Bigger y-pipe and exhaust

[95TahoePA]

My buddy has a 98 1500 extended cab 6' bed w/ the tips right where you have them and it sounds just about the same. Less throaty cause he's got high flow cats with ****** headers.

 

[KyleRW]

magnaflow has a complete cat assembly that bolts to manifolds. is mandrel bent 2.5 front to back. and the factory is 2.5 from mani to muffler then single 3" out

Resurrection! I’d like to point out that I just received the Magnaflow 23453 and it is only two inch. I assumed this was the one referenced here. Is there another that is 2.5?

 

[swathdiver]

Resurrection! I’d like to point out that I just received the Magnaflow 23453 and it is only two inch. I assumed this was the one referenced here. Is there another that is 2.5?

2.5 would be overkill for a SBC in a truck. Might even slow it down.

 

[KyleRW]

2.5 would be overkill for a SBC in a truck. Might even slow it down.

I agree if it were the stock engine 255 hp engine, but I am going towards a a 325-350 hp zone.

Either way, this thread has come up in my searches a lot , and I just wanted to clarify that that kit is 2 inches.

 

[Squirrelsmith]

I just bought the bolt on y pipe from flowmaster. I'll go measure it in a bit

 

[IRQVET]

I just ordered the y pipe kit from Jegs as I’m in the same boat. Except I just had a new 3 chamber Magnaflow installed. My current cats are garage and I think I have a blockage as the new crate engine only has 38K on it but its lacking power, especially when towing on the highway.

JEGS 31006: Vortec Y-Pipe Fits Select GM 5.7L & 5.3L [Stainless Steel] - JEGS

SS409 Y-PIPE 99 GM

www.jegs.com