S-trim fox - Which exhaust to buy?

fastsvo · 12-02-2010, 01:33 AM

Hey Guys,

I am debating whether to go with a 2.5" or 3" cat back exhaust for this car.

Motor is stock minus the GT-40 intake, 70mm TB, JBA headers, BBK catted 2.5" h-pipe, and 3:73 gears.

This car is driven on the street and I need to find a setup that will flow great and be drone free.

Any ideas?

Thanks!

StangFlyer · 12-02-2010, 11:52 AM

Complete 2.5" system is fine...

What size headers do you have (primaries and collectors)? I would recommend 1-3/4" with 3" collector for a boosted application. If you are keeping cats best to have hi-flow performance ones otherwise they might be a choke point.

fastsvo · 12-02-2010, 12:26 PM

I have old school JBA shorty headers from the early 90's!

Room for improvement for a lowered, street car? perhaps!

12-02-2010, 01:33 AM	#1
fastsvo Registered Member Join Date: Jul 1999 Posts: 44	S-trim fox - Which exhaust to buy? Hey Guys, I am debating whether to go with a 2.5" or 3" cat back exhaust for this car. Motor is stock minus the GT-40 intake, 70mm TB, JBA headers, BBK catted 2.5" h-pipe, and 3:73 gears. This car is driven on the street and I need to find a setup that will flow great and be drone free. Any ideas? Thanks!

12-02-2010, 11:52 AM	#2
StangFlyer Founder Join Date: Jun 1995 Location: Michigan Posts: 19,326	Re: S-trim fox - Which exhaust to buy? Complete 2.5" system is fine... What size headers do you have (primaries and collectors)? I would recommend 1-3/4" with 3" collector for a boosted application. If you are keeping cats best to have hi-flow performance ones otherwise they might be a choke point. __________________ StangFlyer 1991 Mustang GT - Supercharged 377 Stroker 2000 Ford Lightning - Project Lightning Hauler Media Center Gallery - View my member photos

12-02-2010, 12:26 PM	#3
fastsvo Registered Member Join Date: Jul 1999 Posts: 44	Re: S-trim fox - Which exhaust to buy? I have old school JBA shorty headers from the early 90's! Room for improvement for a lowered, street car? perhaps!

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