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MTX Audio THUNDER51

360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System

THUNDER51 big
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360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Save $13 on install kits for this speaker

found car based on your search
Fits the following location in your Forenza
  • Lower Rear Door
1
$249.95 /set

In stock

Limited time!

MTX Audio TERMINATOR52

140W Peak (70W RMS) 5.25" Terminator Series 2 Way Component 4-ohm Speakers

TERMINATOR52 big
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140W Peak (70W RMS) 5.25" Terminator Series 2 Way Component 4-ohm Speakers

• 70 watts Peak Each, 35 watts RMS Each
• 1" Mylar Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 83.6 dB

Free Speaker Accessory at Checkout!
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Save $5 on install kits for this speaker

found car based on your search
Fits the following location in your Forenza
  • Lower Rear Door
5
List price $129.95
-69% $39.99 /set

In stock

Limited time!

MTX Audio THUNDER52

180W Peak (90W RMS) 5.25" Thunder Series 2 Way Coaxial 4-ohm Speakers

THUNDER52 big
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180W Peak (90W RMS) 5.25" Thunder Series 2 Way Coaxial 4-ohm Speakers

• 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Free Speaker Accessory at Checkout!
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VIP Product Get $12.00 in rewards to spend later

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Save $13 on install kits for this speaker

found car based on your search
Fits the following location in your Forenza
  • Lower Rear Door
2
$119.95 /pair

In stock

MTX TERMINATOR5

140W Peak (70W RMS) 5.25" Terminator Series 2 Way Coaxial 4-ohm Speakers

TERMINATOR5 big
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140W Peak (70W RMS) 5.25" Terminator Series 2 Way Coaxial 4-ohm Speakers

• 70 watts Peak Each, 35 watts RMS Each
• Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Save $13 on install kits for this speaker

found car based on your search
Fits the following location in your Forenza
  • Lower Rear Door
List price $69.95
-14% $59.95 /pair

In stock

MTX TERMINATOR35

80W Peak (40W RMS) 3.5" Terminator Series 2 Way Coaxial 4-ohm Car Speakers

TERMINATOR35 big
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80W Peak (40W RMS) 3.5" Terminator Series 2 Way Coaxial 4-ohm Car Speakers

• 40 watts Peak Each, 20 watts RMS Each
• Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Save $12 on install kits for this speaker

found car based on your search
Fits the following location in your Forenza
  • Lower Rear Door
List price $59.95
-17% $49.95 /pair

In stock

Limited time!

MTX SS5

250W RMS 5.25" Signature Series 2 Way Component 4-ohm System

SS5 big
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250W RMS 5.25" Signature Series 2 Way Component 4-ohm System

• 125 watts RMS Each
• 1-3/16" Teteron Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84.9 dB

Free Speaker Accessory at Checkout!
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Save $13 on install kits for this speaker

found car based on your search
Fits the following location in your Forenza
  • Lower Rear Door
$499.95 /set

Available

Ships in 10-14 days

MTX Audio THUNDER51 with Sound Damping

360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System + NVX SDBSK2 Premium Sound Damping

THUNDER51_SDBSK2 big
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360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System + NVX SDBSK2 Premium Sound Damping

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forenza
47
$264.94

In stock

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

MTX Audio THUNDER51 (2-Pairs, 4-Total)

720W Peak (360W RMS) 5.25" Thunder Series 2-Way Component System (2-Pairs)

THUNDER51_2 big
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720W Peak (360W RMS) 5.25" Thunder Series 2-Way Component System (2-Pairs)

• Peak Power: 180W • RMS Power: 90W
• 1" Soft Dome Tweeter
• Mounting Depth: 2.19"
• Polypropylene Cone and Rubber Surround

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forenza
1
$499.90

In stock

Only 2 Left!

• Peak Power: 180W • RMS Power: 90W
• 1" Soft Dome Tweeter
• Mounting Depth: 2.19"
• Polypropylene Cone and Rubber Surround

MTX Audio RTX108 with Speaker Installation Kit

180W Peak (90W RMS) 5.25" Thunder Series 2-Way Component System with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

THUNDER51, XBAF525, SDSK2, SDRLR1, BTK106 big
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180W Peak (90W RMS) 5.25" Thunder Series 2-Way Component System with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• Peak Power: 180W • RMS Power: 90W
• 1" Soft Dome Tweeter
• Mounting Depth: 2.19"
• Polypropylene Cone and Rubber Surround

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $13 on install kits for this speaker

found car based on your search
Fits the following location in your Forenza
  • Lower Rear Door
148
List price $312.66
-7% $289.98 /set

In stock

• Peak Power: 180W • RMS Power: 90W
• 1" Soft Dome Tweeter
• Mounting Depth: 2.19"
• Polypropylene Cone and Rubber Surround

MTX THUNDER52 with Installation Accessories

90W RMS 5.25" 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

THUNDER52, XBAF525, SDSK2, SDRLR1, BTK106 big
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90W RMS 5.25" 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $13 on install kits for this speaker

found car based on your search
Fits the following location in your Forenza
  • Lower Rear Door
149
List price $192.66
-17% $159.98 /pair

In stock

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

MTX Audio THUNDER52 with Sound Damping

180W Peak (90W RMS) 5.25" Thunder Dome Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

THUNDER52_SDBSK2 big
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180W Peak (90W RMS) 5.25" Thunder Dome Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forenza
48
List price $138.69
$134.94

In stock

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

MTX TERMINATOR5 with Sound Damping

140W Peak (70W RMS) 5.25" Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

TERMINATOR5_SDBSK2 big
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140W Peak (70W RMS) 5.25" Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 70 watts Peak Each, 35 watts RMS Each
• Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forenza
46
List price $88.69
-16% $74.94

In stock

• 70 watts Peak Each, 35 watts RMS Each
• Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

MTX TERMINATOR5 (2-Pairs, 4-Total)

280W Peak (140W RMS) 5.25" Terminator Series 2-Way Coaxial Car Speakers (2-Pairs)

TERMINATOR5_2 big
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280W Peak (140W RMS) 5.25" Terminator Series 2-Way Coaxial Car Speakers (2-Pairs)

• 70 watts Peak Each, 35 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forenza
List price $139.90
-14% $119.90

In stock

Only 2 Left!

• 70 watts Peak Each, 35 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

MTX SS5 with Sound Damping

500W Peak (250W RMS) 5.25" Signature Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

SS5_SDBSK2 big
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500W Peak (250W RMS) 5.25" Signature Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84.9 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forenza
46
$514.94

Available

Ships in 10-14 days

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84.9 dB

MTX SS5 with Installation Accessories

250W RMS 5.25" 2-Way Component Speaker System with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

SS5, XBAF525, SDSK2, SDRLR1, BTK106 big
Go to item page Right Arrow Icon of Right Arrow

250W RMS 5.25" 2-Way Component Speaker System with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $13 on install kits for this speaker

found car based on your search
Fits the following location in your Forenza
  • Lower Rear Door
147
$539.98 /set

Available

Ships in 10-14 days

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

MTX SS5 (2-Pairs, 4-Total)

1000W Peak (500W RMS) 5.25" Signature Series 2-Way Component Speaker System (2-Pairs)

SS5_2 big
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1000W Peak (500W RMS) 5.25" Signature Series 2-Way Component Speaker System (2-Pairs)

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forenza
$999.90

Available

Ships in 10-14 days

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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    FAQ for Speakers in 2004 Forenza

    Q: Can I upgrade or change the Speakers in 2004 Suzuki Forenza?

    A: Yes this page includes all the best Speakers that work in your Forenza.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.