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TG 200 cell crossover sports cats: review

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YOUR RESEARCHTG 200 cell crossover sports cats: review

Leading reported evidence

Disconnect battery whilst we did the job in order

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Performed · outcome unconfirmed · Original poster
I disconnected the battery whilst we did the job in order to let the ECU have a fresh take on the fuelling, so no issues there.
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TG 200 cell crossover sports cats: review

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Leading evidence: 'Disconnect battery whilst we did the job in order' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect battery whilst we did the job in order' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Replace original cats made the difference

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Suggestion
Replacing the original cats made the difference.
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TG 200 cell crossover sports cats: review

Run oe manifolds

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Suggestion · Original poster
Am running the OE manifolds for reference!
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TG 200 cell crossover sports cats: review

Frequently discussed actions (3)

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Disconnect battery whilst we did the job in order

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed · Original poster
I disconnected the battery whilst we did the job in order to let the ECU have a fresh take on the fuelling, so no issues there.
Original post Read captured discussion
TG 200 cell crossover sports cats: review

Replace original cats made the difference

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion
Replacing the original cats made the difference.
Original post Read captured discussion
TG 200 cell crossover sports cats: review

Run oe manifolds

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion · Original poster
Am running the OE manifolds for reference!
Original post Read captured discussion
TG 200 cell crossover sports cats: review

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3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

911uk: 1 discussions

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Generation: 20261026T222516Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Yesterday I went to to relieve fellow forum member @Interference Fit of his TG 200 cell crossover cats. He’d previously removed them to reduce the volume of the full system he’s got on his car. But I wanted a bit more throatiness from my car, to get it a bit closer to the PSE on my old 40AE. With the added benefits of saving a few kg and possible power increase. I thought I had the TG mild back boxes on my car, but upon removing the bumper and heat shields it turns out they are in fact the lesser spotted Euro Cup GT variety. They definitely sound good compared to stock, but are still on the muted side. Anyway, @Interference Fit did 98% of the work, and we got the bumper off, everything disassembled, cats & sensors swapped and reassembled in about 3 hours which was pretty good going. Have since driven about 60 miles of mixed driving - and can say I am very happy with the results. There’s about an extra 20% of volume, but absolutely no drone or rumble at motorway speeds. Sounds smooth and not harsh or metallic. Does the butt dyno say it’s a bit livelier at higher revs? Yes - but could easily be placebo effect. There’s no noticeable drop in torque lower down the revs. I disconnected the battery whilst we did the job in order to let the ECU have a fresh take on the fuelling, so no issues there. Am running the OE manifolds for reference! Anyway, good mod and highly recommended. Added benefit of everything being more shiny under the back of the car now!

POST 2Original post

excellent, a solid exhaust sound is such a positive on a driving experience how long did it take to swap them over ?

POST 3Original post

Quotes source post: 2696847

We managed it in about three hours, aided by the experience I gained taking them off mine just a few weeks ago. It also helped that Jez's car didn't put up a fight at all, everything coming apart with ease. They sounded great on Gez' car - nice and throaty without being intrusive or obnoxious. In combination with the TG headers and full 'Sports' TG silencers, mine was just too loud. Replacing the original cats made the difference.

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