|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Search | Today's Posts | Mark Forums Read |
|
BMW 3-Series (E90 E92) Forum
>
Vanguard + Secondary Cats
|
|
07-25-2011, 02:32 PM | #1 |
Banned
116
Rep 4,771
Posts |
Vanguard + Secondary Cats
Hey guys, figured I'd post this up just in case you guys could help me out a little.
This question is about Vanguard in particular, but applies to all catless exhausts. I am thinking about buying a Vanguard exhaust to be paired with my catless downpipes. Now I'm not worried about sound, but rather with smell. I have a buddy who added secondary cats to his catless exhaust and it didn't affect sound at all but got rid of the terrible smell completely. That is my goal too. So I was hoping to get some recommendations on what cats to go with and where to fit them on the vanguard exhaust so that they don't cause a rattle or any fitment problems. Stole Frankie's panorama picture to show what it looks like installed. Where could we fit some cats without issues? |
09-15-2011, 01:44 AM | #2 |
Major General
285
Rep 5,063
Posts
Drives: Black e92 335i
Join Date: Apr 2010
Location: Brampton, Ontario
|
Bump, I'm interested in this as well!
__________________
JB4 / OSS Angel Eyes / Downpipes / F1-Racewerks FMIC / Custom Meth Kit / BMS DCI / ER Chargepipe / HKS BOV / BMS Meth Elbow / BMW Performance Exhaust / Carbon Fiber Inlay Quad Tips / 19" Miro 111 / Front Aero Lip / M3 Sides / VRS CSL Trunk / Mtech Rear / DD CF Quad Finned Diffuser / LCI Tails / BBK / Smoked Reflectors / F1 Euphoria LED Interior / License LED's / GT 5000k Corners / 5000k HID Fogs / Air Scoops / LED Turn Signals / FK Silverline Coilovers / HPA endlinks / Vibrant Resonators / Osram CBI 5000k D1S
|
Appreciate
0
|
09-15-2011, 07:12 AM | #5 | |
Major General
285
Rep 5,063
Posts
Drives: Black e92 335i
Join Date: Apr 2010
Location: Brampton, Ontario
|
Quote:
This would most likely introduce some rasp would it not?
__________________
JB4 / OSS Angel Eyes / Downpipes / F1-Racewerks FMIC / Custom Meth Kit / BMS DCI / ER Chargepipe / HKS BOV / BMS Meth Elbow / BMW Performance Exhaust / Carbon Fiber Inlay Quad Tips / 19" Miro 111 / Front Aero Lip / M3 Sides / VRS CSL Trunk / Mtech Rear / DD CF Quad Finned Diffuser / LCI Tails / BBK / Smoked Reflectors / F1 Euphoria LED Interior / License LED's / GT 5000k Corners / 5000k HID Fogs / Air Scoops / LED Turn Signals / FK Silverline Coilovers / HPA endlinks / Vibrant Resonators / Osram CBI 5000k D1S
|
|
Appreciate
0
|
09-15-2011, 08:45 AM | #6 |
Banned
48
Rep 828
Posts |
Nope ,you should keep the stock rear resonator since its straight threw ,and To dr g I never said change the catback!
Last edited by thebigragu99; 09-15-2011 at 09:16 AM.. |
Appreciate
0
|
09-15-2011, 09:38 AM | #7 | |
Major General
285
Rep 5,063
Posts
Drives: Black e92 335i
Join Date: Apr 2010
Location: Brampton, Ontario
|
Quote:
I think we're both mis-understanding each other but... The fastest e9x's around... all have secondary cats in place with catless downpipes... so I think adding a secondary cat in place onto the Vanguard system shouldn't rob much power at all, but the cats will help battle the nasty smell quite effectively. As for the resonator, I was referring to the resonator delete on the vanguard exhaust, which would make it noticeably more raspy.
