I recently purchased an 05 ls430 and it's a bit too quiet. I plan on doing a muffler swap with exhaust clamps. Before ordering the 2.25 masterflow mufflers I had in mind I was looking at the undercarriage of the ls and I am not sure how I would go about cutting it and installing the mufflers since the exhaust seems curvy when transitioning towards the muffler. I am very new to this stuff, so any feedback would be great.

 

You're in the IS Build Threads, let me get you over to the LS 430 forums.

 

unless you have a welder and pipe bender, i wouldn't recommend just buying a muffler and cutting things up trying to make it work.