Vishnu N55 Downpipe Review - BMW 3-Series (E90 E92) Forum

htt760 · 02-23-2011, 01:38 PM

Vishnu 3.5 inch N55 Downpipe

This review is to help members gauge possible interest in a new product from Vishnu Tuning. This is going to be straight forward and right to the point (short and simple). The two companies I was debating on going with were AR’s 4 inch dp and icarbon’s 4 inch dp but chose The Vishnu 3.5 inch DP.

We have learned from these forums that the restriction on the N55 is in the stock catalytic converter, removing this item will free up the flow for more horsepower/torque no matter what. I personally chose Vishnu because I could not Pass on the Deal offered, it’s a 3.5 inch DP, and the product didn’t look bad at all, oh and Shiv's dyno results sealed the deal.
Anyways, we can add Vishnu to the N55 downpipe list with AR and icarbon as well now.

I was really hoping this downpipe did not the do infamous power dip, and like it shows... NO POWER LOSS anywhere throughout the rpm range.
STOCK VS VISHNU DOWNPIPE Comparision

Car
2011 135i
DCT Transmission
44XX miles
Mods - Procede V5 and Some Stickers

Delivery
1. In Stock (When I Ordered), and it came faster then estimated
2. Robert@Vishnu - Great first impression, very informative

Packaging
1. It’s a DP, so nothing crazy difficult
2. Wrapped in Bubble Wrapping for Insulation

Install
1. Amateur Install in under 2 hours with proper tools
2. FITMENT was perfect – no issues ( Alignment is KEY, before Tightening anything)
3. Came with gaskets and bolts Necessary for the install
4. Instructions included
5. Remember to Unplug the battery after install for the DME to recalibrate.

Craftsmanship
1. Minimal WELDS
2. Full T 304 Stainless Steel
3. Everything looks consistent
4. Welds are SOLID
5. Brackets for DP Support are really really strong ( MY FOOT CAN TELL YOU THAT  )
6. Bends on DP are Mandrel Bent
7. No sign of grinding anywhere on DP
8. O2 bungs pretty much are in the factory location
9. FINALLY IT LOOKS REALLY DA#M GOOD.

Price
1. Very Fair
2. The DP overall was a great price for the Craftsmanship, Availability and Functionality.

Overall Thoughts
- Exhaust TONE is really deep and throaty now
- Turbo Spool is very noticeable. Old grandmas in their 5.0 mustangs watch out
- Seat to Pants <<< (H@LY SH1T)
- Robert@ Vishnu, easy and awesome customer service
- Low End Torque Improved and, Top End is night and day difference

Robert@vishnu · 02-23-2011, 02:03 PM

I am glad I was able to help. If you have any questions please feel free to email or PM me. Install should be fairly easy as we have ensured 100% fitment for every downpipe. Would love to see your review once you install it.

Videos??

Brey335i · 02-23-2011, 03:01 PM

Lucky N55 guys. Only one pipe to work with haha

Looks great

htt760 · 02-23-2011, 03:02 PM

Hey Robert, Thanks for the support. I have it installed but no videos yet....
Very Soon...

Do you think there will be a catted version?

Slops · 02-23-2011, 03:48 PM

awesome, need some vids man!

Iceberg3 · 02-23-2011, 03:50 PM

Quote:

Originally Posted by Sloppy

awesome, need some vids man!

+1

Shiv does it again

skyintothesea · 02-23-2011, 04:07 PM

looks very good, specially inside is smoothly. Will order this after some time with new connector is ready.

Keik E92 M3 · 02-23-2011, 04:23 PM

Very nice... Can you post a video clip? Sound?

htt760 · 02-23-2011, 04:44 PM

Quote:

Originally Posted by skyintothesea

looks very good, specially inside is smoothly. Will order this after some time with new connector is ready.

Yeah thats what I said when I first received it. Very Smooth and very minimal welds. So other ones i have looked at in the n54/n55 dp's you'll see some grinding going on.

Quote:

Originally Posted by keikdasneak

Very nice... Can you post a video clip? Sound?

Will do as soon as possible.

Sakebomb · 02-23-2011, 06:05 PM

Looks Great! You can tell its a quality looking piece. Definitely going to pick one up!

shiv@vishnu · 02-23-2011, 06:09 PM

Quote:

Originally Posted by Iceberg3

+1

Shiv does it again

Lol thanks but im not the one welding those things together. If I were, they would look VERY different. And not in a good way.

Iceberg3 · 02-23-2011, 06:12 PM

Quote:

Originally Posted by shiv@vishnu

Lol thanks but im not the one welding those things together. If I were, they would look VERY different. And not in a good way.

It's cool Shiv, we promise we won't tell lol

j/k

Excellent work regardless, especially the R&D on your part

lpphreakx06 · 02-23-2011, 06:15 PM

Clean welds!

htt760 · 02-23-2011, 06:26 PM

Quote:

Originally Posted by shiv@vishnu

Lol thanks but im not the one welding those things together. If I were, they would look VERY different. And not in a good way.

hahahahaaha... I think i can say the same if i were welding. At least you are giving the N55 guys some love for product development.

