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      09-19-2012, 10:55 AM   #1
Brigadier General
andrey_gta's Avatar

Drives: 130i coupé ;)
Join Date: Nov 2011
Location: Bimmerpost

iTrader: (1)

Garage List
2008 BMW 128i  [5.00]
Magnaflow Direct fit N52 Headers/Exhaust manifolds with Cats

Discovered this while browsing e46fanatics

Apparently, Magnaflow makes a Header style exhaust manifolds with catalytic converters.

  • Direct bold on
  • Less weight, about 40-50%
  • Flow is better, gains felt and some dyno'd, more HP for supercharged e46 vs non
  • Can be coated or wrapped
  • One supercharged e46 blew out the cats within months, others report no issue

e9x n52 parts 3 Series
Front: 49762

Rear: 49763

EDIT 2: ignore 1series parts below, apparently never in production.
EDIT: 1 series Specific( ignore this)
e82/e88/e87 n52 1 series (no images)
Magnaflow 49750 Front; Magnaflow 49751 Rear

Cost: 700-850 each front and rear(the cheaper manifold)
Cheapest place is, but not sure if credible there are mixed reviews

For e46 the 3d images looked accurate to the real deal:
3d image:
real deal:

128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff

"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 12-03-2012 at 05:10 PM.