Gerald
Enthusiast
I think rear exhaust freed up like 15HP. I think also the engine or heads flow better also for the extra additional HP..
1998+ came with stock headers. They weren't good for any documented HP gains, but the saved on weight. But you can't compare those stock headers to aftermarket Belangers , etc. for HP gain.
Gerald
1998+ came with stock headers. They weren't good for any documented HP gains, but the saved on weight. But you can't compare those stock headers to aftermarket Belangers , etc. for HP gain.
Gerald