Originally Posted by Rugs
$250.00 including shipping / C.F. Hamann Style Diffuser by cyba:http://www.e90post.com/forums/showthread.php?t=108172
$109.95 for Assured Automotive's 4x76mm Staggered, Slanted & Beveled Double Wall Quad Tips: http://assureda.startlogic.com/ACDDW2251D2TIP.html
Install & Labor @ "Mighty-Muffler" 2+ .
$514.85 Total Installed...or $374.85 before install
which isn't bad considering: Eisenmann axle back 4x76mm Quads are $1,998.00. Bastuck axle back 4x76mm Quads are $1,675.00 and ilia Industry quoted me $500.00 for just the Eisenmann Quad Tips!
that's a good mod, but complicated as far as install and mod. you really lucked out, the price and the work that your muffler shop did is to be commended.