Exhaust ???

[j-6]

I was wondering will a 3.5 single shot help the E/t on a 500hp or do I need to stick with 3in down and 2.5 catback help guys.

 

["Turbo-T"]

Not sure about a 3.5 but I'd definitely do a 3 inch dp and a 3 inch straight shot. Don't even bother with a 2.5 cat back. My 2 cents.

 

[turbofabricator]

Not sure about a 3.5 but I'd definitely do a 3 inch dp and a 3 inch straight shot. Don't even bother with a 2.5 cat back. My 2 cents.

A 2.5" dual cat back GN will run DEEP....I mean DEEEEEEP in the 9's. Don;t let ANYONE tell you different!!!! Geno's GN (street car) has run 9.70 @ 138+ with an OLD 2.5 ATR dual exhaust with Dynomax mufflers. I personally drove it to a 10.25 @ 136 mph. (first pass in the car ). I think it might even be an OLD 2.25" ATR system. I'll have to verify with calipers, but I think it IS a 2 1/4". I am amazed at what some people think is NEEDED to go fast. He does have a 3.5" down pipe and a TA-49 turbo, I think, or maybe it's a 'little' bigger than that. :biggrin:

2.5" exhaust is more than most folks will ever out flow. Dennis Hogan runs right at 150mph through a dual 3" with THREE mufflers, too. Why does everyone think they NEED 5" dual pipes to run 10.50's? Maybe their tune-up is off? Naaawww......Must be the pipes.:biggrin:

 

["Turbo-T"]

I still prefer a 3 inch. Why fake it? These cars aren't dual exhausts. Besides doesn't the dual 2.5 cat back weigh more than a single 3 inch single shot?

Just my 2 cents

 

[nullrout]

I still prefer a 3 inch. Why fake it? These cars aren't dual exhausts. Besides doesn't the dual 2.5 cat back weigh more than a single 3 inch single shot?

Just my 2 cents

The dual 2" exhaust I took off weighed 15 pounds more than the single 3" that replaced it.

 

[t-typex1]

A 2.5" dual cat back GN will run DEEP....I mean DEEEEEEP in the 9's. Don;t let ANYONE tell you different!!!! Geno's GN (street car) has run 9.70 @ 138+ with an OLD 2.5 ATR dual exhaust with Dynomax mufflers. I personally drove it to a 10.25 @ 136 mph. (first pass in the car ). I think it might even be an OLD 2.25" ATR system. I'll have to verify with calipers, but I think it IS a 2 1/4". I am amazed at what some people think is NEEDED to go fast. He does have a 3.5" down pipe and a TA-49 turbo, I think, or maybe it's a 'little' bigger than that. :biggrin:

2.5" exhaust is more than most folks will ever out flow. Dennis Hogan runs right at 150mph through a dual 3" with THREE mufflers, too. Why does everyone think they NEED 5" dual pipes to run 10.50's? Maybe their tune-up is off? Naaawww......Must be the pipes.:biggrin:

I dont see 9's thru exhaust on a TA49
I call BS on that one
TA49's dont run like that

 

[whitehot1]

I dont see 9's thru exhaust on a TA49
I call BS on that one
TA49's dont run like that

I think that was with a T-76 turbo if i remember correctly.

 

[turboc87gn]

These cars may not be dual but they just plain look better with two big pipes coming out behind the rear tires i am takin a real hard look at the new rjc exhaust interesting they say they opened the dump on a mid tens car and got no gain!!! simple and effective right up my alley

 

[REAPER231]

These cars may not be dual but they just plain look better with two big pipes coming out behind the rear tires i am takin a real hard look at the new rjc exhaust interesting they say they opened the dump on a mid tens car and got no gain!!! simple and effective right up my alley

i'm getting my rjc 3 inch exhaust next week put on , caint wait

 

[turboc87gn]

does anyone have any sound clips of the rjc exhaust if not you should post some on you tube once yours is done!!!!!