We are proud to introduce our VRSF 3.5" catless and catted downpipe for your N55 135i & 335i/xi. Thie 3.5" downpipe is THE best bang for the buck mod available. By eliminating the restrictive catalytic converter in the factory downpipe, back pressure is reduced significantly which results in faster spool, an increase in power & a more aggressive exhaust note.
Our catless downpipe feature a full 3.5" stainless steel design as well as a cast 304 grade stainless steel merger that offer a smooth transition from the turbo to the mid pipes. All VRSF downpipes are hand crafted from SS304 grade stainless steel and include a lifetime warranty as well as our "No Hassle" satisfaction guarantee (includes fitment). Grade 12 installation hardware and high quality steel gaskets are included with purchase.
Our N55 downpipe now comes ceramic coated free of charge. We use Cerakote's best thermal barrier coating which helps keep the hot air inside the exhaust and out of the engine bay which decreases overall intake air temps along with engine coolant and transmission oil temps.
Note: We now offer a catted option which features a Magnaflow 200 Cell Count High Flow Catalytic Converter.
VRSF 3.5" E90/E92 335i/335xi N55 Stainless Steel Catless Downpipe
- Made from hand crafted, tig welded 3.5" 304 grade stainless steel.
- CFD optimized cast stainless steel merge collector.
- Smooth radius bends to decrease turbulence and increase flow.
- CNC SS304 Stainless Steel Flanges.
- Gains from 25-30hp with tune.
- Gaskets & mounting hardware included.
- VRSF Lifetime Warranty
VRSF 3.5" Catless Downpipe W/Stock Exhaust
- I am very happy with the pipeReview by Craig C.
- Super happy with the final resultReview by chronopete
http://www.e90post.com/forums/showpost.php?p=19429760&postcount=19 (Posted on 2/20/16)
- I'm happy with the sound levelsReview by GoodMoodley
Once the engine warms up a bit the sound evens out. It is a little bit louder than stock when driving normally with mild throttle inputs. When you step on it it sounds great. I even get pops and burbles that were not present before. I was considering getting exhaust as well and am glad I didn't. I'm happy with the sound levels I have now.
http://www.1addicts.com/forums/showpost.php?p=19332815&postcount=3 (Posted on 2/4/16)
- Sounds gloriousReview by olivojoe
http://www.e90post.com/forums/showpost.php?p=19111367&postcount=2 (Posted on 12/28/15)
- I would recommend the VRSF DP.Review by Schmidty335i
http://www.e90post.com/forums/showpost.php?p=16653068&postcount=9 (Posted on 9/18/14)
- This is the way to go, and I couldn't be happier.Review by ryanakata
So I get everything back together, and the first start, CANFlap Open, and Whooaaaaaa it's loud. My parent's come outside to see if anything is wrong but then it idles down and sounds just fine. I take it for a drive and am in love with the sound. You can hear the turbo spooling in normal driving. I get the car warmed up, switch to Map2, head out near the airport. This thing is a beast now, I had to use the DTC button to prevent the car from interfering with the throttle. It slams you into the seat, and sounds like an exotic after 4k RPM. Combined with the JB4, this is the way to go, and I couldn't be happier.
http://www.e90post.com/forums/showthread.php?t=1003132&highlight=vrsf (Posted on 7/2/14)
- Quality product it fit first try!Review by ZeroSix
So cold start is loud. Once warmed up it goes to a quiet rumble a little louder than stock. Regular civilized driving there isn't much sound difference either. It's very nice for cruising. The smell is similar to a lawn mower it's not awful but for sure noticeable. Now when you push the car...music to my ears! It sounds amazing. You can hear everything from the intake pulling in air to the turbos spooling and the exhaust roaring behind you it's beautiful! I'm debating on keeping it how it is now! The turbo spools a lot quicker, response is improved. And my stock run flats don't hold traction (gotta change them ASAP) oh man those pops and crackles are crazy! I've scared a few people on the side walk.
I really have nothing negative to say about this Downpipe it was worth it entirely. Quality product it fit first try. I have a JB4 so it clears the code for me so I can't tell you how long it took my CEL to turn on. I'll try to upload some videos for you all! If you have any questions or whatever feel free to ask!
http://www.e90post.com/forums/showthread.php?t=997171&highlight=vrsf (Posted on 7/2/14)
- Fitment was perfect!Review by Jgabucc1
I have read several reviews on this forum none of which really convinced me or drove me from an emotional standpoint to get this done due to issues with CEL light, and installation hassle of getting this installed on a XI.
To keep this brief and to the point, anyone who is on the fence about swapping out the stock downpipe DONT BE! This is of course your currently running a JB4 or other tune. The car should of came like this out of the factory. It's a whole new animal and has really added to the fun factor which simply wasn't there before. Acceleration in all gears and RPMs has increased tremendously, add that to the fact the sound of the turbo spooling, big increase in burble and pops heard, I almost want to say I look forward to getting in the car and going for a drive.
Fitment was perfect and the unit aligned, with a little play of the exhaust, perfectly. I'm very very happy with my choice and regret not having this done sooner. No idle issues to talk about. So far after two days I haven't smelled anything differently than when the catted pipe was on the car.
http://www.e90post.com/forums/showthread.php?t=1004615 (Posted on 7/2/14)
- Car feels like a beast!Review by TeinBMW
http://www.e90post.com/forums/showpost.php?p=14503990&postcount=91 (Posted on 8/15/13)
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