__________________
JB4 / OSS Angel Eyes / Downpipes / F1-Racewerks FMIC / Custom Meth Kit / BMS DCI / ER Chargepipe / HKS BOV / BMS Meth Elbow / BMW Performance Exhaust / Carbon Fiber Inlay Quad Tips / 19" Miro 111 / Front Aero Lip / M3 Sides / VRS CSL Trunk / Mtech Rear / DD CF Quad Finned Diffuser / LCI Tails / BBK / Smoked Reflectors / F1 Euphoria LED Interior / License LED's / GT 5000k Corners / 5000k HID Fogs / Air Scoops / LED Turn Signals / FK Silverline Coilovers / HPA endlinks / Vibrant Resonators / Osram CBI 5000k D1S
|
|
Appreciate
0
|
09-15-2011, 09:42 AM | #8 |
Colonel
62
Rep 2,013
Posts |
At that point I would just get mufflers, maybe you would like the perf exhaust?
Try the vanguard if the smell is bad, then just go to the same shop ur friend went to.. |
Appreciate
0
|
09-15-2011, 09:55 AM | #9 |
Colonel
167
Rep 2,875
Posts |
1....if you're worried about the smell of a catless exhaust, just don't get a catless system. Go for the axle back such as the PE or some other.....they will change the note of the exhaust as well.
__________________
'08 AW E90 335i PROcede V5 | BMS DCI | RR DPs | ETS FMIC | FORGE DVs | Stett CP | Vanguard | PSS10 |
Appreciate
0
|
09-15-2011, 10:28 AM | #10 | |
Banned
48
Rep 828
Posts |
Quote:
Lol I think so! I have a 135 and the exhaust is a bit different then yours..I have 2 rear cats and a rear resonator right before the axle back..I cut off the rear cat and tried looking threw it in the light,but only saw a small little beam in it.the rule is on a turbo car is that ,the less back pressure the better te turbos breath and spool up.I put in 2 straight pipes and the car spooled faster and have zero rasp!! The sound is amazing and perfect IMO!I can only hear it wot ,but normal driving it's whisper quiet ..I build my car to be a sleeper, even going to change the rear badge to a 125 .. |
|
Appreciate
0
|
09-15-2011, 10:58 AM | #11 |
FREE DREAMK
164
Rep 9,321
Posts
Drives: the shiiit!
Join Date: Aug 2009
Location: Vineland, NJ
|
I like how it smells...
__________________
|
Appreciate
0
|
09-15-2011, 12:15 PM | #13 |
Colonel
85
Rep 2,325
Posts |
Ive seen quite a few people say this...any particular reason in your case?
__________________
| Andrew | M Technik | BMW Performance | BBS | Forge | V1 | LUX | Bilstein | Precision-Sport |
|
Appreciate
0
|
09-15-2011, 07:27 PM | #15 |
Banned
23
Rep 883
Posts |
so wait you guys are sayingg cats add power... ? ive never hurd this you dont want back pressure for a turbo... straight pipes all the way thru would be best for this car.. yes rasp will be get ar25s...
is this proven 2nd cats delete with straight pipes is power los ? |
Appreciate
0
|
09-15-2011, 11:09 PM | #16 | |
Major General
285
Rep 5,063
Posts
Drives: Black e92 335i
Join Date: Apr 2010
Location: Brampton, Ontario
|
Quote:
They don't add power, they were just being suggested as a way to combat the smell, since they rob negligible amounts of power.
__________________
JB4 / OSS Angel Eyes / Downpipes / F1-Racewerks FMIC / Custom Meth Kit / BMS DCI / ER Chargepipe / HKS BOV / BMS Meth Elbow / BMW Performance Exhaust / Carbon Fiber Inlay Quad Tips / 19" Miro 111 / Front Aero Lip / M3 Sides / VRS CSL Trunk / Mtech Rear / DD CF Quad Finned Diffuser / LCI Tails / BBK / Smoked Reflectors / F1 Euphoria LED Interior / License LED's / GT 5000k Corners / 5000k HID Fogs / Air Scoops / LED Turn Signals / FK Silverline Coilovers / HPA endlinks / Vibrant Resonators / Osram CBI 5000k D1S
|
|
Appreciate
0
|
Bookmarks |
Thread Tools | Search this Thread |
|
|