Welcome to Absolute Top Level
Two Brothers Racing believes in test results, not theories, rumors or
myths. With this belief we custom build each of our performance exhaust
systems to the highest standards. There are no cookie-cutters. There are
no standard processes. Everything is tried and true to perform
specifically for each unique make and model of machine. Stepped Headers,
Crossover Tubes, Cone Shapes, D-Shapes, Hydroforming and etc. are all
buzz words often heard in the exhaust world. If they’re not tested and
proven, buzz words are simply noise.
That’s why we test with
intensity. When a configuration works and meets our performance,
durability and quality criteria, we use it. When it doesn’t, we test
until we find something that does. We constantly analyze every
conceivable combination of exhaust manufacturing techniques and material
technologies to ensure our customers are getting the Absolute Top Level
in performance exhaust. Below are the highlights a TBR system features.
Full System Details
Configuration:
4-2-1 or 2-1 collection systems are designed for maximum horsepower and
torque increases and the efficient delivery of those gains throughout
the RPM range.
Merge Collectors:
The key to an efficient system is in the merge collectors. At TBR, our
collectors are hand made, 100% TIG welded and optimized for high flow
and velocity. A variety of collector lengths, diameters and shapes are
used based on applications and performance goals for particular models.
Crossover Tubes:
Just like all exhaust system components and configurations, the
integration of crossover tubes is implemented into TBR exhaust
systems only when a performance increase is found through comprehensive
track and dyno testing. In many cases, crossover tubes hinder engine
performance. You will only see a crossover tube on a TBR exhaust if
performance is enhanced.
Mandrel Bent Tube:
All Two Brothers Racing systems are
created from .035 304 Stainless Steel
tube precision bent via our CNC Mandrel
Bender with exacting bend tolerances of
0.1 degree. All headers are mirror
polished for a custom finished look.
Stepped Headers:
TBR header tube diameters change on demand. And at TBR we
only demand the use of transitions from smaller to larger
header and connection tubes when it meets our performance
criteria checklist. The change can’t increase power in one area
of the powerband and sacrifice it in another. Steps in header
pipes are carefully placed and thoroughly tested in most TBR
4-2-1 systems but only when performance is enhanced across
the board.
CNC Machined
Flange Collars:
CNC Machined Flange Collars are
computer cut from solid chunks of Billet
Stainless Steel to provide a precise, leak
free fit.
CNC Machined Aluminum Flanges:
CNC Machined from Billet 6061-T6
Aluminum and hard anodized for
durability and style. Our Flanges
are designed extra thick to eliminate
warping and bending under extreme
temperature conditions.
Spring Fit Joints:
Slip connections are secured
with Stainless Steel swivel-hook
springs to provide vibration
damping, reduce header fatigue
and eliminate cracks.
