Only reason I went with a catted DP is because without it and with the 3" MF catback the car was just too loud, and Ive gotta say I'm super happy I did it because the car already rattles a lot with the billet ZZP mount and catback.