What a B-U-Tiful day for a Dyno!!
10-25-2008, 09:36 PM
#121
just got precat deletes installed today and wow! car pulls crazy. its totally different animal.
but the smell... used to love that smell during childhood but now it just gives me a headache. currently i have the atlp racepipe, so will swap back on the oem 3rd cat and order the highflow version pretty soon.
btw.. does precat delete makes header hissing sound? or is this an exhaust leak?
but the smell... used to love that smell during childhood but now it just gives me a headache. currently i have the atlp racepipe, so will swap back on the oem 3rd cat and order the highflow version pretty soon.
btw.. does precat delete makes header hissing sound? or is this an exhaust leak?
10-25-2008, 10:49 PM
#124
I dont get a "hissing" sound, but like many others.. i have the "cold rattle"
basically, on cold starts you hear a rattle... and the first time you really give it some throttle it rattles... after that, never again, until it gets cold.....
i believe its the heat sheild on the drive shaft.... i dont mind it too much.. not worth removing it IMO..
but minkl81, isnt that difference unbelievale? the amount of power you gain for a $250 part..... its outrageous....
basically, on cold starts you hear a rattle... and the first time you really give it some throttle it rattles... after that, never again, until it gets cold.....
i believe its the heat sheild on the drive shaft.... i dont mind it too much.. not worth removing it IMO..
but minkl81, isnt that difference unbelievale? the amount of power you gain for a $250 part..... its outrageous....
10-26-2008, 02:55 AM
#126
expect to pay around $200.. maybe less... its a good amount of work...the front cat can be replaced your self , if you've got the right tools.. i mean, hell, so can the rear cat...
its one of those jobs, that sometimes spending the money is worth saving the time... i coulda done it myself, but it probably would have taken me like 8-10 hours in my driveway with a jack and socket wrench
i think i paid like $150 for the install from my mechanic... fair price, took him like 3 - 4 hours to do
its one of those jobs, that sometimes spending the money is worth saving the time... i coulda done it myself, but it probably would have taken me like 8-10 hours in my driveway with a jack and socket wrench
i think i paid like $150 for the install from my mechanic... fair price, took him like 3 - 4 hours to do
10-26-2008, 11:54 AM
#127
i paid only $75 and took around 3 hours to finish. cant complain.
i only hear the hiss or rumble sound when the tech hits over 5k rpm. also i saw the heatshield on the driveshaft when the car was on the lift and thought it could rattle with very little gap of clearance. but thankfully no rattles yet.
other than that, this is great power mod for its value
i only hear the hiss or rumble sound when the tech hits over 5k rpm. also i saw the heatshield on the driveshaft when the car was on the lift and thought it could rattle with very little gap of clearance. but thankfully no rattles yet.
other than that, this is great power mod for its value
10-30-2008, 03:58 PM
#128
checked with two different exhaust mechanics for a exhaust leak. no leak found. they say one of the cause might be the increased inflow/outflow restricted by stock exhaust system.
that air whooshing sound is no leak but a detonation sound in the header (precat deletes) that happens before the cats. when header gets hot, it detonates unburnt gas in the exhaust fumes once more before it gets filtered out by cats, thus creating that air leaking sound.
that air whooshing sound is no leak but a detonation sound in the header (precat deletes) that happens before the cats. when header gets hot, it detonates unburnt gas in the exhaust fumes once more before it gets filtered out by cats, thus creating that air leaking sound.
10-30-2008, 04:10 PM
#129
Team Owner
checked with two different exhaust mechanics for a exhaust leak. no leak found. they say one of the cause might be the increased inflow/outflow restricted by stock exhaust system.
that air whooshing sound is no leak but a detonation sound in the header (precat deletes) that happens before the cats. when header gets hot, it detonates unburnt gas in the exhaust fumes once more before it gets filtered out by cats, thus creating that air leaking sound.
that air whooshing sound is no leak but a detonation sound in the header (precat deletes) that happens before the cats. when header gets hot, it detonates unburnt gas in the exhaust fumes once more before it gets filtered out by cats, thus creating that air leaking sound.
10-31-2008, 08:38 AM
#134
just got precat deletes installed today and wow! car pulls crazy. its totally different animal.
but the smell... used to love that smell during childhood but now it just gives me a headache. currently i have the atlp racepipe, so will swap back on the oem 3rd cat and order the highflow version pretty soon.
btw.. does precat delete makes header hissing sound? or is this an exhaust leak?
but the smell... used to love that smell during childhood but now it just gives me a headache. currently i have the atlp racepipe, so will swap back on the oem 3rd cat and order the highflow version pretty soon.
btw.. does precat delete makes header hissing sound? or is this an exhaust leak?
Does the smell go away with time???
11-03-2008, 09:00 AM
#136
Banned
11-03-2008, 01:48 PM
#142
9.5+10.5 22m=Hella Flush
11-03-2008, 03:13 PM
#143
Banned
11-03-2008, 05:15 PM
#144
94 DC4 RS LSV/Turbo
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^ I'd race the 335i too shit, I am pretty sure I'd stay within reach, allon's got his stock third cat in, which is robbing anywhere from 5-10hp...
11-04-2008, 08:48 AM
#145
Banned
11-07-2008, 03:16 PM
#148
lol... i got my ass HANDED to me by a 33ii coupe on the LIE today... i think it was chipped... had to have been.. never seen a freaking 3 series move like that... and i know how to drive... ive kept up with E46 M3's.... but this thing just embarassed me like i was standing still
11-08-2008, 10:26 AM
#151
Banned
Lets meet up Sunday Nov. 9th Which is Actually Tomorrow. If no 1 have a problem with tomorrow. Maybe at 9PM? when ever the highways is open to do couple of rolls?
11-08-2008, 10:29 AM
#152
Banned
lol... i got my ass HANDED to me by a 33ii coupe on the LIE today... i think it was chipped... had to have been.. never seen a freaking 3 series move like that... and i know how to drive... ive kept up with E46 M3's.... but this thing just embarassed me like i was standing still
11-09-2008, 12:01 PM
#156
Banned
11-09-2008, 12:18 PM
#157
Yeah, that must be the JuiceBox or Vishnu Procede, one of those chips. But the drawback is you can really mess up the engine, the 6th cylinder starts to missfire and the you blow the piston and eventually change the engine which costs $25000 installed at Stealership. Thats is 1 BIG reason im Leaning towards buying the EVOX and not the 335i.
11-09-2008, 03:07 PM
#158
Banned
