You can gain a little bit of extra power by installing an underdrive pulley on your engine. They are made of billet aluminum and lighter than the stock pulleys. The reduced weight can give up to 15% power increases. They can also help by running the accessories attached to your engine at a slightly slower speed, so your engine doesn't have to work as hard.
Be sure to purchase a well respected brand. This is not a part you want to be cheap on, as purchasing an unbalanced or defective one can cause serious damage to your engine.
 | 02-06 ACURA RSX DC5 TYPE-S K20 UNDERDRIVE CRANK PULLEY $21.98
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| OBX UNDERDRIVE CRANK PULLEY INTEGRA B18C B18B 94-01 Po $65.00
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| AEM Tru Power Underdrive Pulley Kit Acura Integra 94 95 96 97 98 99 00 01 gsr ls $75.00
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| UNDERDRIVE PULLEY ACURA INTEGRA 90 91 92 93 BLUE $49.00
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| 02-06 ACURA RSX DC5 TYPE-S K20 UNDERDRIVE CRANK PULLEY $21.98
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| UNDERDRIVE PULLEY ACURA INTEGRA 90 91 92 93 Silver $49.00
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| 98-02 HONDA ACCORD V6 3.0 ALUMINUM UNDERDRIVE PULLEY 01 $24.95
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| UNORTHODOX UNDERDRIVE CRANK PULLEY - HONDA /ACURA - BLUE $150.00
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| 97-02 ACURA CL /99-03 TL 3.2L V6 UNDERDRIVE CRANK PULLEY $24.95
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| jdm vtec crank pulley balancer b16 integra underdrive gsr ls b18 type r $80.00
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| 02-06 ACURA RSX TYPE-S 2.0 K20 UNDERDRIVE CRANK PULLEY $33.00
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| 97-02 ACURA CL /99-03 TL 3.2L V6 UNDERDRIVE CRANK PULLEY $24.95
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| 2002 03 04 05 06 ACURA RSX TYPE-S ALUMINUM LIGHT WEIGHT UNDERDRIVE CRANK PULLEY $29.95
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| AEM Tru Power Underdrive Pulley Kit 90-91 Acura Integra 23-7005C $89.00
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| 2002-2006 ACURA RSX TYPE-S DC-5 K20 ENGINE PERFORMANCE UNDERDRIVE PULLEY $31.95
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| 97-02 ACURA CL /99-03 TL 3.2L V6 UNDERDRIVE CRANK PULLEY $24.95
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| Underdrive Pulley Acura RSX Type S 2.0L K20 02 03 04 05 06 Red $29.00
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| UNDERDRIVE PULLEY ACURA INTEGRA 90 91 92 93 RED $49.00
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| Racing Lightweight Underdrive Crank Pulley HONDA Civic ACURA EL 1.7L 01-05 #1 $62.50
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| Ralco RZ Underdrive Pulleys Acura Integra Honda Del Sol $139.00
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| OBX Underdrive Crank Pulley 94-01 Acura Integra silver $65.00
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| Underdrive Pulley Acura RSX Type S 2.0L K20 02 03 04 05 06 Blue $29.00
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| Lightweight Underdrive Crank Pulley HONDA Accord Acura TL /CL 3.0L /3.2L V6 Type-S $59.50
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| Underdrive Pulley Acura RSX Type S 2.0L K20 02 03 04 05 06 Silver $29.00
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| Acura CL TL Inc. Type-S 97-02 Underdrive Crank Pulley Pulleys Blue $37.59
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