which HMF do you own? they have 5 different pipes for the LTR. I agree, the HMF sound is a signiture sound and has been for 15+ years. The Performance series is unrestricted and hella loud. I have a bill ballance pipe with custom core. Love it!I own a DASA and an HMF and the DASA is definitely louder. IMHO the HMF sounds better though. The exit out of the exhaust is bigger and the whole exhaust tubing is much larger then the HMF. It kinda weird that is it that way since the actual muffler on the DASA is larger.