Sorry, another LM question
Yeah, I think it sounds best with LT's with CATS... My rasp went totally away. I ended up selling mine because my car is lowered and they hung too low and I would hit them going over a dime (exagerating).
I had SLP LT's and SLP ORY and SLP LM - I drove the car 0.4mi before I thought it was the worst exhaust ever! Now having said that, I tried my stock catback - too quiet, BUT STILL HAD RASP. I now have a Magnaflow catback and the car sounds great, BUT STILL HAVE RASP. No matter what you do, you are going to get rasp without cats. I like my LM when it was my ONLY MOD. Only reason I went with a full style muffler cat back, was for interior drone. The Magnaflow cured all interior noise and still SCREAMS at WOT! My $0.02

Don't want rasp? Keep some damn CATS on the car!
Or you'll have to run a true dual set-up which actually does not rasp without cats becaus of the "X-pipe" set-up. But true duals are not for everyone either...Mike
Illinois emissions are a breeze as long as your SES light does not come on your find...just get your 02 front 02 sensors in and get rear 02 simulators youll pass no problem...see if ls1speed in schaumburg can do an install unless oyu kno somewhere else
we do the OBDII scan for codes





