I have a 2010 Lancer gts and I'm goin to be buying a greddy catback exhaust system for it alone with a test pipe to replace the cat and also headers. Has anyone ever used greddy and can you tell me what you think? I'm lookin to get some power increase and a lower grumble sound not a ricy sound.
first off DO NOT put a test pipe on a N/A car, you will get reversion which will HURT power not help it, but more on that later. The Greddy systems are nice and deep as long as you get the higher end models, like either the Ti-C, or Evo2. The SP systems are really quiet and sound almost like stock. The header is a good choice as long as you don't skimp. Now back to reversion. I will try to explain it as simply as possible. Your cylinder moves up an down in the engine block creating exhaust gases to expel out of the exhaust, as this is going on you have a push/pull effect on the air it is making. The catalytic converter helps "trap" gases from being sucked back into the combustion chamber keeping negative pressure (reversion) from filling the combustion chamber decreasing efficiency at which the fuel is burned, now keep in mind that your engine is sometimes going 6,000-7,000 RPM per minute meaning several strokes per second. On a turbo car the turbo actually acts the same as a catalytic converter because the impeller cannot spin both back and forward at the same time. This is where a high flow catalytic converter comes into play. This would be your best choice.
97-05 AUDI A4 B5 B6/VW PASSAT STAINLESS SS TURBO HIGH FLOW CAT DOWN/TEST PIPE 19, STAINLESS STEEL TEST/DOWN PIPE/DOWNPIPE HIGH FLOW CAT 01-05 CIVIC EX EM ES EM2, Mitsubishi Mirage 97-99 00 01 CAT Converter Test Pipe, HIGH FLOW CATALYTIC CONVERTER CAT TEST PIPE 89-94 ECLIPSE NON-TURBO NT, TEST PIPE/TURBO CAT 95-01 ACURA INTEGRA GSR B18 DC2 NEW, 89 90 91 92 93 94 240SX S13 3" TEST PIPE/CAT CONVERTER, 92-96 HONDA PRELUDE Si HI FLOW CAT CONVERTER TEST PIPE, Test Pipe Resonator Mitsubishi Mirage 97 98 99 00 01 DE, CAT Resonator Test Pipe Accord 2008 2009 V6 Coupe EX-L, STAINLESS DOWN PIPE TEST PIPE HIGH FLOW CAT CONVERTER 02-05 CIVIC SI EP3 3DR HB, 95-99 DODGE NEON R/T STAINLESS DOWN/TEST PIPE HIGH FLOW CAT CONVERTER EXHAUST, SS RACING DOWN/TEST PIPE HIGH FLOW CAT EXHAUST 95-99 MITSUBISHI ECLIPSE TURBO, 90-93 HONDA ACCORD 2/4DR HIGH FLOW CAT CONVERTER TEST PIPE, Eclipse 1995 1996 1997 1998 99 Non Turbo Test Pipe CAT, STAINLESS DOWN/TEST PIPE HIGH FLOW CAT CONVERTER HONDA CIVIC DEL SOL CRX INTEGRA, 2"/2.25" CATBACK TEST PIPE EXHAUST EXTENSION ADAPTER CAT BACK SYSTEM STAINLESS, STAINLESS DOWN/TEST PIPE HIGH FLOW CAT CONVERTER JDM 90-93 ACCORD 88-01 PRELUDE, Test Pipe CAT Nissan Sentra 91-93 94 95 96 97 98 99 GXE, STAINLESS DOWN PIPE TEST HIGH FLOW CAT CONVERTER HONDA CIVIC DEL SOL CRX INTEGRA, CAT Test Pipe Mirage 1997 1998 1999 2000 2001 LS DE ES, Invidia Downpipe Down Test Pipe Combo Cat Delete 08-UP MITSUBISHI EVO X, Maxima 2000 2001 2002 2003 GXE GLE Test Pipe Resonator, Mirage 1997 1998 1999 2000 2001 DE LS ES Test Pipe CAT, Maxima 1995 1996 1997 1998 99 GLE SE GXE Test Pipe CAT, Eclipse 1989 1990 1991 1992 1993 1994 Turbo Test Pipe, Nissan Maxima 95-97 98 99 GLE CAT Resonator Test Pipe, Megan Test Pipe CAT Nissan 240SX 89 90 91 92 93 94 KA24, Eclipse 1989 1990 1991 1992 1993 1994 NT GS Test Pipe, Test Pipe CAT Eclipse 95 96 97 98 99 Non-Turbo RS GS, Sentra 91 92 93 94 95 96 97 98 99 XE SE Test Pipe CAT, Test Pipe CAT Mitsubishi Eclipse 89-91 92 93 94 Turbo, Resonator Test Pipe Mits Mirage 97 98 99 00 01 DE LS ES, Resonator Test Pipe Eclipse 89 90 91 92 93 94 Non-Turbo, 92-96 HONDA PRELUDE Si HI FLOW CAT CONVERTER TEST PIPE, m2 Test Cat Pipe 2.25" Honda Civic 1988-2000 89 90 91 92 93 94 95 96 97 98 99, CAT Resonator Test Pipe Honda Civic EX 01 02 03 04 05, Resonator Test Pipe CAT Honda Accord 2008 2009 V6 2DR, HONDA ACCORD PRELUDE STAINLESS STEEL CATALYTIC HIGH FLOW CAT TEST PIPE+GASKET, 00-03 NISSAN MAXIMA HIGH FLOW RESONATOR TEST PIPE/CAT, 94-97 HONDA ACCORD CD 2.2L 4CYL CATALYTIC HIGH FLOW CAT TEST PIPE+GASKET+BOLTS, Test Pipe CAT Mits Lancer Evo VIII Evolution 8 03 04 05, STAINLESS SS TEST PIPE HIGH FLOW CAT EXHAUST 00-03 NISSAN MAXIMA GXE/GLE/SE A33, Integra GSR 1994 1995 1996 1997 98 99 00 2001 Test Pipe, Test Pipe CAT Honda Accord L4 98 99 00 01 02 DX LX EX, ECLIPSE/TALON 1G NON TURBO NT STAINLESS CATALYTIC HIGH FLOW CAT TEST PIPE+GASKET, CAT Test Pipe Sentra XE GXE SER 91 92 93 94 95 96 97-99, Nissan Maxima 00-03 GXE GLE SE CAT Resonator Test Pipe, ECLIPSE NT/NON TURBO STAINLESS STEEL CATALYTIC HIGH FLOW CAT TEST PIPE+GASKET, CIVIC SI EP3 CATALYTIC CONVERTER TEST PIPE RESONATOR HIGH FLOW CAT+GASKET+BOLTS, 01-05 ALL HONDA CIVIC EX 1.7L STAINLESS HIGH FLOW CAT CATALYTIC TEST PIPE+GASKET,