1999transamls1

iTrader: (5)

Im wondering if it's really worth it to swap to the tsp 1 7/8 headers. Does anybody know what size collector the bbks have?

Blk98Vert

iTrader: (2)

Yes, the BBKs are a 2.5in collector

1998silverbird

iTrader: (29)

I would say yes as well. I have BBK headers on my 383 stroker and the car makes good power with them. I think if I were to go to 1 7/8 headers I could maybe pull another 5-10hp and possibly more. Maybe down the road but for now I love the BBK and how clean they are after 2 years on the car and how there is no clearance issues or rubbing anywere with them.

On a stock motor with bolt ons I am not sure if the power gain would be worth the extra money spent on the the bigger headers.

BOBS99SS

iTrader: (2)

Depends on what your mods are now and plans are for the future,to alot of people its not worth it,but if you have a maxed out setup and your looking to get every bit out of it, its worth doing,i cant see sig but what are your mods currently /and your future mods

MikeWS6

^^ Yup for a MAX effort build it is def worth it. To me I really dont care about the small gain because it will get expensive chasing dyno numbers.

1999transamls1

iTrader: (5)

Car is somewhat gutted and I assume going from a 2.5 inch collector and 2.5 inch merge is worth a few ponys. I'd go with the 1 7/8 inch headers 3 inch merge and 3 inch true duals.

1999transamls1

iTrader: (5)

Other mods are pretty much full bolt ons aiming to put a cam in it this summer/ fall and maybe heads

bwolfZ28

iTrader: (40)

I would expect you would gain at least 10rwhp from stepping up to 1 7/8 headers especially when you add a bigger cam to the car.

VIPERBLUELX

iTrader: (2)

Not worth it