Test pipes are designed to replace the factory catalytic converter to improve exhaust flow.
Keep in mind however that they are not legal for street use and should only be used for racing.

 | (VTEC POWER) Stainless Steel HIGH FLOW Racing Cat Converter Test Catalytic Pipe $29.98
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 | 93-97 Civic Del Sol CRX JDM STAINLESS STEEL SUPER FLOW TEST CAT RESONATOR PIPE $27.98
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 | Test Pipe High Flow CAT Resonator Acura Integra 94-01 $17.00
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 | 88-91 HONDA CRX STAINLESS HIGH FLOW TEST PIPE CAT BLACK O2 SENSOR $28.00
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 | 92-95 HONDA CIVIC 93 EG LX EX HIGH FLOW CAT TEST PIPE $29.00
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 | MEGAN RESONATOR DOWN PIPE DOWNPIPE /TEST PIPE 94-00 ACURA INTEGRA GSR 1.8L B18 $63.99
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 | ACURA INTEGRA 94-01 DC2 1.8L RS /LS /GS HEADER + TEST PIPE $66.50
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 | Test Pipe CAT Acura Integra GSR 94 95 96 97 98 99 00 01 $26.99
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 | MEGAN STAINLESS RESONATOR TESTPIPE TEST-PIPE INTEGRA TYPE-R GSR B18 B18C5 B18C $39.95
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 | Test Pipe CAT Acura Integra LS 94 95 96 97 98 99 00 01 $17.99
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 | INVIDIA Stainless Test Pipe Testpipe Integra LS RS DC2 DC4 $63.00
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 | TEST PIPE /TURBO CAT 95-01 ACURA INTEGRA GSR B18 DC2 NEW $44.99
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 | 2" /2.25" CATBACK TEST PIPE EXHAUST EXTENSION ADAPTER CAT BACK SYSTEM STAINLESS $17.88
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 | 88-00 HONDA CIVIC STAINLESS HIGH FLOW TEST PIPE CAT BLACK O2 SENSOR $29.95
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 | JDM RACING Stainless Steel Cat Converter High Flow Test Catalytic Exhaust Pipe $27.98
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 | 90-97 ACURA INTEGRA STAINLESS HIGH FLOW TEST PIPE CAT BLACK O2 SENSOR $28.00
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 | 88-00 Honda Civic S /S HIGH FLOW CATALYTIC CONVERTER CAT RESONATOR TEST PIPE TUBE $27.98
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 | 94-01 ACURA INTEGRA DC2 DC4 HIGH FLOW CAT TEST PIPE $27.98
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 | INVIDIA HS94AIGTPP 94-01 ACURA INTEGRA TEST PIPE $53.32
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 | Acura Integra 94 95-01 LS RS GS CAT Test Pipe Resonator $26.90
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 | INVIDIA CAT DELETE TEST PIPE 1994-99 ACURA INTEGRA GSR $63.00
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 | Acura Integra GSR 94 95 96-01 CAT Resonator Test Pipe $29.90
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 | 94-01 Acura Integra Stainless JDM Racing Hi-Flow Test Exhaust Resonator Pipe $27.98
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 | BLOX 2.25" TEST PIPE 88-00 CIVIC CRX INTEGRA 90-01 $90.00
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 | Test Pipe CAT Acura Integra 94-97 98 99 00 01 LS RS GS $29.95
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