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Pro Stock John · 11-26-2003, 05:42 PM

I have 1999 Tahoe 5.7/L31:

UPD airbox
Dynomax catback
3.73
Eaton Posi
HPP3

UPD is much better value than FIPK. Yah you still use parts of the factory air tubing but it's fine.

Flowmaster mufflers sad to say don't seem to do much.

I just took my Dynomax catback off it was rotted, it was used and old.

Stock catback on, I am slower.

I am getting a Hooker Max_Flow muffler and using the stock pipes. Dual exhaust would work better for sure but it's going to be a lot more money and I'm looking for decent gains on a budget since I also have a race car.

I have a Yank 2800 to put in the Tahoe as well.

I went 16.3@83mph with 3.08 gears and no mods, so hopefully high 14's with the converter in.

11-26-2003, 05:42 PM	#38
Pro Stock John Registered User Status: Offline Join Date: Mar 2002 Member ID: 1313 Pics: My Gallery Location: Chicago Posts: 106	I have 1999 Tahoe 5.7/L31: UPD airbox Dynomax catback 3.73 Eaton Posi HPP3 UPD is much better value than FIPK. Yah you still use parts of the factory air tubing but it's fine. Flowmaster mufflers sad to say don't seem to do much. I just took my Dynomax catback off it was rotted, it was used and old. Stock catback on, I am slower. I am getting a Hooker Max_Flow muffler and using the stock pipes. Dual exhaust would work better for sure but it's going to be a lot more money and I'm looking for decent gains on a budget since I also have a race car. I have a Yank 2800 to put in the Tahoe as well. I went 16.3@83mph with 3.08 gears and no mods, so hopefully high 14's with the converter in. 1998 Firebird Formula 10.3 99 Z56 Police Tahoe 16.3 (For Sale in 9/30/04)