luckymckay21

Anyone out there with similar mods as me notice a difference after they switched to a catback? I have the 40 series flowmasters welded in and it sounds good, but my track times are almost a second off of what they should be. Im wondering if its because my exhaust is getting bottled up in the stock catback and flowmaster mufflers. I dynoed at 290rwhp and the best track time i could get was a 14.1!!!! Any suggestions as to what could be causing the bad times would be great! Thanks.

white04gt

It's a good possibility, your engine needs to be able to breath and exhale... Looks like it's breathing fine... But definately not exhaling properly. Between your midpipe and weld in's it's very restricted. You will probrably notice a big difference with a new midpipe and catback as you will go from a 2 1/4 inch to a 2 1/2 inch exhaust all the way back from the manifold.

rbstang

u need control arms to help lower your 60.

luckymckay21

Do you think that is what the problem is? Cuz my best 60ft is 2.19 (not good, but not horrible for street tires). I can't figure out what the deal is. I catch 2nd and 3rd gear perfect and i still get horrible times. I hope it is the suspension or else i have a 290rwhp 14 second car. Sh*t!!!