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168 products

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Radiator Relief 16oz. by DEI - Modern Automotive Performance
$7.99 $14.99
DEI Radiator Relief 16oz. (040200)
Save 47% In Stock
DEI Heat Shield for Exhaust Piping (010452)
Titanium Pipe Shield - Exhaust Heat Shield by DEI - Modern Automotive Performance
$75.99 $107.36
DEI Heat Shield for Exhaust Piping (010452)
Save 29%
DEI Door Damping Kit | 1990-2005 Mazda Miata (50296)
$17.99 $25.54
DEI Door Damping Kit | 1990-2005 Mazda Miata (50296)
Save 30% In Stock
DEI Oil Filter Heat Shields (010740/1)
DEI Oil Filter Heat Shields (010740/1)
Starting At $6.99
DEI Oil Filter Heat Shields (010740/1)
Save 25% In Stock
DEI Easy Loom / Line Sleeve Tools (011008/9)
DEI Easy Loom / Line Sleeve Tools (011008/9)
Starting At $5.99
DEI Easy Loom / Line Sleeve Tools (011008/9)
Save 29% In Stock
DEI ONYX Series Thermal Pipe Shield (010496)
DEI ONYX Series Thermal Pipe Shield (010496)
$38.99 $59.17
DEI ONYX Series Thermal Pipe Shield (010496)
Save 34%
DEI Custom Fit T25/T28 Titanium Turbo Shield | (010148/9) - Modern Automotive Performance - 1
T25/T28
Starting At $219.99
DEI Custom Fit T25/T28 Titanium Turbo Shield (010148/9)
Save 34% In Stock
LED - LiteN Boltz Accent Lighting - Red by DEI - Modern Automotive Performance
$17.99 $24.72
LED - LiteN Boltz Accent Lighting - Red by DEI
Save 27%
DEI 4" Diameter Speaker Baffles (050310)
Speaker Baffles - 4" Round by DEI - Modern Automotive Performance
$7.99 $11.24
DEI 4" Diameter Speaker Baffles (050310)
Save 29%
Under Hood Thermal Acoustic Lining by DEI - Modern Automotive Performance
$73.99 $104.48
Under Hood Thermal Acoustic Lining by DEI
Save 29%
Design Engineering Heat Screen GOLDâ„¢ (010913/19)
Starting At $74.99
Design Engineering Heat Screen GOLDâ„¢ (010913/19)
Save 30% In Stock
DEI Boom Mat Headliners
DEI Boom Mat Headliners
Starting At $184.99
DEI Boom Mat Headliners
Save 30%
DEI Thermal Exhaust Speed Sleeves (010083)
DEI Thermal Exhaust Speed Sleeves (010083)
Starting At $81.99
DEI Thermal Exhaust Speed Sleeves (010083)
Save 34%
DEI EXO Series Exhaust and Pipe Wrap - 1.5" Width (010075)
DEI EXO Series Exhaust and Pipe Wrap - 1.5" Width (010075)
Starting At $28.99
DEI EXO Series Exhaust and Pipe Wrap - 1.5" Width (010075)
Save 29% In Stock
Exhaust Wrap - Tan - 2" wide x 50' roll by DEI - Modern Automotive Performance
$27.99 $39.67
DEI Exhaust Wrap - Tan - 1" wide x 50' Roll (010101)
Save 29% In Stock

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DEI is one of the foremost suppliers of thermal tuning products featuring products for racers, street performance enthusiasts, and hobbyists alike.