|
Larger doesn't necessarily mean better though. I've seen 540/740 stock mufflers cut in half and gutted, and I'm surprised how restrictive they are. The 4.8's could be more restrictive for off the line grunt due to the fact that they are larger and maybe have more chanmbers, so maybe 4.6 mufflers are better for midrange/hi-end power since they're smaller and potentially have less chambers....just guessing here. That's all i'm trying to figure out.
__________________
650hp 10 X5///M - Stage 2, Vibrant 1794's , gutted cats, custom intake, AC Forged 22's 325hp 98 BMW 740iL - ///M5 6spd, www.bavengine.com w/ Performance Option, electric fan, CF intake tube w/ heatshield, Mag 14816 w/ notched bumper, Bilstein/H&R Stage II/Powerflex 600+hp 02 Harley F150 - MHP900 Stage 3 engine, KB2.3, 8# lower, 60# inj, Walbro FP's
135hp 01 TL1000R - M4 full exhaust, K&N, Yosh box, -1/+2 gears, 2CT's
|