Swearbody
Full Access Member
- Joined
- Nov 4, 2018
- Posts
- 701
- Reaction score
- 716
- Location
- Birmingham AL
- First Name
- Jeff
- Truck Year
- 84
- Truck Model
- C1500
- Engine Size
- 355 sbc
Also you can make upwards of 500+hp through a single 3" pipe so id say your 2.25 duals is fine for a stock 5.3. Its not about the the size of the pipe as much as its about the flow/restrictions/ and frequency of the pulses. You want the x or h to help stabilize the exhaust pulses and with the case of the x create scavenging(where one pulse helps pull the other through the pipe. Just my understanding of it anyway.