I have the ss/sc with stage 2 with 2.9 pulley, ottp heat exchanger and injen intake. I would like to get the 3" hahn exhaust with the 2.5"inlet to bolt up to the stock downpipe. Do you think this exhaust will work good for me or will it actually hurt performance. I have the 2.25 borla exhaust right know and it seems to small.

 

your not moving enough air to warrant that big of an exhaust. stick with the borla unless you plan on making quite a bit more power in the future

 

Isn't this really only a 2.5" exhaust because of the inlet that i'm going to use.

 

no, it has 3 inch piping

 

Does anyone else have any opinions

 

i suggest you upgrade the downpipe instead considering it is the most restrictive part of the SS/SC exhaust

 

the tansition point between the stock down pipe and resinator pipe are very restrictive.
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and rumor has it that the sock resinator pipe is 2" i.d.

 

the downpipe where they press the o2 bung into is less than 2 inches

 

contact Josh at OTTP for advice...I purchased a used 3 inch hahn downpipe. it has a nice flange and nice flex, and nice 3 inch tubing. but the flange i.d is 2.5. Needless to say i sold the hahn header and wil machine and repair the hahn downpipe. But you asked for advice, i am not impressed with hahn so listen to blazin07ss here

 

I've only heard good things on Hahns Catbacks good sound quality etc...but 3" is overkill for your current mods

 

yeah if ur running pretty close to a stage 2 setup then ur not makin over 250whp so u dont need to up grade to the 3 inch piping.

 

i JUST moved up from a 2.8, 60s, and tune. to a 2.6, 79s, h/e, 3.5"tb, RAW 3" intake, meth, and THEN i bought the hahn header/downpipe/exhaust. up untill now i've been running the stock exhaust