I went by PSI Motor Sports today and they told me that full headers with high flow cats will only give me about 12 rwh. Is anyone running these and what have u see on the dyno?
The cats may hold up a little horsepower, but not that much. We typically see between 20-25 rwhp with this setup on a N/A car.
Maybe the shop meant 12HP without a tune.
You won't be dissapointed, we've done very well with them,
The sound is great as well!
Beef, which mufflers do you have, retro, or turbo muffler?
Depend on the shop I've heard as high as 700. I did the install myself it was pretty easy. A little intimidating at first but after you get into it it's a piece of cake.whats the price to install a set of LTs? Expensive mod....