Quote:
Originally Posted by glb
Not interested in louder, just hp and tq.
1. I have na, stock mufflered elise. What are hp & tq gains and where?
2. How much hp does sport cat alone provide?
3. How bad/good would header be with stock muffler?
thx
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1. For a stock NA car expect around 4-6 hp and 3-4 ft lbs of torque (at the wheels). The gains are spread out across the entire powerband with the max benefit at the very top (7800 rpm+)
2. We don't offer the sport cat by itself. Since it's a long-tubed design the sport cat is integrated into the b-pipe (if desired).
3. Honestly the stock muffler isn't that restrictive. I showed an approximate 3 hp gain by using a Von Hep and getting rid of the cat all together (9 hp, 5 ft lbs with this configuration)
These cars are hard to squeeze power out of in NA form. This has been proven with people spending thousands of dollars and hundreds of hours on the dyno (especially Randy Chase) for minimal gains.
Supercharged cars are another story however...