best mufflers and exhaust systems
69 planthurst road carlton sydney nsw
the muffler and exhaust system specialists
HIGH PERFORMANCE & CUSTOM
EXHAUST SYSTEM SPECIALISTS
MUSTANG 1969
custom exhaust system specialists

Ford Mustang
429ci Big Block

Project:
Custom Headers 4-1
3 1/2" twin x system

Extractors 4-1 Tuned Length
Step-Up Design
: Tig welded
: Laser cut flange plates
: 2" Runners 12" long
:2 1/8" Runners 20" long
: Primary Overall length 32"
: Slip on Collectors 4" outlet

All our custom headers are made so the firing order is in sequence, while keeping all pipes in the correct firing order and length

The steering rack fitment and the modification the the strut towers make
this job possible,but only just...
The left hand side is still very tight the clutch slave cylinder has made things even tighter, this pic shows even with only three pipes in position room is very limited
The drivers side is even worse, the steering shaft , this pic shows even with only three pipes in position room is very limited
With the steering rack conversion, the strut towers modified room is very very scarce
Ford Mustang 3 1/2

The exhaust system made for this car is
a mild steel 3 1/2" twin x system, the mufflers were specially made for this application 10" x 5" x 16" long free flowing

The "X" System
The exhaust gases from left and right extractor mix in the x section,this evens out the exhaust gas back pressure, giving the engine a much smoother note. A slight reduction in overall diameter in the x area, the exhaust gas speed increases which helps [slightly] by creating a scavenging effect

We made 2 1/2" tailpipes finish this system
I recommend 2 1/2" or even smaller is some cases, this helps keep the sound level under 96dba [legal] drops the power output but the noise reduction is worth it,
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Last Update Friday, 9 March, 2007 .
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