I just got ASM header, but isn't that the start of making headers or exhaust system? If he opens up the rear more HP. If you swap motors can standard header work or do they need tot be custom?
I just got ASM header, but isn't that the start of making headers or exhaust system? If he opens up the rear more HP. If you swap motors can standard header work or do they need tot be custom?
1999 Silverado 1500 Ext. cab Red 2/4 hotchkis drop & swaybars, bilstein stocks, AR626 & 404 Nitto's, Yank converter, ASM headers, ASP underdrive pulley, Taylor wires , free mods VCN 2000, Nelson Performance tuning
2002 Red WS6 M6; Flow master K&N
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