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Twisted Steel Down Pipe 3 to 2-1/2 IN 304 Stainless Steel

BMW 135i (E82/88) 11-13
335i (E90/92/93) 11-13
L6-3.0L (t) N55
Part Number: 48-36302-HN

Regular Price: $702.29

Special Price $596.95

MSRP: $836.06

Details:

  • In house testing produced a max gain of +14 HP and +39 ft. lbs. of TQ
  • A unique 3-1/2 IN to 4 IN stepped design is used to increase exhaust velocity
  • Constructed of durable mandrel bent brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking
  • 100% hand TIG-Welded by certified craftsmen for strength and durability
  • Designed using a resonance chamber to help reduce the in-cab resonance found with other non-catted down pipes
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Overview

aFe POWER Twisted Steel down pipe for the BMW 135i (E82/88) or 335i (E90/92/93) models with L6-3.0L (t) N55 engine. This down pipe uses a unique resonance chamber to capture sound waves and minimize in-cab resonance producing an aggressive tone on throttle with a smooth sound at cruising speeds without effecting performance. In recent testing, the race version down pipe produced +14 HP and +39 lbs. x ft. of TQ. The high-flowing down pipe is designed using mandrel-bent, 304 stainless steel tubing for optimum flow resulting in added horse power and torque. The down pipe is 100% hand TIG-Welded and uses a 2-1/2 IN into 4 IN stepped design that increases exhaust velocity and eliminates low pressure drops which helps to scavenge the exhaust for increased intake charge and more power.

Resonance Chamber:
This down pipe is designed using a resonance chamber to help reduce the in-cab resonance found with other non-catted down pipes.

3-1/2 IN to 4 IN Stepped Design:
A unique 3-1/2 IN to 4 IN stepped design, is used to increase exhaust velocity and increase usable torque. This means more aggressive throttle response and increased passing power.

TIG-Welded:
100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks.

Brushed 304 SS Construction:
This down pipe is constructed of durable mandrel bent brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking.

Hassle-Free Installation:
All hardware and brackets are included for a hassle-free installation. This unit also comes with a 2-year warranty.

Race Disclaimer:
This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. To complete the purchase of this item, aFe POWER competition acknowledgement/liability release form must be filled out and submitted.

All aFe exhaust systems are engineered and manufactured in our Corona, California facility.

Applications

Vehicle Applications

Year Make Model SubModel Engine Fuel
2011-2013BMW 135i (E82/E88) N55 Engine L6 3.0L (t) Gas
2011-2011BMW 335i (E90) N55 Engine L6 3.0L (t) Gas
2011-2013BMW 335i (E92/E93) N55 Engine L6 3.0L (t) Gas
2011-2011BMW 335i xDrive (E90) N55 Engine L6 3.0L (t) Gas
2011-2013BMW 335i xDrive (E92/E93) N55 Engine L6 3.0L (t) Gas
2013-2015BMW X1 (E84) N55 Engine L6 3.0L (t) Gas
Reviews (1)

Customer Reviews (1)

Average Ratings By Category:

  • Quality
  • Value
  • Easy Install

1 Item(s)

I couldn't be happier with the performance and sound of the...
I couldn't be happier with the performance and sound of the aFe POWER down pipe. I've tried other 4" down pipes on my N55 but took them off because of drone and the lag they created. I was skeptical at first, but hands down, the engineering of this down pipe is by far the best on the market. Even at first glance, you'll notice there's something different. That arm-like tube isn't just for looks, it's their unique resonance chamber that eliminates any drone. Take a look on the inside and you'll see the sharp y-pipe design splits the air reducing excess turbulence, a detail neglected by others I've tested. Installing and uninstalling exhaust parts are a pain. Do it right the first time and buy aFe.
  • Quality
  • Value
  • Easy Install
Review by Eric G. / Posted on 7/8/2016
Add-ons

Regular Price: $702.29

Special Price $596.95

MSRP: $836.06

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