aftermarket catback exhaust for Powerboost

[stlgrym3]

looking at options for catback exhaust that won't harm the mpg. any suggestions? want to get a bit louder, a little increase of hp is also welcomed.

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[nrmedic]

None should harm MPG, but you're very limited. Magnaflow has one as does Borla.

 

[stlgrym3]

i do like the dual outlet look, do we have to shave the rear bumper apron to fit a dual outlet exhaust?

 

[nrmedic]

i do like the dual outlet look, do we have to shave the rear bumper apron to fit a dual outlet exhaust?

I've yet to see a dual option. The heat exchanger limits it to a single rear side exit.

 

[Mtnman1]

looking at options for catback exhaust that won't harm the mpg. any suggestions? want to get a bit louder, a little increase of hp is also welcomed.

HP and MPG will not be effected. Only your bank account.

Better to buy a $100 muffler and have the local shop weld it in for $90.

I mean you can waste $1600 on a cat back, but you do you.

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