These closed course race systems utilize the latest DMC technology to deliver big gains in acceleration, horsepower and torque throughout the entire power band. DMC has captured additional strength and critical weight savings (Low-CG muffler placement) by utilizing extruded alloy and T-304 Stainless Steel construction. The DMC Comp pipes maximize performance as a full system, but can also be purchased individually as a slip-on muffler or head-pipe. The Muffler comes equipped with AMA/FIM approved end-cap and U.S. Forestry approved, removable screen spark arrestor. Silencer is easily re-packable in minutes. The perfect system for those serious about SX, MX or Off-Road racing!
Less then 102db* Aircraft grade billet muffler bracket
For competition use only Tough T304 stainless head and mid pipe
Stainless steel AMA/FIM endcap Lightweight extruded muffler
USDA spark arrestor included Low center of gravity muffler position
Extended length for noise suppression Easy repack, no rivets to drill
Includes SOS (baffle assembly)  
*(using SAE J-1287 standards on an unmodified bike)
   
System
Slip On
 
 
Photos
Lbs
Saved
HP%
Gain

Torque% Gain

System
Retail
Lbs
Saved
HP%
Gain
Torque% Gain
Slip
On
Retail
HONDA                      
CRF150R 2007      
25321-00
429.95
         
CRF250R 04-05,
CRF250X 04-07
 
.28
14
12
25304-00
539.95
1.02
12
10
25304-01
349.95
CRF250R 06-07  
2.0
13
11
25326-00
539.95
         
CRF450R 05-07
.25
12
14
25322-00
499.95
.95
10
10
25312-01
349.95
KAWASAKI                      
KX250F 04-06  
.63
14
12
25801-00
539.95
         
KX450F 2006
.18
10
10
25604-00
499.95
.87
5
8
25604-01
349.95
KTM                      
400/450/525
SX/EXC/MXC/XC 04-06
         
3.5
10
12
25701-01
329.95
250 SX-F 05-06  
.85
10
10
25703-01
329.95
SUZUKI                      
RMZ250 04-06  
.63
14
12
25801-00
539.95
         
RMZ450 05-06
.923
9.8
8
25501-00
499.95
.923
9.8
8
25501-01
349.95
YAMAHA                      
YZ250F 2006
.995
12.88
11.22
25420-00
539.95
1.14
8
8.14
25420-01
349.95
YZ450F 06-07
1.2
13
12
25418-00
539.95
1.44
7.5
9
25418-01
349.95
YZ250F 03-05 / WR250 03-06  
1.15
12.8
13
25404-00
499.95
1.43
8.1
10
25404-01
349.95
YZ450F 03-05 / WR450 03-06            
1.3
8
8
25401-01
349.95
 
 
System
Slip On
 
Photos
Lbs
Saved
HP%
Gain

Torque%
Gain

System
Retail
Lbs
Saved
HP%
Gain
Torque%
Gain
Slip
On
Retail
ARCTIC CAT                      
DVX400 05-07  
5.18
17
21
25809-00
499.95
4.35
13
16
25809-01
349.95
DVX400 02-04  
5.06
16
20
25804-00
499.95
4.23
12
15
25804-01
349.95
HONDA                      
TRX400EX 99-07  
5.1
16
15
25309-00
549.95
4.78
12
14
25309-01
349.95
TRX450R 04-05  
4.36
18
16
25307-00
499.95
3.78
13
12
25307-01
349.95
TRX450R/E 06-07  
4.97
17
15
25316-00
499.95
3.89
13
12
25316-01
349.95
KAWASAKI                      
KFX400 02-04  
5.06
16
20
25804-00
499.95
4.23
12
15
25804-01
349.95
KFX400 05-07  
5.18
17
21
25809-00
539.95
4.35
13
16
25809-01
349.95
KFX450R Twin 2008
 
 21.5
24.8 
25607-00
789.95
This Comp System performs under 96db
KFX700 03-07  
25601-00
699.95
POLARIS                      
PREDATOR 500 04-07
6.05
13
15
25806-00
589.95
         
RZR 800 2008
1 , 2
17.8
21.2
25817-00
884.95
SUZUKI                      
LT-R 450 06-07
6.01
15.3
14.6
25510-00
499.95
4.95
   
25510-01
349.95
LT-Z400 05-07
5.18
17
21
25809-00
539.95
4.35
13
16
25809-01
349.95
LT-Z400 02-04  
5.06
16
20
25804-00
539.95
4.23
12
15
25804-01
349.95
YAMAHA                      
YFZ450 04-07  
4.66
19
16
25429-00
539.95
3.1
12
13
25429-01
349.95
Raptor 250 2008
coming
coming
coming
25441-00
649.95
         
Raptor 700 06-07  
6.25
23
19
25416-00
589.95
4.9
15
15
25416-01
349.95
Raptor 700 Twin 06-07  
24
31
25427-00
789.95
         
Raptor 660 01-05
6.5
16
15
25410-00
589.95
         
All Rhino (see Quiet Systems)                
 
     
PIPE(S)
SPARK
  SYSTEM RETAIL
ONLY
RETAIL
ARRESTOR
RETAIL
Banshee 350 916 89-05 (Alien) 25043-00
569.95
25043-60
319.95
25900-00
(2) 59.95
 
Banshee 350 Alien
89-05 (916)
25053-10
598.95
25043-60
319.95
25900-75
63.95
 
Blaster (All) 25044-00
329.95
25044-01
199.99
25900-75
63.95