New Exhaust on Stock 89 coupe

raven1991 · 10-29-2006

I just put a stock 5.0 on the road after very much body repair. The car has low miles and runs great. It has a limited slip 3:08 rear and 5spd trans and I use it as a daily driver.

I am planning on putting long tube BBK headers with X-pipe(no cats) on the coupe. Can anyone recommend a good set of mufflers that are not to loud but provide a performance increase? I'm leaning toward Flowmasters; What are the differences in their products?

Will adding this exhaust effect the driveability? What kind of performance increase can I expect? Will I have to make other changes other than the O2 sensors?

I already have the X pipe and headers. Thanks

spy23714 · 10-29-2006

I've got the flowmaster 40 series! I love the sound, it's not too loud but it's loud enough. If you're having decision problems, you can never go wrong with flows!

rangerout · 10-30-2006

i have dyno max ultra flows they sound great. i have heard of problems with ground clearness with long tube headers and speed bumps and pot holes in the road. hope it works out for you.

Snake Pliskin · 10-30-2006

Long tubes make good power but prepare to replace your clutch cable regularly if you plan to daily drive it. You also will need to watch speed bumps. When I upgraded heads I went with short tubes to get away from burning up clutch cables. I run MAC shorties into a MAC power chamber and into MAC flowpaths. These have a good strong sound, although it may be too loud for you.

raven1991 · 11-01-2006

Is there a way to protect the clutch cable when using long tube headers?

Snake Pliskin · 11-01-2006

Quote:

Originally Posted by raven1991

Is there a way to protect the clutch cable when using long tube headers?

Nope, just get anyone with long tubes and a stick to show you how the cable runs to within 1/2" or less of the pipes. Logistically it has to be that way. You can attempt to put some heat shielding in between but it gives up the ghost too.

mustang5.0-1982 · 11-02-2006

flowmasters single chambers are good i have 2 chamber american thunder cat back with bbk h its sonds good its loud but i dont get pulled over by the cops for them lol

a73formula · 11-02-2006

wrap some foil around it it works great as a heat shield