MJR63 · 02-23-2011, 06:59 PM

I really like the 3.5" vs. the 4.0" DP's. I've seen Juiced46 dyno result of the 4.0" AR's and I was disappointed with the results. I think the 3.5 is going to be the sweet spot! I'm ordering this!

htt760 · 02-23-2011, 09:55 PM

Quote:

Originally Posted by MJR63

I really like the 3.5" vs. the 4.0" DP's. I've seen Juiced46 dyno result of the 4.0" AR's and I was disappointed with the results. I think the 3.5 is going to be the sweet spot! I'm ordering this!

Although Juiced46 did mention that he has the XI version maybe the cause of the powerloss... AR does have nice products, but I have to agree with 3.5 inches.

FrankiE90 · 02-24-2011, 01:41 AM

congrats.
nice look'n downpipe.
can u guys link me to the dyno for the 3.5 dp.

Shiv , Robert - how's the bung placement for the 335i and 335ix.
or is that placement in the pict above good for the 135 and 355

Muskalade172 · 02-24-2011, 02:45 AM

Subscribing!! Awesome Work!!

htt760 · 02-24-2011, 12:45 PM

Quote:

Originally Posted by FrankiE90

congrats.
nice look'n downpipe.
can u guys link me to the dyno for the 3.5 dp.

Shiv , Robert - how's the bung placement for the 335i and 335ix.
or is that placement in the pict above good for the 135 and 355

FrankE90, just updated with dynos for you. Hope that helps, its directly from Vishnu on other post.

Sakebomb · 02-24-2011, 12:48 PM

Those are some Monster Torque gains!

Juiced46 · 02-24-2011, 12:49 PM

Looks nice! Do you plan on doing a before and after dyno with yours?

Also the XI has a different o2 sensor placement then the non XI. However it should still work no problem in the other location.

The dynos you posted. Are you sure that was a before/after of the DP? I could have sworn that post by shiv with the newest dyno sheet was after they gained fuel control not a before and after of the DP.

FDfranklin · 02-24-2011, 12:58 PM

Those are vishnus charts, not yours?

If so pointless...

02-23-2011, 01:38 PM	#1
htt760 PROcede it and Call it a DAY Drives: 2011 135i DCT, 2011 335i Join Date: Nov 2010 Location: California Posts: 171 iTrader: (0)	Vishnu N55 Downpipe Review Vishnu 3.5 inch N55 Downpipe This review is to help members gauge possible interest in a new product from Vishnu Tuning. This is going to be straight forward and right to the point (short and simple). The two companies I was debating on going with were AR’s 4 inch dp and icarbon’s 4 inch dp but chose The Vishnu 3.5 inch DP. We have learned from these forums that the restriction on the N55 is in the stock catalytic converter, removing this item will free up the flow for more horsepower/torque no matter what. I personally chose Vishnu because I could not Pass on the Deal offered, it’s a 3.5 inch DP, and the product didn’t look bad at all, oh and Shiv's dyno results sealed the deal. Anyways, we can add Vishnu to the N55 downpipe list with AR and icarbon as well now. I was really hoping this downpipe did not the do infamous power dip, and like it shows... NO POWER LOSS anywhere throughout the rpm range. STOCK VS VISHNU DOWNPIPE Comparision Car 2011 135i DCT Transmission 44XX miles Mods - Procede V5 and Some Stickers Delivery 1. In Stock (When I Ordered), and it came faster then estimated 2. Robert@Vishnu - Great first impression, very informative Packaging 1. It’s a DP, so nothing crazy difficult 2. Wrapped in Bubble Wrapping for Insulation Install 1. Amateur Install in under 2 hours with proper tools 2. FITMENT was perfect – no issues ( Alignment is KEY, before Tightening anything) 3. Came with gaskets and bolts Necessary for the install 4. Instructions included 5. Remember to Unplug the battery after install for the DME to recalibrate. Craftsmanship 1. Minimal WELDS 2. Full T 304 Stainless Steel 3. Everything looks consistent 4. Welds are SOLID 5. Brackets for DP Support are really really strong ( MY FOOT CAN TELL YOU THAT  ) 6. Bends on DP are Mandrel Bent 7. No sign of grinding anywhere on DP 8. O2 bungs pretty much are in the factory location 9. FINALLY IT LOOKS REALLY DA#M GOOD. Price 1. Very Fair 2. The DP overall was a great price for the Craftsmanship, Availability and Functionality. Overall Thoughts - Exhaust TONE is really deep and throaty now - Turbo Spool is very noticeable. Old grandmas in their 5.0 mustangs watch out - Seat to Pants <<< (H@LY SH1T) - Robert@ Vishnu, easy and awesome customer service - Low End Torque Improved and, Top End is night and day difference Last edited by htt760; 03-07-2011 at 02:57 PM. Reason: Added the Dyno Comp
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02-23-2011, 02:03 PM	#2
Robert@vishnu Second Lieutenant Drives: Corvette C6 Z06 Join Date: Oct 2008 Location: Danville Posts: 207 iTrader: (2)	N55 Downpipe I am glad I was able to help. If you have any questions please feel free to email or PM me. Install should be fairly easy as we have ensured 100% fitment for every downpipe. Would love to see your review once you install it. Videos??

