View Full Version : Anyone ever used stock e34 M5 exhaust?
Cacatfish
03-27-2004, 02:20 PM
Would this fit onto the m50 525i with no problem? (from the cat-back of course). Is the performance on par with other performance exhausts? I am thinking of swapping from my Supersprint to M5 because I will be having a 2 hour commute and want the quiet-ride. However, I dont want to lose much HP. Are the pipe dimensions as large on the M5 unit. I have about 385hp now, would I be shooting myself in the foot by swapping?
Thanks, Colin
TheGeak
03-27-2004, 06:12 PM
385hp? what did you do to that M50?!?!
Julius
03-27-2004, 09:17 PM
385hp? what did you do to that M50?!?!
haha yes what did u do!
BennyM
03-27-2004, 11:08 PM
135 extra horsepower doesn't come easy from a 2.5litre.
winfred
03-28-2004, 12:27 AM
if i can put a e32 750il catback with 2 1/2" pipes on my 90 535, you can put a m5 on a 525. i welded the flanges from the 535 resonator on the front of the 750 resonator after i shortened it about a foot (that's where they made the extra length between the e34/e32i/e32il, from the resonator back it's aprox the same size)
http://members.cox.net/wdixon27/750%20high%20tips
http://members.cox.net/wdixon27/750%20low%20tips
http://members.cox.net/wdixon27/750catback1
http://members.cox.net/wdixon27/750catback2
Cacatfish
03-28-2004, 12:35 AM
Thanks Winfred, that's helpful...the 385hp is from an s52 (3.2) with a Vortech blower and Schrick cams. I mentioned m50 as the block dimensions are all the same between the s52 and m50. The motor makes 320hp at the wheels. With 17% driveline loss, it is about 387hp at the crank.
I agree that 385 would be pushing a 2.5 very hard, though with enough boost, I guess.......
Jon K
03-28-2004, 04:23 PM
Thanks Winfred, that's helpful...the 385hp is from an s52 (3.2) with a Vortech blower and Schrick cams. I mentioned m50 as the block dimensions are all the same between the s52 and m50. The motor makes 320hp at the wheels. With 17% driveline loss, it is about 387hp at the crank.
I agree that 385 would be pushing a 2.5 very hard, though with enough boost, I guess.......
Fear me jason
Cacatfish
03-28-2004, 06:25 PM
What means this? A movie line??
Jon K
03-28-2004, 07:33 PM
What means this? A movie line??
No, just letting TheGeak know there's potential for my car :)
Cacatfish
03-28-2004, 08:33 PM
Winfred, so you have stock cat then 535i resonator, then e32 resonator, then e32 rear muffler? That must be pretty quiet! You shortened the pipes in front of the e32 resonator then?
Thanks, Colin
winfred
03-28-2004, 08:41 PM
yep yep yep and yep, nice deep tone and yep
Winfred, so you have stock cat then 535i resonator, then e32 resonator, then e32 rear muffler? That must be pretty quiet! You shortened the pipes in front of the e32 resonator then?
Thanks, Colin
Cacatfish
03-28-2004, 08:50 PM
Thanks!
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