Should i use this..?

[BrandOmatic]

My truck came with a complete true dual exhaust system with chrome tips and glass packs to hook up to stock 400 sbc exhaust manifolds. Now i\'m thinking that this pipe could be modified just a little at the front to work with the headers. The pipe is in pretty good shape, got probably a lifetime left in it as much as these trucks get driven. However, it is only 2\" pipe... that is probably the big drawback. I thought maybe i could get off cheap with some decent but cheap mufflers in place of the glass-packs, and just bolt the stuff up.



This is just 1 option. I do have money for a brand new exhaust system, 2 1/2\" with 40 series flowmasters or whatever... $400 or how much ever it costs... but i hate to spend all that dough when i could get off for maybe $100 and use what i have.



Will there be much of a power loss with this 2\" system versus a brand new 2 1/2\" system? give me your opinions, thanks fellas

[stpparts]

It all depends where your motor will make its power.

If you plan on 4500rpm launch and trippin the lights 7000rpm, that exhaust is (quite) a bit small.

But if you have a mild small block, keep the true duals.

[BrandOmatic]

its a 357 about 10:1, vortec heads, airgap intake, 268/274 .488/.501 cam 1600-6000 range (i think), holeshot 2000 converter (might be too low of stall). I imagine this exhaust might choke it a little.. 10-20hp lost maybe??? vs. a 2 1/2\" inch system with good muff\'s.

[xeniadrums]

you can find flowmaster 40\'s on ebay for $30-$60....

[BrandOmatic]

well, if i\'m not mistaken, don\'t flowmasters only come in 2 1/4\" minimum? Of course i could get conversion pieces that go from 2\" to 2 1/4\" or something, or i\'m sure they have them at the exhaust shop..