I was speaking to Andrew from ar design and committed to buying 15 sets of N55 catless pipes so he allowed me to move them at a crazy price.
Regular 729.00
ON Group Buy for 499.00
Fits the 135i / 335i / 335xi 4" Hi-Flo (2011+ N55 Engine)
We need 15 people to get this going but once we hit 10 we will start shipping.
Some Features!!
The only 4" catless downpipe currently on the market! Built with a carefully made 4" to dual 2.5" collector that mates to the factory style exhaust.
Typical gains with tuning in the 20+hp range!
100% hand crafted in the USA from premium 304 Stainless Steel - flanges and O2 bungs included!
Water-jet cut 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flange.
100% TIG welded, argon back-purged.
Set of our exclusive bomb-proof exhaust gaskets included.
Grade 10.9 Metric Hardware (145,000PSI tensile strength, C32-C39 Rockwell, Zinc Plated), and Nord-Lock positive locking re-usable washers included.
Factory location O2 bungs, with an added bung for a wideband O2 sensor!
List
1) Twinautowerke
2) I35it
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