"There is no school
like old school."
GTO
64-65 GTO
2 1/4" head pipes
2" tail pipes- rear exit
Mufflers
66-67 GTO
2" head pipes
2 1/4" tail pipes- rear exit
Mufflers
69 GTO       
2" head pipes
2 1/4" tail pipes- rear exit
Mufflers
66-67 GTO w/resonators  
2 1/4" head pipes
2 1/4" tail pipes w/resonators- rear exit
Mufflers
69 GTO Ram Air    
2 1/4" head pipes
2 1/4" tail pipes- rear exit
Mufflers
68 GTO  
2" head pipes
2 1/4" tail pipes- rear exit
Mufflers
70-71 GTO       
2" head pipes
2 1/4" tail pipes- rear exit
Mufflers
68 GTO Ram Air       
2 1/4" head pipes
2 1/4" tail pipes- rear exit
Mufflers
70-71 GTO Ram Air     
2 1/4" head pipes
2 1/4" tail pipes- rear exit
Mufflers
All standard stock dual
exhaust replacement
systems are aluminized
and includes flanges &
clamps.

All Pontiac Ram Air &
Super Duty systems are
aluminized and includes
clamps.  
Flanges are special order
for Pontiac Ram Air &
Super Duty.
D&A Old School Automotive
31w218 91st Street
Naperville, IL 60564
815-517-0216
DAOLDSCHOOLAUTOMOTIVE@YAHOO.COM
Shipping & handling
charge does apply.  
Shipping is done through
Fed-Ex.  We accept the
following forms of payment
for shipping orders.  Visa,
Mastercard, AMEX &
Discover.  We accept the
following forms of payment
for picked up orders.  
Cash, Check, Visa,
Mastercard, AMEX &
Discover.
"There is no school like old school."
6 cylinder systems available
call or email for pricing.

Cat-back systems available
call or email for pricing.

Station wagon systems available
call or email for pricing.

Custom systems are available by
appointment only for the
following:

Mustang, Chrysler, Corvette,
Light truck, Suv's or anything
newer or older than oldest or
newest listing.
OSA-PA68G-RA
OSA-PA667G-R
OSA-PA68G
OSA-PA667G
OSA-PA701G-RA
OSA-PA69G-RA
OSA-69G
*Specify with or without splitters
*Splitters special order
72 GTO       
2" head pipes
2 1/4" tail pipes- rear exit
Mufflers
*Specify with or without splitters
*Splitters are special order
72 GTO Ram Air       
2 1/4" head pipes
2 1/4" tail pipes- rear exit
Mufflers
*Specify with or without splitters
*Splitter are special order
OSA-PA72G


OSA-PA72G-SP
FOR SPLITTERS
OSA-PA72G-RA

OSA-PA72G-RA-SP
FOR SPLITTERS
OSA-PA701G
OSA-PA645G

OSA-PA645G-SP
FOR SPLITTERS
Factory correct
67-68 chrome tips.
use for manual
trans (or 2.25"
exhaust systems)

OSA-L139

$79.00 EA
Factory correct
72 splitters

OSA-L137P

$110.00 PR
Factory correct
69 Chrome tip.

OSA-L140

$82.00 EA
Factory correct style-
aftermarket
replacement splitters
for 64-65 & 72 GTO  
2.5" id inlet, 2.5" od
outlet. 304 s/s
construction, hand
mirror polished, can
be clamped or
welded in place.

OSA-751250

$259.95 PR
Factory correct 66-68
Chrome tip.
use with auto trans. (or
any 2" od exhaust
system)

OSA-L138

$89.00 EA
Factory correct
70-71 Splitters.

OSA-L141

$119.00 EA
Factory correct
64-65 Splitters - 2"

OSA-L137

$309.00 PR
73 GTO                 
2" head pipes
2" tail pipes- rear exit
Mufflers
OSA-PA73G
67 GTO Ram Air
2 1/4" head pipes
2 1/4" tail pipes- rear exit
Mufflers
OSA-PA67G-RA