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| ar Design 335i Catless Downpipes N54 | ARD3INDP335iCATLESS |
 | The only TRUE 3" catless downpipes currently on the market! 3" tubing until cat-back flange - all systems currently on the market reduce to 2.5" much closer to the turbocharger.
100% Hand Crafted in the USA - not China - 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 flanges.
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
Available with a 2000 | GSP Price:
$ CALL
More Info.. |
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| ar Design 335i / 335xi Stage 1 Oil Cooler Kit | 335OILCOOLERKITSTG1 |
 | Finally, an optimal solution for the famous oil temperature problems the N54 suffers from. Instead of simply replacing the factory oil cooler with a slightly larger core, we have left the factory setup intact and added a SECOND core behind the kidney grilles, not just increasing but more than DOUBLING cooling capacity...and providing the oil cooler with much more airflow then what is available in the fender wells.
What is included?
- Oil filter housing adapter CNC'd from billet aluminum and anodized black
- Setrab Oil Cooler Core, simply the best brand in oil cooler cores available. Most of the competition use far inferior cores resulting in higher temperatures and often times in c... | GSP Price:
$ CALL
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| ar Design 335i Downpipes with Race Cats N54 | |
 | The only TRUE 3" catted downpipes currently on the market! 3" tubing until cat-back flange - all systems currently on the market reduce to 2.5" much closer to the turbocharger.
100% hand crafted in the USA from premium 304 Stainless Steel (cats are made from 409 Stainless) - flanges and O2 bungs included!
Water-jet cut 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges.
Magnaflow 3" metal substrate race cats
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... | GSP Price:
$ CALL
More Info.. |
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| ar Design 335i Catless Downpipe N55 | |
 | 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! | GSP Price:
$ CALL
More Info.. |
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