bought all the mandrels to make the exhaust for my swap, 2.5in y into a flowmaster merge to a single 3.5 with an aero chamber. bought bigger planning on mods down the road. how bad is torque gonna suffer on a stock lm7 with a cai?
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bought all the mandrels to make the exhaust for my swap, 2.5in y into a flowmaster merge to a single 3.5 with an aero chamber. bought bigger planning on mods down the road. how bad is torque gonna suffer on a stock lm7 with a cai?
Depends what other mods do you have? shouldn't be too bad.
no other mods at this time.
Overkill, but whatever floats your boat.
Its more than you need but your stock manifolds aren't gonna flow great. So that means you prolly wont lose any down low. Like ^he^ said its over kill for the time being. However single 3.5 is good to like 400 some odd horsepower. So thats good if youve got big plans.
thanks for the input. i bought this truck with the intentions of first doing a swap and then doing a homemade turbo setup. didnt want to have to make a whole diff exhaust six months or so down the road.
Well thats good then. Should flow nicely when you get it boosted.
You'll be fine.
lol Its good to a lot more than that.Quote:
Originally Posted by kerrige
Should be good to 500 shouldn't it?
Should be.
Single 3 is good to around 500. 3.5 can support more.Quote:
Originally Posted by Xlr8n
A friend of mine has made 825whp with 3.5" exhaust. Not saying it wouldnt pick up power with 4" but it made close to 1K crank with single 3.5.
3.5" will be fine. Ive ran overkill exhaust and there was minimal difference from a set up closer to stock.