Member, P500 Sport, MDM on (>800)
Join Date: Nov 2005
Location: San Diego, CA
Thanked 2 Times in 1 Post
As I recall, member ttm6 (an M6 driver) did some custom piping to replace the cats and resonator sections. Don't know about any one doing mufflers.
By the way, I wouldn't expect much, if any, power gains just from swapping the mufflers.
2012 Cayman R Guards Red
2001 E39 M5 TiAg - Current Daily Driver
1997 Boxster Guards Red, Spec Boxster Build in Progress
2000 E46 330i Sedan - Track Car, with complete E46 M3 Drivetrain (For Rent)
1987 E30 325is - Spec E30 Race Car, SoCal NASA #3 (For Rent)
1992 E36 325is - Former Grand AM car, now with Sunbelt S50B32 (For Rent)
1995 E36 M3 Hellrot - NASA GTS3 Race Car - In Progress
1995 E36 M3 Silver/Black - Track Prep, Euro S50B32 being rebuilt!
2009 E90 335is Monaco Blue - 6Speed - Sold 4/2011
2008 E90 M3 Carbon Black - Sold 5/2011
2006 E86 Z4M Coupe SilverGray/Black - Sold 1/2008
2006 E60 M5 SilverStoneII/SilverStone - Sold 6/2007
2001 E46 M3 Jet Black/Black - Sold 11/2005