bullets?

[bustuup]

Ok I decided to go with the bullets for my true dual exhaust, my only question is what size inlet and outlet should it be and what is the difference?

[H&S_Miner]

year, make, model, engine, etc............

need to know in order to help ya out :read:

[bustuup]

1999 chevy tahoe 4 door 350 5.7l, flowtech headers, k&n FIPK II intake, dual electric fans, msd ignition, 1.6 crane cams gold roller rockers.

[bigolblackie]

Either 2.1/4" or 2.1/2" is my recomendation. I recomend the 2 1/4" for better lowend torque. The longer the bullet,the deeper the tone will be.:bowtie:

[bustuup]

Ok I was thinking 2 1/2 just like the flows I have, my brother bought 3 1/2" is that going to cause any problems?

[TigerEyz3]

Ok I was thinking 2 1/2 just like the flows I have, my brother bought 3 1/2" is that going to cause any problems?
You'll be fine with 2-1/2" I/O. Generally, 2-1/4" is considered the norm for flow reasons. However, you probably won't notice any difference with the 2-1/2" pipe since you already have the same size I/O diameter.

If your brother is running dual 3-1/2" he will probably see some low-end torque drop-off. If it's a single 3-1/2", he'll probably be fine. The only noticable thing would be the off-the-line / low-end area, no engine troubles.