and NEW (gas) Marine & Helicopter Double Quiet Pipes
2016

Marine Tuned Pipes (un-muffled)
size Length Weight price stock #
2.5cc (.10-.15) (also aero pipe) 10" 1.2oz 41.95 1110
3.5ccLNP (.18-.25) (lo nitro) 10 5/8" 1.25oz 50.95 1323
3.5ccHNP (.18-.28) (hi nitro)
the top RTR .18 racing pipe
11 1/4" 1.8 oz 54.95 1324
3.5cc (.21-.32) (compound) 13" 2.2 oz 67.95 1325
3.5cc (.21-.36) (14°-1"-18°)
Drag Car racing pipe(see #1126)
(This is the old 3.5 Prather Pipes)
also see 3.5cc Drag Car Pipes
and T-Max Truck Pipes
11 1/2" 1.6 oz 46.95 1326
(1126)
7.5cc (.45-.46) 14" 2.8 oz 85.95 1345
11cc (.65-.67) 16" 3.4 oz 88.95 1365
13cc (.80-.91) (2 1/4"d at hi pt)
- std.-(7/8" hp & 0" flat high point)
16 7/8" 3.6 oz 96.95 1385
13cc (.80-.91) (2 1/4"d at hi pt)
- cust.( 1" hp & 0" flat high point)
16 3/4" 3.6 oz 109.95 1384
15cc (.90-1.0) (2 1/4"d at hi pt)
- std.-(7/8" hp & 1" flat high point)
17 1/2" 4.2 oz 100.95 1395
15cc (.90-1.0) (2 1/4"d at hi pt)
- cust-( 1" hp & 1" flat high point)
17 3/8" 4.2 oz 114.95 1394
18cc (.90-1.2) (2 1/4"d at hi pt)
- cust-(7/8" hp & 2" flat high point)
18 1/2" 4.5 oz 124.95 1396

Dear Customer Please note: Sometimes (especially in the larger pipes)
it's necessary to leave external blemishes (like the weld point) so
as to not compromise the internal structure of the pipe.
(compound) means this pipes front cone has two tapers instead of just one.
All of the larger Marine Pipes are compound pipes (see photos above)
(- std.- / standard pipes) Marine Pipes that we have had all along
(- cust- / custom pipes) NEW Variations of standard Marine Pipes
(hp) is the head pipe diameter, lead-in tube or front inlet diameter
(high point or hi pt) is the flat length at the widest point of the pipe

for connectors see our NEW line of Ultra-Pure Marine Silicone Tubing
Also see our Special Application Aero & Marine Headers


Muffled Marine Tuned Pipes
size Length Weight price stock #
2.5cc (.10-.15) (also aero pipe) 12"2.0 oz 72.951210
3.5cc (.18-.25) (lo nitro) 13 1/8"2.4 oz 79.951327
3.5cc (.18-.28) (hi nitro) 14"2.8 oz 81.951328
3.5cc (.21-.32) (compound) 15 3/4"3.2 oz 98.951329
7.5cc (.45-.46) 17"4.2 oz 114.951349
11cc (.65-.67) 19 1/2"5.2 oz 128.951369
13cc (.80-.91) (2 1/4"d at hi pt)
- std.-(7/8" hp & 0" flat high point)
21"5.6 oz 144.951389
15cc (.90-1.0) (2 1/4"d at hi pt)
- std.-(7/8" hp & 1" flat high point)
21 3/4"6.0 oz 152.951399
18cc (.90-1.2) (2 1/4"d at hi pt)
- cust-(7/8" hp & 2" flat high point)
22 3/4"6.3 oz 169.951397

Dear Customer Please note: Sometimes (especially in the larger pipes)
it's necessary to leave external blemishes (like the weld point) so
as to not compromise the internal structure of the pipe.
(compound) means this pipes front cone has two tapers instead of just one.
All of the larger Marine Pipes are compound pipes (see photos above)
(- std.- / standard pipes) Marine Pipes that we have had all along
(- cust- / custom pipes) NEW Variations of standard Marine Pipes
(hp) is the head pipe diameter, lead-in tube or front inlet diameter
(high point or hi pt) is the flat length at the widest point of the pipe

for connectors see our NEW line of Ultra-Pure Marine Silicone Tubing


The pipe photographed here is a #1382
Super-Q(uiet) Marine Tuned Pipes
size Length Weight price stock #
3.5cc (.18-.32) (compound) 14 3/4"3.6 oz 126.951322
7.5cc (.45-.46) 15 3/4"3.8 oz 147.951342
11cc (.65-.67) 19 1/4"5.4 oz 157.951362
13cc (.80-.91) (2 1/4"d at hi pt)
- std.-(7/8" hp & 0" flat high point)
20" 6 oz 197.95 1382
15cc (.90-1.0) (2 1/4"d at hi pt)
- std.-(7/8" hp & 1" flat high point)
20 3/4" 6.4 oz 230.95 1392

Dear Customer Please note: Sometimes (especially in the larger pipes
like the #1392s) it's necessary to leave external blemishes (like the
weld point) so as to not compromise the internal structure of the pipe.
(compound) means this pipes front cone has two tapers instead of just one.
All of the larger Marine Pipes are compound pipes (see photos above)
(hp) is the head pipe diameter, lead-in tube or front inlet diameter
(high point or hi pt) is the flat length at the widest point of the pipe

for connectors see our NEW line of Ultra-Pure Marine Silicone Tubing
Also see our Special Application Aero & Marine Headers
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
MARINE & Helicopter Pipes
(also for motors that run on gasoline)

Of the pipes photographed here the top one is a 2" and the lower one is a 2 1/4"
Double-Q(uiet) Marine (and Helo) Tuned Pipes
sizeIn-Let LengthOut-Let Weightprice stock #
15cc-26cc (2") 1"(od)19.75".545"(id)6.6oz 193.951401
15cc-24cc (2") 1"(od)19.50".497"(id)6.4oz 193.951402
15cc-26cc (2") 7/8"(od)20.75".545"(id)6.6oz 193.951403
15cc-24cc (2") 7/8"(od)20.50".497"(id)6.6oz 193.951404
25cc-38cc (2 1/4") 7/8"(od)21.25".545"(id)7.6oz 236.951405
25cc-32cc (2 1/4") 7/8"(od)21.25".497"(id)7.4oz 236.951406
25cc-38cc (2 1/4") 1"(od)20.50".545"(id)7.6oz 236.951407
25cc-32cc (2 1/4") 1"(od)20.25".497"(id)7.4oz 236.951408

The In-Let (O.D.) measurement is a general size not a specific measurement. The Out-Let (I.D.) is an approximant measurement.
The 2 1/4" pipes (1405,1406,1407 & 1408) will only be available when we can get the 2 1/4"(od)x.035 6061 metal. Please contact us.

for connectors see our NEW line of Ultra-Pure Silicone Tubing

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Macs Products
7935A Carlton Rd.
Sacramento, CA 95826