02-23-2011, 06:15 PM	#13
lpphreakx06 Professional Moose Racer Drives: SG 335i E92 Join Date: Jul 2008 Location: Bellevue, Wa Posts: 7,241 iTrader: (25)	Clean welds! __________________ BMW Dream Team PNW Chapter, member #1 \|HP Autowerks \| AR DESIGN \| BMW PERFORMANCE \| STOP TECH \| Volk Racing\| AMS \| ARKYM

02-24-2011, 01:41 AM	#17
FrankiE90 Major General Drives: 2011 E90 Space Gray™ Join Date: Feb 2008 Location: Pasadena, Ca Posts: 8,503 iTrader: (10)	congrats. nice look'n downpipe. can u guys link me to the dyno for the 3.5 dp. Shiv , Robert - how's the bung placement for the 335i and 335ix. or is that placement in the pict above good for the 135 and 355 __________________ FrankiE90 AKA:.[The TANK] *CLICK THE SIG 2011 335 E90 MTECH 6MT • KW V3 • INJEN Intake • Berk 4" DP • Vanguard V2 exhaust • Procede V5 • Stoptech BBK • RPI Scoops • Karbonwerk CSL Trunk • LUX H8 • 19" BBS LM • 18" BBS GT4

02-24-2011, 12:49 PM	#21
Juiced46 Captain Drives: 03 Turbo Cobra, 2011 335xi Join Date: Jun 2010 Location: Wallingford CT Posts: 978 iTrader: (3)	Looks nice! Do you plan on doing a before and after dyno with yours? Also the XI has a different o2 sensor placement then the non XI. However it should still work no problem in the other location. The dynos you posted. Are you sure that was a before/after of the DP? I could have sworn that post by shiv with the newest dyno sheet was after they gained fuel control not a before and after of the DP. __________________ 2013 Alpine White F10 535i. JB4 S2, Quad Tip Magnaflow Exhaust, H&R Springs 2011 335ix Le Mans Blue w/ M Sport SOLD 2003 Turbo Cobra 765rwhp/650rwtq 9.77@126 pump gas, lifting @ the 1000ft mark

02-23-2011, 03:01 PM	#3
Brey335i Brigadier General Drives: e46 ///M3 Join Date: Oct 2009 Location: Austin, TX Posts: 4,741 iTrader: (11)	Lucky N55 guys. Only one pipe to work with haha Looks great

02-23-2011, 03:02 PM	#4
htt760 PROcede it and Call it a DAY Drives: 2011 135i DCT, 2011 335i Join Date: Nov 2010 Location: California Posts: 171 iTrader: (0)	Hey Robert, Thanks for the support. I have it installed but no videos yet.... Very Soon... Do you think there will be a catted version?

02-23-2011, 03:48 PM	#5
Slops Major General Drives: 2011 E90 335i Xdrive Join Date: Jan 2011 Location: Oxford Posts: 5,354 iTrader: (1)	awesome, need some vids man!

02-23-2011, 04:07 PM	#7
skyintothesea Enlisted Member Drives: 2011 e92 coupe 335i DCT Join Date: Dec 2010 Location: China Posts: 40 iTrader: (0)	looks very good, specially inside is smoothly. Will order this after some time with new connector is ready.

02-23-2011, 04:23 PM	#8
Keik E92 M3 Banned Drives: BMW M3 DCT Join Date: Jan 2010 Location: SoCal Posts: 1,400 iTrader: (6) Garage List 2009 BMW [4.50] 2011 BMW 335i [3.40]	Very nice... Can you post a video clip? Sound?

02-23-2011, 06:05 PM	#10
Sakebomb Enlisted Member Drives: 135i Join Date: Jan 2011 Location: Yorba Linda Posts: 32 iTrader: (0)	Looks Great! You can tell its a quality looking piece. Definitely going to pick one up!

02-23-2011, 06:59 PM	#15
MJR63 Lieutenant Drives: 2011 335i X-Drive Sedan Join Date: Sep 2010 Location: Tolland, CT Posts: 415 iTrader: (5) Garage List 2011 BMW 335i x-drvie [0.00]	I really like the 3.5" vs. the 4.0" DP's. I've seen Juiced46 dyno result of the 4.0" AR's and I was disappointed with the results. I think the 3.5 is going to be the sweet spot! I'm ordering this!

02-24-2011, 02:45 AM	#18
Muskalade172 New Member Drives: 2011 E92 335i M-Sport Join Date: Sep 2010 Location: APO Posts: 24 iTrader: (1)	Subscribing!! Awesome Work!!

02-24-2011, 12:48 PM	#20
Sakebomb Enlisted Member Drives: 135i Join Date: Jan 2011 Location: Yorba Linda Posts: 32 iTrader: (0)	Those are some Monster Torque gains!

02-24-2011, 12:58 PM	#22
FDfranklin d[-_-]b Drives: 2011 LeMans Blue 135i Join Date: Aug 2010 Location: Tampa, Fl Posts: 763 iTrader: (0)	Those are vishnus charts, not yours? If so pointless... __________________

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