DrGP

Guy on BMW forum believes that he is getting 8-12 HP increase. Actually he thinks he is getting 16-24 Hp increase because he has put on 2! Also commented that the quality was good!

http://www.e90post.com/forums/showthread.php?t=131970<ul><li><a href="http://cgi.ebay.com/ebaymotors/DUAL-EXHAUST-MUFFLER-BMW-E32-E34-E36-E46-E39-325I-M3-M5_W0QQcmdZViewItemQQcategoryZ33630QQihZ018QQitemZ 280214297880QQrdZ1QQsspagenameZWDVW">Quad exhaust on EBay</a></li></ul>

Dacowieson

So we should get four each.

bd s4

looks powerful, and very attractive to, looks like a win win for a winner

Corrado79

BMW owners FTL

ozo101

A set of MB wheelz, and he`d be up, close to 35 extra Hp, not bad! the smartest people drive bmw

tadhgbrosnan

The poster, E90CNote, is obviously busting ***** here. NO WAY he is serious

bpp

Nice car, but I was totally underwhelmed by any lack of personality about the car. Maybe it was 'too nice', closer to a Lexus type than a German kick-*** performance sedan.

DrGP

Car and Driver is always GOO GOO over it. I think if you add a $600 Turbo Tuner piggyback chip you might feel different. BTW, I saw a Black M3 sedan on Airport road on Sat. Had aftermarket black wheels with polished rim. I was underwhelmed

bpp

The 'piggyback chip' may help, maybe. Nice styling too, but...lubs my S4. )

DrGP

I understand why.