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1G 1g Megan Racing downpipe and catback?


Probationary Member
Nov 20, 2019
Louisville, Kentucky
Just ordered a 3" Megan Racing downpipe and Megan Racing catback. Is the dp cat eliminating or will I need a testpipe to get rid of cat?


DSM Wiseman
Jul 13, 2005
Auburn Hills, Michigan
Is the dp cat eliminating or will I need a testpipe to get rid of cat?

The MR 1g downpipe is not cat eliminating. You will need either a test pipe or high-flow catalytic converter.

AMSOIL Dlr #352885

Proven Member
Dec 1, 2020
Grimesland, North_Carolina
From 1G :laser: Rally-Crosser:
1) Outside diameter appears about 3".
2) Inside diameter about 2.5" at Turbo flange, turbo is Stock 14b, as best can tell.
3) Flex appears to be very large and about 12" long(?). Will have to measure for accuracy.
4) System is fairly straight, most Pipe joints installed for best flow except :hmm: for extension after resonator.
5) Mounted solid to floor pan, I ass-u-me, possibly :idontknow: , for less chance of being damaged/ripped off in Rally-Cross & less things to break.
6) Clearly, not a quiet OMG system (FWTW)


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